title: Spindle-cell carcinoma of the hypopharynx presenting with a pedunculated appearance: CT and MR features.
abstract: Spindle-cell carcinoma (SPCC) is a rare tumor that presents biphasic components: squamous-cell carcinoma and sarcomatous features without any differentiation. We present a case of SPCC of the hypopharynx in a 60-year-old man. A well-demarcated mass occupying the hypomesopharynx and presenting a pedunculated appearance was observed originating from the lateral wall of left piriform sinus. High signal intensity on T2-weighted magnetic resonance (MR) images corresponded to the myxoid matrix of the tumor on MR pathologic correlation.
authors.affiliation: Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
authors.forename: Masato
authors.initials: M
authors.lastname: Yonezawa
authors.forename: Hidetake
authors.initials: H
authors.lastname: Yabuuchi
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Matsuo
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kamitani
authors.forename: Hideki
authors.initials: H
authors.lastname: Shiratsuchi
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Yamamoto
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Honda
mesh_terms: D002277:Carcinoma / Q000000981:diagnostic imaging* / Q000473:pathology*; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed