نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه آموزشی علوم درمانگاهی، دانشکده علوم تخصصی دامپزشکی، واحد علوم و تحقیقات، تهران- ایران
2 بیمارستان حیوانات خانگی حمیدرضا فتاحیان
3 گروه بیماری های داخلی دام کوچک، بیمارستان حیوانات خانگی حمیدرضا فتاحیان، تهران- ایران
4 گروه تصویربرداری تشخیصی، بیمارستان حیوانات خانگی حمیدرضا فتاحیان، تهران- ایران
5 گروه جراحی، بیمارستان حیوانات خانگی حمیدرضا فتاحیان، تهران- ایران
6 گروه آسیب شناسی، بیمارستان حیوانات خانگی حمیدرضا فتاحیان، تهران- ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Pheochromocytomas are tumors of the adrenal medulla that affect chromaffin cells. These tumors are not common in dogs but may occur in older dogs with no specific breed noted. They can be solitary or bilateral, functionally active or inactive, benign or malignant. They are malignant if have long-distance metastasis to other organs such as spleen, lung, regional lymph nodes, bone, and CNS. A 9 -9-year-old spayed female Shih Tzu dog was present at Small Animal Hospital with a history of generalized weakness, anorexia, and depression. In ultrasonography, unilateral enlargement of the left adrenal gland was seen and by surgery, the left adrenal gland was removed.Cytologic evaluation by Giemsa staining showed neoplastic polygonal cells with anisokaryosis.
Histopathologic study on tissue specimen revealed a large mass composed of polygonal, uniform vacuolated cells with granular red cytoplasm. Pigmented granules containing hemosiderin and melanin were present in neoplastic cells.
According to diagnostic ultrasonographic and pathologic findings, this tumor was diagnosed as pheochromocytoma. This clinical report aims to report the diagnosis and successful treatment of pheochromocytoma tumor by surgical method in a 9-year-old Shih Tzu dog and to describe the pathological features of this rare mass.
کلیدواژه‌ها [English]
)