title: Atypical presentation of sacrococcygeal yolk sac tumor in infant: beware of the injuries of the gluteal region.
abstract: Malignant sacrococcygeal yolk sac tumor is a rare extra-gonadal germ cell tumor of infancy and childhood. We report the case of a 14-month-old white female infant with a rapidly growing supra-gluteal mass at first misdiagnosed as hemangioma after a clinical assessment. The lesion was then classified as extra-gonadal yolk sac tumor due to alarming ultrasound features, later confirmed at MRI and pathology. This report remarks the need of a rigorous methodology in the ultrasound exploration of the gluteal region.
authors.affiliation: Dipartimento di Radiologia, Azienda Ospedaliera Pediatrica "Santobono-Pausilipon", Naples, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Esposito
authors.affiliation: Dipartimento di Radiologia, Azienda Ospedaliera Pediatrica "Santobono-Pausilipon", Naples, Italy ; U.O. Radiodiagnostica P.O. Santa Maria alla Gruccia Azienda USL8 Arezzo-zona Valdarno, p.zza del Volontariato 2, 52025 Montevarchi, AR Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Di Serafino
authors.affiliation: Dipartimento di Radiologia, Azienda Ospedaliera Pediatrica "Santobono-Pausilipon", Naples, Italy.
authors.forename: Patrizia
authors.initials: P
authors.lastname: Oresta
mesh_terms: D002081:Buttocks / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D018240:Endodermal Sinus Tumor / Q000097:blood / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000601:surgery; D005260:Female; D006391:Hemangioma / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D010386:Pelvic Neoplasms / Q000097:blood / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000601:surgery; D012445:Sacrococcygeal Region; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography / Q000379:methods
keywords: Germ cell tumor; Sacrococcygeal region; Ultrasoud; Yolk sac tumor