Domestic crossbred cat with disseminated aspergillosis. KOH preparation of material obtained from thoracotomy of a 3 year old domestic crossbred cat with invasive Aspergillus fumigatus infection. The cat had marked enlargement of the hilar lymph node
Domestic crossbred cat with disseminated aspergillosis. KOH preparation of material obtained from thoracotomy of a 3 year old domestic crossbred cat with invasive Aspergillus fumigatus infection. The cat had marked enlargement of the hilar lymph nodes that resulted in a partial tracheal obstruction. This preparation was made from portions of the hilar lymph node resected at thoracotomy. Magnification x 132.
Mr RM is 80 and an ex-coal miner.He developed pneumoconiosis from exposure to coal dust. He also developed rheumatoid arthritis and the combination of this disease and pneumoconiosis is called Caplan’s syndrome.
His chest Xray in early 2015 shows extensive bilateral pulmonary shadowing with solid looking nodules superimposed on abnormal lung fields, contraction of his left lung with an elevated diaphragm and a large left upper lobe aspergilloma, displaying a classic air crescent. His CT scan from mid 2014 demonstrates a large aspergilloma in a cavity on the left, with marked pleural thickening around it, which is partially ‘calcified’ towards its base. Inferiorly on other images,remarkable pleural thickening and fibrotic irregular and spiculated nodules are seen, most partially calcified.
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