Penile sarcoid in horse: clinicopathological characteristics with brief literature review
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- 作者：Ghasem Farjani Kish (1)
Seifollah Dehghani Nazhvani (2)
Fatemeh Namazi (1)
Yalda Jalali (2) - 关键词：Sarcoid ; Penile ; Equidae ; Histopathological
- 刊名：Comparative Clinical Pathology
- 出版年：2014
- 出版时间：March 2014
- 年：2014
- 卷：23
- 期：2
- 页码：459-462
- 全文大小：711 KB
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Seifollah Dehghani Nazhvani (2)
Fatemeh Namazi (1)
Yalda Jalali (2)
1. Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
2. Department of Surgery, School of Veterinary Medicine, Shiraz University, Shiraz, Iran - ISSN：1618-565X
文摘
Sarcoids are the most common skin tumors in horses and other equine species affecting all ages, breeds, and color with no sex predilection. A 20-year-old stallion was presented with a history of gradually developing soft tissue mass engulfing the glans of the penis and weight loss. Clinical examinations revealed normal appetite, dysuria, and hematuria. Grossly, the mass was ulcerated, cauliflower-like, with pinkish gray color, constricting the urethral canal. The tumor dimensions were measured 7?×-.5?×-.5?cm. The horse was prepared for a general anesthesia. The histopathological investigation of the tumor revealed epidermal hyperplasia, rete peg formation, hyperkeratosis, and hydropic degeneration of keratinocytes to be common in the epidermis. Dermis showed hyperplasia of the connective tissue that consisted of whorls of neoplastic spindle cells which were separated by collagenous nonvascularized stromal tissue, focal hemorrhage, and mild infiltration of inflammatory cells including lymphocytes, macrophages, and neutrophils. Dermal fibroblastic nuclei were basophilic with stippled chromatin, mostly oval to fusiform. Sarcoid was diagnosed on the bases of morphological and histopathological findings. The follow-up of the case 3?months later showed that the tumor recurred again, but the horse died before further care.