Lee D, Mo JW, Yoon S, Kwon J, Jo Y, Lee SI, Kwon T, Kwon J, Kim J. Subcutaneous leiomyosarcoma in a cynomolgus macaque (Macaca fascicularis).
Vet Med Sci 2024;
10:e1321. [PMID:
38227706 PMCID:
PMC10790726 DOI:
10.1002/vms3.1321]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 10/05/2023] [Accepted: 11/06/2023] [Indexed: 01/18/2024] Open
Abstract
Leiomyosarcoma, a malignant tumour originating from smooth muscle cells, has rarely been documented in non-human primates. In this case study, a 7-year-old female cynomolgus macaque (Macaca fascicularis) presented with a rapidly growing mass overlying the left elbow joint. Radiographs indicated the presence of a soft tissue neoplasm without any associated bone involvement. The mass was surgically resected. Histological and immunohistochemical analyses revealed spindle-shaped cells with eosinophilic cytoplasm that resembled smooth muscle cells, exhibiting positive immunoreactions for vimentin, desmin and smooth muscle actin and a negative reaction for pan-cytokeratin. This is the first reported case of subcutaneous leiomyosarcoma in a cynomolgus macaque and provides important insights into the incidence and characteristics of this condition in this species.
Collapse