Successful management with CHOP for pulmonary lymphomatoid granulomatosis in a dog |
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Authors: | Hatoya Singo Kumagai Daijiro Takeda Seiko Yamamoto Emi Nakanishi Masako Kuwamura Mitsuru Sugiura Kikuya Sasai Hiroshi Yamate Jyoji Inaba Toshio |
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Institution: | Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan. |
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Abstract: | A 3-year-old, spayed female miniature dachshund was presented for vomiting and anorexia. Thoracic radiographs and CT scan revealed abnormal pulmonary opacities at bilateral caudal lobe. Cytological analysis of the pulmonary mass revealed the presence of large lymphohistiocytic cells and small lymphocytes with occasional neutrophils and plasma cells. An open lung biopsy was performed and a diagnosis of pulmonary lymphomatoid granulomatosis (LYG) was made. The dog was administered CHOP based therapy (modified UW-25), and it survived for 1,022 days after admission. Immunohistochemistry revealed pulmonary lesions consisted of many CD79a positive B cells aggregation and proliferation with prominent angiocentric pattern. This was the first case of canine pulmonary LYG managed by CHOP chemotherapy. |
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