Peer-reviewed veterinary case report
Basosquamous carcinoma with spread in a 17-year-old miniature Pinscher
By Shin, Sang-Kyung et al.·Published in The Japanese journal of veterinary research·2011·College of Veterinary Medicine, South Korea·View original on PubMed →
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Original publication title: Basosquamous carcinoma with systemic metastasis in a miniature Pinscher.
- Species:
- dog
Plain-English summary
A 17-year-old female miniature Pinscher was brought in with a severely enlarged right hind leg, measuring 8 x 5 cm. After examination, it was found that she had a rare type of skin cancer called basosquamous carcinoma, which had spread to her lungs, heart, liver, and other organs. This type of cancer is aggressive and can develop from previous tumors, like the mammary tumor she had removed earlier. Unfortunately, due to the extent of the disease, treatment options were limited, and the prognosis was poor.
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Abstract
Basosquamous carcinoma (BSCC) is a rare malignancy, primarily composed of basal cells with foci of squamous differentiation. It is considered to be histologically an intermediate type between basal cell carcinoma and squamous cell carcinoma, and is known to have aggressive behaviors. BSCC occurred in a 17-year-old female minipin with a history of surgical excision for a mammary tumor. The right upper hindlimb was severely enlarged to 8 x 5 cm. Cross-section showed a homogenous white to yellow-white mass compressing the surrounding muscular tissues. The tumor metastasized also to the lungs, heart, abdominal cavity, liver and salivary gland. Microscopically, basaloid cells were crowded into solid nests or lobules separated by well-developed fibrous tissues with occasional keratinizations. Since there was no skin lesions, the tumor is assumed to be originated from the formerly present tumor in mammary gland. To our literature review, this case is the first BSCC with systemic metastasis in a dog.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/22256426/