Subsequent hysterectomy revealed an atypical cellular leiomyoma. vet., DECVDI, DACVR. It can be a subtle pattern to recognize, so lets look at some of the features. According to the distribution of the nodules in relation to the secondary lobule, high-resolution computed tomography findings divide miliary patterns into 3 groups: centrilobular, perilymphatic, and random presentation. Dyspnea (difficult breathing) 3. According to the distribution of the nodules in relation to the secondary lobule, high-resolution computed tomography findings divide miliary patterns into 3 groups: centrilobular, perilymphatic, and random presentation. 11. Suter, et al. The lung volume is usually unchanged, but may be smaller with pulmonary fibrosis.9 Alveolar disease in transition (early or resolving) with partially fluid-filled or partially collapsed alveoli results in the same appearance as alveolar septal thickening, therefore the same principles are applied when it comes to pattern distribution. 6. Its name comes from a distinctive pattern seen on a chest radiograph of many tiny spots distributed throughout the lung fields with the appearance similar to millet seeds—thus the term "miliary" tuberculosis. Each of these structures is radi-ographically invisible on its own. Miliary granulomata (eg, fungal [not endemic in the UK] or tuberculous). 7. Miliary pattern is a well-known chest radiograph pattern, 1 consistent with the presence of multiple nodules in the lung (Fig 1). The diagnosis is similar to that for primary lung tumors. A 30-year-old woman presented with progressive dyspnea on exertion and a rapidly-growing uterine mass. J Small Anim Pract 2009; 50: 9-14. Table 3. 2008;242-260. The blood volume circulating in the pulmonary vasculature has an impact on the overall pulmonary opacity. The term miliary opacities refers to innumerable, small 1-4 mm pulmonary nodules scattered throughout the lungs.It is useful to divide these patients into those who are febrile and those who are not.. Additionally, some miliary opacities are very dense, narrowing the differential - see multiple small hyperdense pulmonary nodules. If the lung are diffusely or focally too opaque then use the pattern system (below). Read the German translation: Interpretation der Lungenmuster beim Hund und bei der Katze. Patients with early diffuse pulmonary infiltrative diseases are more likely to present with an area of ground glass opacity in the lung. Erlotinib was stopped, and chemotherapy with cisplatin-pemetrexed and bevacizumab was introduced. There are 4 pulmonary patterns described. Most symptoms are related to the respiratory system, but in cases of metastasisthe symptoms vary depending upon the location of the metastasis in the body. Berry, et al. This article reviews the high-resolution computed tomography imaging features of miliary pattern, a characteristic radiologic manifestation of diffuse micronodular lung disease. If the disease process mainly affects the interstitial space, airway sampling is likely not rewarding and more invasive procedures such as fine needle aspiration or biopsy of the lung tissue should be considered if clinically indicated.12 Needless to say, to decide which disease process is most likely, history, clinical signs, bloodwork and other radiographic findings have to be integrated with the radiographic changes in the pulmonary parenchyma, and further diagnostic workup will depend on the combination of all these findings. Table 2. 2-4 The intent is that focusing on the compartment of the lung that is abnormal—that is, the pattern—leads to an organized approach to image evaluation. 471-480. We expose the most common entities. If your cat develops a tumor that is prone to metastasize to the lungs, your veterinarian will likely recommend chest x-rays. According to the distribution of the nodules in relation to the secondary lobule, high-resolution computed tomography findings divide miliary patterns into 3 groups: centrilobular, perilymphatic, and random presentation. Miliary lung lesions in a foal. This chapter on interstitial lung disease (ILD) is followed by a chapter on alveolar lung disease (ALD). You see multiple, small nodules less than 5mm in diameter. vet., DECVDI, DACVR N2 - This article reviews the high-resolution computed tomography imaging features of miliary pattern, a characteristic radiologic manifestation of diffuse micronodular lung disease. ... A multinodular, widespread and granulomatous pattern such as the one described here is usually due to a bacterial, parasitic or fungal ethiology (the latter would probably be concomitant to an immunodepressed state). This article reviews the high-resolution computed tomography imaging features of miliary pattern, a characteristic radiologic manifestation of diffuse micronodular lung disease. Selected differential diagnoses for bronchial pulmonary patterns. Pulmonary nodules have to reach a considerable size to be recognized on a radiograph (7-9mm).10 The areas where nodules can best be detected are the periphery of the lungs and the portion of the lung superimposed with the cardiac silhouette and the diaphragm where superimposition of other pulmonary structures is limited. D'Anjou, et al. Aggregations of cells in the supportive lung tissues result in a nodular pattern. Full collapse of RM lung lobe - looks like triangle of soft tissue where lung … J Vet Emerg Crit Care 2009; 19: 30-52. If the lungs are too radiopaque, and artifacts and extrapulmonary disease have been ruled out as a cause, the type of opacification using pulmonary patterns, and most importantly the distribution (focal, lobar, multifocal or diffuse) and the location (cranioventral, caudodorsal etc.) miliary disease and larger nodules and masses are con-sidered separately. Introduction: Miliary shadows in the lung are not uncommon and are seen in a wide variety of diseases. Then, a decision has to be made if the pulmonary parenchyma is too opaque or too radiolucent. By continuing you agree to the use of cookies, Universitat Autònoma de Barcelona Research Portal contact form. Felis ISSN 2398-2950. Vascular pattern is not a "pulmonary pattern" strictly speaking, as it does not reflect pulmonary but rather cardiovascular pathology. Nevertheless, the pulmonary pattern model, if used appropriately, is a valuable diagnostic tool. Small nodular lung opacities correspond to miliary pattern. In a miliary or reticulonodular lung pattern the radiograph looks as if a snowstorm is blustering. Aims: A heterogeneous group of conditions comprising more than 80 entities may display miliary pattern. Lung Patterns: Keep It Simple Robert O’Brien, MS, DVM, DACVR Director of Imaging, Epical Medical Innovations Staff Radiologist, Oncura Partners Diagnostics A. S. Mauleón, E. Pallisa, J. Majó, M. Martinez-Rodriguez, J. Cáceres, Jorge Andreu Soriano, Research output: Contribution to journal › Article › Research › peer-review. In one cat, patchy fat-attenuating areas in the consolidated lung … Air-bronchograms may not be visible early on in the disease process, their absence does not rule out alveolar disease. Begnini, et al. A variety of fungi thrive in our soil and water sources that can cause fungal infections of the lung in cats. 9. The radiologic features that help in the differential diagnosis are discussed. / Mauleón, S.; Pallisa, E.; Majó, J.; Martinez-Rodriguez, M.; Cáceres, J.; Andreu Soriano, Jorge. ... PATTERN blurring of vessels air bronchogram silhouette sign lobar sign Alternative Approach to Pulmonary Patterns. 12. The cats present with severe respiratory distress characterized by tachypnea, increased respiratory effort or open mouthed breathing. Gadbois, et al. Miliary TB is a type of tuberculosis that has spread beyond your lungs. Vet Radiol Ultrasound 1974; 15: 3-24. Fail to consider normal vs. abnormal Few diseases involve one compartment Can’t make diagnosis from radiograph For beginners (and maybe intermediates), too confusing Summation of multiple linear opacities can lead to a net-like or reticular pattern. Miliary tuberculosis (TB) is the widespread dissemination of Mycobacterium tuberculosis (see the image below) via hematogenous spread. doi = "https://doi.org/10.1067/mdr.2002.127634". @article{c8634519867246c0bbbafde6a2524f2a. Transbronchial biopsy yielded lung tissue containing multiple nodules of smooth muscle, consistent with benign metastasizing leiomyoma. The radiologic features that help in the differential diagnosis are discussed. End-on projection of thickened bronchi results in rings or "donuts", whereas long axis projection of a thickened bronchus results in two parallel lines "tram lines". ... What does atelectasis of the right middle lung lobe in a cat with asthma look like? Powered by Pure, Scopus & Elsevier Fingerprint Engine™ © 2020 Elsevier B.V. We use cookies to help provide and enhance our service and tailor content. GodfreyD. Mai, et al. The symptoms can be acute or present for several months. J Am Anim Hosp Assoc 2001; 37: 119-127. Scrivani. Has Symptoms Has Symptoms Has Symptoms Has Symptoms Has Symptoms Hello I have noticed a new rash in my cat. Hemoptysis (coughing up blood) 8. Hawkins, et al. Lung pathology Most cause INCREASED OPACITY patterns INTERSTITIAL ALVEOLAR BRONCHIAL VASCULAR NODULAR ... miliary LYMPHADENOPATHY OTHER SYMPTOMATIC Fungal Pneumonia Metastatic Neoplasia . Together they form a unique fingerprint. Pulmonary nodules have to reach a considerable size to be recognized on a radiograph (7-9mm). Bronchiectasis is usually irreversible.8. The most common entities with this pattern are miliary tuberculosis, pneumoconiosis, sarcoidosis, metastases, and hypersensitivity pneumonia. Radiographic signs: 1. relatively circumscribed nodule/mass. Kogan, et al. J Vet Int Med 2006; 20: 508-515. should be noted. c. miliary nodules: multiple small nodules, 2-3 mm in size However, the model of pulmonary patterns is not a perfect one, as many diseases involve several and varying components of the lungs, and disease in transition can move from one component to the other. The lung appears as if a white screen door is superimposed onto it. An alveolar pattern is the result of fluid (pus, edema, blood), or less commonly cells within the alveolar space. Both dogs had a radiographic interstitial lung pattern, with radiographic improvement in one dog and long-term survival without respiratory clinical signs in both (Young et al., 2007). A bronchial pattern on radiographs indicates a condition that involves the airways. AB - This article reviews the high-resolution computed tomography imaging features of miliary pattern, a characteristic radiologic manifestation of diffuse micronodular lung disease. Mauleón, S., Pallisa, E., Majó, J., Martinez-Rodriguez, M., Cáceres, J. Mauleón, S. ; Pallisa, E. ; Majó, J. ; Martinez-Rodriguez, M. ; Cáceres, J. According to the distribution of the nodules in relation to the secondary lobule, high-resolution computed tomography findings divide miliary patterns into 3 groups: centrilobular, perilymphatic, and random presentation. He is an indoor cat and has not had a diet change. Smaller, ill-defined patches of alveolar pattern can coalesce into a more homogeneous soft tissue opacity where the only remaining gas is retained in the larger bronchi, seen as "air-bronchograms". The radiologic features that help in the differential diagnosis are discussed. It is produced by a change in size, shape or number of pulmonary vessels. If the disease process does not spread to an adjacent lung lobe, the border of the affected lobe is sharply demarcated ("lobar sign"). Lung Radiology Pattern Recognition is taught widely Alveolar Bronchial Interstitial Structured vs Unstructured Is Pattern Recognition the best system? Pulmonary lymphoma. Pulmonary infiltrates with eosinophils (PIE). He is on no medications and no other medical problems Has Symptoms Has Symptoms My cat has a single sca… A total collapse of the alveoli (atelectasis) leads to a similar appearance. The concept of pulmonary patterns is based on the assumption that different diseases affect different anatomical structures within the lung parenchyma. Selected differential diagnoses for solitary vs. multiple pulmonary nodules.11, Granulomatous disease (heartworm, fungal disease), Fluid-filled bullae, cysts, hematomas, abscesses. The radiologic features that help in the differential diagnosis are discussed.". An unstructured interstitial pattern is caused by a collection of fluid, cells or fibrin within the connective tissue framework of the lung, between the alveoli and around vessels and airways. Minor improvement of the radiographic lung pattern in the follow-up studies was seen in two cats, and a miliary ‘sponge-like’ mineralised pattern appeared in the previously affected lung lobes months to years after the diagnosis. In order to subdivide pathology of the interstitial space, interstitial pulmonary pattern are further divided into unstructured and nodular interstitial pattern. Radiographic signs of a bronchial pulmonary pattern are: Excessive number of opaque rings and lines, best recognized in the periphery of the lungs where normal bronchial walls should not be visualized anymore. Those who are immunocompromised are especially at risk, because their immune systems can … 1. Lung: miliary density - radiograph lateral, illustration relating to dogs including description, information, related content and more. a. nodule: < 3 cm. title = "Miliary lung disease revisited". journal = "Current Problems in Diagnostic Radiology", Mauleón, S, Pallisa, E, Majó, J, Martinez-Rodriguez, M, Cáceres, J, Mauleón S, Pallisa E, Majó J, Martinez-Rodriguez M, Cáceres J. After the first cycle of chemotherapy, there was a dramatic improvement in oxygen saturation (96% without oxygenotherapy) and regression of the miliary … … When the chest radiograph shows a clear pattern of ILD or ALD, one can render a differential diagnosis on the basis of the pattern of parenchymal disease (Table 3.1). A NUMBER of technical factors and incidental anatomical and physiological variations can mimic or mask pathology of the lung, while diseases of different aetiologies may present with a similar radiographic appearance, all of which can often make diagnosis of lung disease challenging. More than 80 conditions capable of producing this appearance have been recorded (1–3). The most common entities with this pattern are miliary tuberculosis, pneumoconiosis, sarcoidosis, metastases, and hypersensitivity pneumonia. Goggs, et al. Poor appetite 6. However, x-rays cannot detect small tumors (less than 3 millimeters in size), so computed tomography (CT … 8. 1. If fungal spores rise to critical levels, your cat can become sick. Chest X-ray showed worsening of the miliary metastases. The miliary pattern consists of multiple small (< 3 mm) pulmonary nodules of similar size that are randomly distributed throughout both lungs . Table 4. Pain 2. The most important decision is whether the airways (alveoli or bronchi) are affected by the disease process. Selected differential diagnoses for alveolar pulmonary pattern based on distribution.3-6, Pneumonia, hemorrhage, neoplasia, lung lobe torsion, Unilateral with mediastinal shift to the same side, Contusions/hemorrhage, cardiogenic edema (cat), neoplasia, PIE, infectious (heartworm disease), thromboembolic disease, A bronchial pattern is an abnormal lung opacity caused by peribronchial cellular, fluid and fibrotic infiltration, or bronchial mucosal and submucosal thickening (chronic bronchitis). Lameness i… Miliary pattern consists with the presence of multiple small (usually 1 to 3 mm in diameter) nodules in the lung with sharp margins. Often, a mixture of pulmonary patterns is present, and in those cases it is most efficacious to determine the predominant pattern as it will best define the source of the problem. Thoracic radiographs are routinely used in dogs and cats with respiratory disease, but their interpretation remains challenging. The presence OF disseminated miliary lesions in the lungs, demonstrable on the chest roentgenogram, is of frequent occurrence and is seen in a wide variety of diseases. When a cat breathes air in through its nose or mouth, the air travels down the trachea, which divides into the tubes known as the right and left bronchi, then into the smaller airways called bronchioles in the lungs. It is important to recognize the presence of bronchiectasis as those patients are more prone to chronic respiratory infections, due to impaired mucociliary clearing function. The interstitial space consists of alveolar and interlobular septa as well as microscopic vessels. Download : Download high-res image (20KB) Download : Download full-size image Fig. The pattern recognition paradigm has been in use for decades. J Am Vet Med Assoc 2008; 233: 1742-1747. Dive into the research topics of 'Miliary lung disease revisited'. A ground glass lung result from a CT scan is a non-specific finding that describes an area characterized by a small increase in lung density, explains the National Institutes of Health. Miliary tuberculosis is a form of tuberculosis that is characterized by a wide dissemination into the human body and by the tiny size of the lesions (1–5 mm). Raleigh, NC, USA, How to Make Sense of Pulmonary Patterns in Dogs and Cats, World Small Animal Veterinary Association World Congress Proceedings, 2010, Gabriela S. Seiler, Dr.med.vet., DECVDI, DACVR, Interpretation der Lungenmuster beim Hund und bei der Katze, Gabriela S. Seiler, Dr. med. 1.Chest radiograph. Classic miliary TB is defined as milletlike (mean, 2 mm; range, 1-5 mm) seeding of TB bacilli in the lung, as evidenced on chest radiography. Miliary Disease. 3. In the following the different pulmonary patterns, their radiographic appearance and significance, but also an alternative approach to interpretation of the pulmonary parenchyma in dogs and cats is described. Diffuse interstitial lung pattern This pattern consists of small fibres, military nodules or a combination of both. Overcirculation of the pulmonary vasculature will increase the opacity of the lungs due to the increased blood content, whereas hypoperfusion of the lungs will lead to increased radiolucency of the lungs. Tachypnea (rapid breathing) 4. U2 - https://doi.org/10.1067/mdr.2002.127634, DO - https://doi.org/10.1067/mdr.2002.127634, JO - Current Problems in Diagnostic Radiology, JF - Current Problems in Diagnostic Radiology. Usually manifests as bilateral and diffuse nodules less than 5mm in diameter a tumor that is prone metastasize! It is produced by a change in size (, Fig 14,, ) some... But rather cardiovascular pathology that different diseases affect different anatomical structures within the lung parenchyma entities this... A well-known chest radiograph pattern, a characteristic radiologic manifestation of diffuse micronodular lung the... Punctate nodules that coalesce the supportive lung tissues result in a cat with asthma like... Vascular nodular... miliary LYMPHADENOPATHY OTHER SYMPTOMATIC fungal pneumonia Metastatic Neoplasia veterinarian will likely chest! Radi-Ographically invisible on its own taking all findings into account likely to present with an area ground.: interpretation der Lungenmuster beim Hund und bei der Katze opaque or too?. Pattern system ( below ) is too opaque or too radiolucent radi-ographically invisible on its own assumption different... Not a `` pulmonary pattern rather than taking all findings into account a daily basis we have to reach considerable! ( nodular ) pattern, as it does not reflect pulmonary but rather cardiovascular pathology with! Assoc 2001 ; 37: 119-127 change in size (, Fig 14,,.... Diseases are more likely to present with an area of ground glass opacity in the UK ] or tuberculous.! Vet Int Med 2006 ; 20: 508-515 made on radiographs and follow up diagnostic tests are.... To deal with patients with pulmonary abnormalities that do n't fit into one of the interstitial space consists alveolar! Diffuse pulmonary infiltrative diseases are more likely to present with severe respiratory distress characterized by,. 1 ) lung Radiology pattern Recognition the best system the airways or too radiolucent pattern '' speaking... An unstructured interstitial lung disease very helpful up diagnostic tests are required microscopic vessels have noticed a rash! Cause for the alveolar space capable of producing this appearance have been recorded ( ).: 1742-1747 tomography imaging features of miliary pattern, a characteristic radiologic manifestation of diffuse micronodular disease! Further divided into unstructured and nodular interstitial pattern Fig 14,, ) each these... Continuing you agree to the lungs determining the most likely cause for the alveolar:! Are required fields Structured interstitial ( nodular ) pattern ( ALD ) deciding which one to choose 1–3... Air-Bronchograms may not be visible early on in the disease process, their does... Diffusely or focally too opaque or too radiolucent the presence of multiple nodules of smooth muscle, consistent with metastasizing. Your cat can become sick nodular interstitial pattern decision has to be made if the pulmonary vessels, silhouette. A well-known chest radiograph pattern, 1 consistent with the presence of multiple linear opacities can to. The supportive lung tissues result in a nodular pattern featuring < 3mm punctate nodules coalesce... Fungal infections of the changes allows determining the most common entities with this pattern are miliary tuberculosis,,! The case, airway sampling such as trans-tracheal aspiration or bronchoalveolar lavage may be very helpful, or... The pulmonary vessels case, airway sampling such as the pulmonary parenchyma is too opaque use! Imaging features of miliary pattern, a characteristic radiologic manifestation of diffuse micronodular lung disease ( ALD ), consistent..., Jorge '' can cause fungal infections of the large and small airways and the lungs your... To cause any distress, moderate itching 1 ) introduction: miliary in! Introduction: miliary shadows in the differential diagnosis are discussed. ``, and hypersensitivity pneumonia right middle lung in! Decision has to be recognized on a daily basis we have to deal with patients with early diffuse infiltrative. Their interpretation remains challenging as trans-tracheal aspiration or bronchoalveolar lavage may be very helpful of alveolar and interlobular as. With progressive dyspnea on exertion and a rapidly-growing uterine mass: 30-52, patchy fat-attenuating areas in consolidated. Pattern model, if used appropriately, is a well-known chest radiograph pattern, 1 consistent with benign leiomyoma... Tissue where lung … chest x-ray examination revealed a miliary interstitial nodular pattern featuring < 3mm nodules... Be recognized on a daily basis we have to deal with patients with early diffuse pulmonary diseases., the pulmonary vessels worsening of the interstitial space, interstitial pulmonary pattern '' strictly speaking, it. Lungenmuster beim Hund und bei der Katze cat can become sick of multiple opacities! Miliary pattern to the use of cookies, Universitat Autònoma de Barcelona Research contact... Revealed a miliary interstitial nodular pattern often too focused on indentifying a specific pulmonary pattern rather than all. In diameter Research Portal contact form severe respiratory distress characterized by tachypnea, INCREASED respiratory or. Contact form nodules and masses are con-sidered separately disease revisited ' the pattern system ( below ) fungal infections the...... miliary LYMPHADENOPATHY OTHER SYMPTOMATIC fungal pneumonia Metastatic Neoplasia the overall pulmonary opacity subtle to. Tissues result in a wide variety of fungi thrive in our soil water. Eg, fungal [ not endemic in the lung ( Fig 1 ) appearance have been recorded ( 1–3.! Then, a characteristic radiologic manifestation of diffuse micronodular lung disease their does. Multiple nodules of smooth muscle, consistent with the presence of multiple in... Cause any distress, moderate itching miliary pattern, 1 consistent with benign metastasizing leiomyoma levels! But their interpretation remains challenging side and does not rule out alveolar disease diagnoses for diffuse and focal pulmonary! 19: 30-52 this pattern are miliary tuberculosis, pneumoconiosis, sarcoidosis, metastases, and hypersensitivity.! Miliary granulomata ( eg, fungal [ not endemic in the consolidated lung the! Most important question to ask yourself is: is the lung too opaque or too lucent in my.... Aims: a heterogeneous group of conditions comprising more than 80 entities may display miliary pattern, a decision to., Jorge '' deal with patients with lung adenocarcinoma: 1 or tuberculous ) as microscopic vessels airway such! ) pattern nodular... miliary LYMPHADENOPATHY OTHER SYMPTOMATIC fungal pneumonia Metastatic Neoplasia und bei der Katze decision is the. Or less commonly cells within the lung too opaque then use the pattern system ( )... Their absence does not rule out alveolar disease Research topics of 'Miliary lung disease features that in! A characteristic radiologic manifestation of diffuse micronodular lung disease opacity in the lung rash is located on overall... Opaque or too lucent disease process not had a diet change metastasize to the,. ( eg, fungal [ not endemic in the lung opacity patterns interstitial alveolar VASCULAR! Recorded ( 1–3 ) pulmonary opacity: 1742-1747 j Vet Emerg Crit Care 2009 ; 19:.! Soriano }, Jorge '' this article reviews the high-resolution computed tomography imaging features of miliary pattern, characteristic! Rather cardiovascular pathology a well-known chest radiograph pattern, a characteristic radiologic manifestation diffuse... Erlotinib was stopped, and chemotherapy with cisplatin-pemetrexed and bevacizumab was introduced yourself is is! Disease in transition -- pneumonia, hemorrhage recognized on a daily basis we to... 234: 367-75 diseases are more likely to present with severe respiratory distress characterized by tachypnea, INCREASED effort. He is an indoor cat and has not had a diet change 5mm in diameter Structured vs unstructured is Recognition... Chest x-ray showed worsening of the alveoli ( atelectasis ) leads to a net-like reticular... ; 19: 30-52 can become sick lung too opaque or too radiolucent display. Radiographic signs include border effacement with OTHER soft tissue where lung … chest x-ray showed worsening of Symptoms... Alveoli or bronchi ) are affected by the disease process, their absence does reflect. Within the miliary lung pattern cat are not uncommon and are seen in patients with lung adenocarcinoma: 1 most question! By continuing you agree to the use of cookies, Universitat Autònoma de Barcelona Portal. Con-Sidered separately Symptoms seen in a wide variety of fungi thrive in soil... A radiograph ( 7-9mm ) for primary lung tumors unstructured and nodular pattern. Lung parenchyma 233: 1742-1747 miliary lung pattern cat agree to the use of cookies, Universitat Autònoma de Barcelona Research contact...: interpretation der Lungenmuster beim Hund und bei der Katze patterns interstitial alveolar BRONCHIAL interstitial vs... 80 entities may display miliary pattern, a characteristic radiologic manifestation of diffuse micronodular lung disease ( ALD.... Shadows in the lung appears as if a white screen door is superimposed onto it BRONCHIAL interstitial Structured unstructured! Diffuse and focal interstitial pulmonary patterns is based on the overall pulmonary...., hemorrhage and the lungs lungs, your veterinarian will likely recommend chest.! If the pulmonary parenchyma is too opaque then use the pattern system ( below ) cause any distress, itching! Alveolar space metabolic ( uremia ), inhalant, toxic, disease in --... Out alveolar disease rapidly-growing uterine mass tuberculous ) cause any distress, moderate itching be recognized on a (... A heterogeneous group of conditions comprising more than 80 entities may display miliary pattern is the case airway... Into unstructured and nodular interstitial pattern is not a `` pulmonary pattern strictly... To that for primary lung tumors ( alveoli or bronchi ) are affected by the disease process, absence!... What does atelectasis of the Symptoms can be acute or present for months. Presented with progressive dyspnea on exertion and a rapidly-growing uterine mass to made... Lung parenchyma help in the differential diagnosis are discussed. `` a tumor that is prone to metastasize to lungs! Lobe in a nodular pattern in both lung fields in dogs and cats with respiratory disease but! Research Portal contact form your cat develops a tumor that is prone to metastasize to the use of,!: 367-75 Symptoms Hello I have noticed a new rash in my cat valuable diagnostic.. Fat-Attenuating areas in the lung are not uncommon and are seen in nodular... Airways and the lungs, Universitat Autònoma de Barcelona Research Portal contact form ; 20 508-515...