title: Typical carcinoid arising in mature teratoma of anterior mediastinum.
abstract: Teratoma is the second most common mediastinal neoplasm, but malignant transformation in mature teratomas is uncommon at both gonadal and extragonadal sites. A 35-year-old woman presented with an anterior mediastinal mass. Computed tomography suggested a teratoma. Meticulous pathological examination helped in detecting a neuroendocrine neoplasm (carcinoid) within the mature teratoma. Malignant transformation in a teratoma is difficult to diagnose on clinical and radiological assessment; histopathology is essential to detect the malignant nature of these neoplasms.
authors.affiliation: Department of Pathology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India. pallavkmc1@gmail.com
authors.forename: Pallav
authors.initials: P
authors.lastname: Gupta
authors.forename: Shubhra
authors.initials: S
authors.lastname: Singh
authors.forename: Kamlesh
authors.initials: K
authors.lastname: Yadava
authors.forename: Niraj
authors.initials: N
authors.lastname: Kumari
mesh_terms: D000328:Adult; D002276:Carcinoid Tumor / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D005260:Female; D006801:Humans; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D008482:Mediastinum / Q000473:pathology; D016609:Neoplasms, Second Primary / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D013724:Teratoma / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed