Feline Paraneoplastic Alopecia Associated with Metastasizing Intestinal Carcinoma

The document reported on a 10-year-old male neutered British Shorthair cat with feline paraneoplastic alopecia associated with a metastasizing colonic carcinoma. The cat exhibited symptoms such as lethargy, weight loss, and alopecia on the ventral abdomen and hindlimbs for 6 months. Clinical examination showed smooth skin with easily epilated hairs and severe dermatitis and pyoderma. Diagnostic procedures, including abdominal ultrasound and cytological examination of fine-needle aspirates, indicated undifferentiated malignant neoplasia with metastasis. The cat was euthanized, and necropsy confirmed the diagnosis. This case was the first reported instance of feline paraneoplastic alopecia associated with colon carcinoma, highlighting the need to consider abdominal malignancies in cats with non-pruritic alopecia and systemic disease. The authors declared no financial support or conflicts of interest for their research, authorship, or publication.