Kasahara K, Yamakawa S, Nagatani M, Tsurukame M, Tamura K. Spontaneous leiomyosarcoma arising from the ethmoid turbinate of a rat.
Toxicol Pathol 2008;
36:247-9. [PMID:
18474945 DOI:
10.1177/0192623307312692]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Spontaneous leiomyosarcoma arising from the left ethmoid turbinate was observed microscopically in an 83-week-old male F344 rat. The tumor cells showed smooth-muscle differentiation with prominent nuclear pleomorphism and a small number of mitotic figures. The tumor cells were also immunohistochemically positive for smooth-muscle actin. The tumor protruded slightly into the nasal cavity and invaded the surrounding tissues. The present article is the first case of spontaneous leiomyosarcoma in the rat nasal cavity.
Collapse