title: Second branchial cleft cyst with "cyst-within-cyst" appearance.
abstract: A 68-year-old female consulted our hospital, complaining of a large mass on the left side of the neck. Computed tomography and magnetic resonance imaging revealed the characteristic internal architecture of the mass, in which a small cyst was located within a cystic mass, showing a "cyst-within-cyst" appearance. A final diagnosis of second branchial cleft cyst was made pathologically. A "cyst-within-cyst" appearance is not usually seen in a second branchial cleft cyst. This appearance may be attributed to several fine-needle aspiration biopsies for diagnostic purposes.
authors.affiliation: Department of Radiology, International Medical Center of Japan, Tokyo, Japan. taro-s@mte.biglobe.ne.jp
authors.forename: Taro
authors.initials: T
authors.lastname: Setoguchi
authors.forename: Kanehiro
authors.initials: K
authors.lastname: Hasuo
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Shida
authors.forename: Masaki
authors.initials: M
authors.lastname: Nishimiya
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Aibe
authors.forename: Toaki
authors.initials: T
authors.lastname: Ono
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Saito
mesh_terms: D000368:Aged; D003560:Cysts / Q000151:congenital* / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009333:Neck / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed