title: Nasal teratocarcinosarcoma - a case report.
abstract: A 79-year-old man noticed nasal obstruction and bleeding caused by a pedunculated tumor in the left nasal cavity. The tumor revealed a malignant neoplasm predominantly composed of immature neuroepithelial cells with rosettes and palisading patterns, rhabdomyoblastic cells with positivity for desmin and cross-striations, and immature mucin-producing glandular cells. Small amounts of mature chondroid tissue and neurofibrillary matrix were also present. Therefore, the tumor was diagnosed as nasal teratocarcinosarcoma.
authors.affiliation: Department of Pathology, Mito Saiseikai General Hospital, 3-3-10 Futabadai, Mito, Ibaraki 311-4198, Japan. oka-k@gb3.so-net.ne.jp
authors.forename: Kuniyuki
authors.initials: K
authors.lastname: Oka
authors.forename: Ryoji
authors.initials: R
authors.lastname: Kanayama
authors.forename: Masaharu
authors.initials: M
authors.lastname: Fukunaga
authors.forename: Masahiko
authors.initials: M
authors.lastname: Fukazawa
authors.forename: Atsushi
authors.initials: A
authors.lastname: Okamoto
authors.forename: Takao
authors.initials: T
authors.lastname: Oikawa
authors.forename: Hando
authors.initials: H
authors.lastname: Hakozaki
mesh_terms: D000368:Aged; D002296:Carcinosarcoma / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D008297:Male; D009296:Nasal Cavity / Q000473:pathology*; D009669:Nose Neoplasms / Q000378:metabolism / Q000473:pathology*; D018243:Teratocarcinoma / Q000378:metabolism / Q000473:pathology*