Cutaneous leiomyosarcoma with visceral metastases in a White Carneau pigeon and literature review.

ABSTRACT: Cutaneous leiomyosarcomas are malignant mesenchymal tumors of smooth muscle origin and are reported occasionally in avian species. A 14-y-old male laboratory White Carneau pigeon (Columba livia) was presented for surgical excision of a cervical soft tissue mass. Ultrasonography with color flow Doppler imaging revealed multiple cavitations of mixed echogenicity within the mass and vascularization. Histologically, the dermis and subcutis were expanded by a densely cellular multinodular mass comprised of fusiform cells forming haphazardly arranged broad streams and short interwoven bundles, often surrounding blood vessels and variably sized cavitations. Neoplastic cells were strongly immunopositive for desmin and α-smooth muscle actin, and negative for pancytokeratin, S100, and von Wil

SUBMITTER: Fabian NJ 

PROVIDER: S-EPMC8120085 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature