Retrospective study of canine cutaneous tumors in Korea

Abstract

Over the 42 month period from January 2003 to June 2006, a total of 2,952 canine biopsy specimens were received from the Veterinary Medical Teaching Hospital of Seoul National University and from veterinary practitioners across the nation. Out of these, 748 (25.34%) cases were diagnosed as canine cutaneous tumors in the Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, Korea. Thirty-eight different types of cutaneous tumors were identified and categorized into epithelial and melanocytic tumors (56.95%), mesenchymal tumors (38.90%), and hematopoietic tumors (4.14%) located in the skin. Among these, 69.25% were benign and 30.74% were malignant. The top ten most frequently diagnosed cutaneous tumors were epidermal and follicular cysts (12.70%), lipoma (11.36%), mast cell tumors (8.82%), cutaneous histiocytoma (7.49%), basal cell tumors (6.82%), sebaceous gland adenoma (6.68%), sebaceous gland hyperplasia (5.08%), hepatoid gland adenoma (3.61%), apocrine adenocarcinoma (3.07%), and fibroma (2.81%), in order of prevalence. They comprised 68.45% of all cutaneous tumors. These top ten cutaneous tumors were distributed on the trunk (30.08%), head and neck (20.9%), extremities (19.14%), anal and perianal area (8.59%), and tail (3.91%). The age of the dogs with the ten most frequent tumors had a mean age of 8.3 years, with a range of 2 months to 19 years. When all types of tumors were considered together in the entire population, there was no difference in incidence according to sex.

Histomorphological and immunohistochemical characterization of 172 cutaneous round cell tumours in dogs

“…In this study, the frequency of CLs was higher than HCTs. Studies on the prevalence of skin tumours in dogs show that the frequency of HCTs is greater than CLs, but in these cases, only histology was used as a diagnostic tool (Kaldrymidou et al 2002, Pakhrin et al 2007). The diagnosis of PCT, LHS and TVT using IHC (5.2%, 9/172, 3.5%, 6/172 and 4.1%, 7/172, respectively) was greater than the diagnoses using only histology (1.74%, 3/172, 1.17%, 2/172 and 0.06%, 1/172, respectively).…”

An overall assessment of circumanal gland adenoma in a terrier mix breed dog

“…Their average diameter is 0.5-3.0 cm and the lesions are generally well circumscribed. Benign lesions may ulcerate and become infected, possibly resulting in their acute presentation but are rarely adherent or fixed to surrounding structures [11,12] . The canine perianal region has different kinds of glands, such as sebaceous glands, perianal (hepatoid) glands, and apocrine glands of the anal sac.…”

A Gigantic Cutaneous Fibroadenoma in a Dog

“…In contrast, Mikaelian and Gross (2002) mentioned that males were more affected than females by canine keloidal fibroma. However, Mukaratirwa et al (2005) and Pakhrin et al (2007) concluded that, for all classes of canine skin tumors, the sex of the dog did not has any significant influence on the likelihood of developing a tumor. Additionally, Ginel et al (2010) mentioned that when all the sebaceous gland tumors were grouped and analysed, no sex difference was found although estrogen and progesterone receptor expression was reduced in some canine sebaceous gland tumors.…”

“…Cutaneous fibroma was rarely diagnosed in dogs. It comprised 2.8% of the total diagnosed canine skin neoplasms (Pakhrin et al, 2007). Several methods have been used for treatment of canine skin neoplasms.…”