OncoLink en espanõl
Share
Types of Cancer > OncoLink Vet > Veterinary Oncology > Tumors
Basosquamous Carcinoma
Supported by the Savannah and Barry French Poodle Memorial Fund
Affiliation:
University of Pennsylvania School of Veterinary Medicine
Last Modified: August 21, 2005
Michael H. Goldschmidt, MSc, BVMS, MRCVS, Diplomate ACVP Professor and Head, Laboratory of Pathology and Toxicology Chief, Surgical Pathology Department of Pathobiology
Frances S. Shofer, PhD, Adjunct Associate Professor of Epidemiology and Biostatistics
Definition: A low-grade malignancy composed of basal cells with foci of squamous or follicular infundibular differentiation.
Epidemiology
| Sex | N | Percent |
| Female | 81 | 20% (21%) |
| Female Spayed | 161 | 39% (33%) |
| Male | 92 | 23% (25%) |
| Male Castrated | 74 | 18% (21%) |
| (Normal Population %) | ||
| Breeds at Increased Risk |
N | Probability | OR | 95% Confidence Interval |
|
| Saint Bernard | 6 | 0.0003 | 6.9 | 3.1 | 15.5 |
| Old English Sheepdog | 6 | 0.0157 | 3.1 | 1.4 | 6.9 |
| Samoyed | 5 | 0.0456 | 2.6 | 1.1 | 6.3 |
| Scottish Terrier | 7 | 0.0305 | 2.4 | 1.1 | 5.1 |
| Golden Retriever | 62 | <0.0001 | 2.3 | 1.8 | 3.0 |
| English Springer Spaniel | 14 | 0.0080 | 2.2 | 1.3 | 3.7 |
| Cocker Spaniel | 27 | 0.0405 | 1.5 | 1.0 | 2.2 |
| Breeds at Decreased Risk |
N | Probability | OR | 95% Confidence Interval |
|
| Boxer | 4 | 0.0168 | 0.3 | 0.1 | 0.9 |
| Rottweiler | 2 | 0.0109 | 0.2 | 0.1 | 0.9 |
| Site | Percent |
| Head | 24.3% |
| Hindlimb | 17.2% |
| Forelimb | 13.0% |
| Neck | 11.4% |
| Back | 9.8% |
| Thorax | 9.8% |
| Abdomen | 8.7% |
| Tail | 2.4% |
| Multiple Sites | 2.1% |
| Perineum | 1.3% |
Clinical Presentation/Physical Exam Findings
- an exophytic (growing outward from the skin) growth, freely movable over the subcutaneous tissue
- seen less often on the head and neck than trichoblastomas
- more are seen on other body sites