title: Imaging features of extrapulmonary small cell carcinoma.
abstract: Small cell carcinoma accounts for approximately 20% of lung cancers; however, it rarely occurs at other sites. Extrapulmonary small cell carcinoma (EPSCC) is notoriously aggressive with a strong propensity for both regional and distant spread. The majority of the literature on these uncommon tumours is from a clinicopathological viewpoint with a relative paucity of detail regarding the radiological findings. This review will focus on the imaging features of EPSCC in its predominant sites of origin: the gastrointestinal tract, genitourinary tract, head, neck, and breast. We will also discuss the role of positron-emission tomography (PET)/computed tomography (CT) in the staging of EPSCC.
authors.affiliation: Department of Radiology, St James's Hospital and Trinity College Dublin, Dublin, Ireland. joyceea@tcd.ie
authors.forename: E A
authors.initials: EA
authors.lastname: Joyce
authors.forename: J
authors.initials: J
authors.lastname: Kavanagh
authors.forename: N
authors.initials: N
authors.lastname: Sheehy
authors.forename: P
authors.initials: P
authors.lastname: Beddy
authors.forename: S A
authors.initials: SA
authors.lastname: O'Keeffe
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000175:diagnosis; D018288:Carcinoma, Small Cell / Q000175:diagnosis*; D003952:Diagnostic Imaging / Q000379:methods*; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis; D006258:Head and Neck Neoplasms / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D014565:Urogenital Neoplasms / Q000175:diagnosis; D055815:Young Adult