This case report highlights the successful management of cutaneous lymphangiosarcoma in an 11‐year‐old, female spayed, domestic longhair cat with surgical resection alone. A 2.0 cm × 1.5 cm, compressible, erythematous, alopecic dermal plaque located on the caudoventral abdomen with associated subcutaneous thickening was cytologically examined, revealing abundant small lymphocytes and a low number of large mesenchymal cells. A definitive diagnosis could not be made based on cytology; therefore, biopsy with histopathology was performed and was consistent with cutaneous lymphangiosarcoma. Complete clinical remission was achieved with curative intent surgical excision. This rare malignant neoplasm of the lymphatic endothelium carries a poor prognosis with rapid progression of disease even after surgical resection. Early diagnosis and aggressive surgical intervention likely resulted in the good outcome in this case.
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