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Cutaneous melanocytomas in 10 young cattle
M A Miller1, A D Weaver, P L Stogsdill
1Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, USA.
Veterinary Pathology
|September 1, 1995
Summary
Melanocytomas in cattle are rare, pigmented skin tumors. Surgical excision appears to be an effective treatment, with no recurrence noted in most cases within a year.
Area of Science:
- Veterinary Pathology
- Dermatology
- Oncology
Background:
- Melanocytomas are uncommon skin neoplasms in cattle.
- Diagnosis relies on histopathologic examination of biopsy specimens.
Purpose of the Study:
- To characterize the clinicopathologic features of bovine melanocytomas.
- To evaluate the outcomes following surgical treatment of these tumors.
Main Methods:
- Histopathologic examination of ten biopsy specimens from cattle diagnosed with melanocytoma.
- Review of clinical data including age, breed, tumor location, and treatment outcome.
Main Results:
- Ten cases of melanocytoma in cattle were identified between 1986 and 1993.
- Tumors occurred in young cattle (mean age 9.9 months), with varied breeds and locations.
- Histologically, tumors were pigmented with few mitotic figures.
- Surgical excision resulted in no recurrence in 7 out of 8 cattle with known outcomes, with follow-up periods ranging from 6 months to 30 months.
Conclusions:
- Bovine melanocytomas are typically benign, slow-growing tumors.
- Surgical excision appears to be a curative treatment for melanocytomas in cattle.