title: Xp11 translocation renal cell carcinoma: delayed but massive and lethal metastases of a chemotherapy-associated secondary malignancy.
abstract: A recently described subtype of renal cell carcinoma (RCC) bearing chromosome translocations involving a breakpoint at Xp11 and resulting in gene fusions involving the TFE3 transcription factor gene often presents in the pediatric population. Herein we describe an Xp11 translocation RCC associated with prior exposure to cytotoxic chemotherapy, which massively recurred and led to the patient's death 17 years later. This case highlights the association of these RCCs with prior chemotherapy exposure, the tendency of these RCCs to recur late, their unusual pattern of metastases, and the utility of TFE3 immunohistochemistry in confirming their diagnosis in archival pathologic specimens.
authors.affiliation: Department of Pathology, The Johns Hopkins Medical Institutions, Baltimore, Maryland 21231, USA.
authors.forename: Soroush
authors.initials: S
authors.lastname: Rais-Bahrami
authors.forename: Joseph J
authors.initials: JJ
authors.lastname: Drabick
authors.forename: Angelo M
authors.initials: AM
authors.lastname: De Marzo
authors.forename: Jessica
authors.initials: J
authors.lastname: Hicks
authors.forename: Clement
authors.initials: C
authors.lastname: Ho
authors.forename: Alan E
authors.initials: AE
authors.lastname: Caroe
authors.forename: Pedram
authors.initials: P
authors.lastname: Argani
mesh_terms: D000293:Adolescent; D002292:Carcinoma, Renal Cell / Q000235:genetics* / Q000556:secondary*; D017809:Fatal Outcome; D006801:Humans; D007680:Kidney Neoplasms / Q000235:genetics* / Q000556:secondary*; D008297:Male; D016609:Neoplasms, Second Primary / Q000235:genetics*; D018242:Neuroectodermal Tumors, Primitive / Q000188:drug therapy*; D035441:Thoracic Wall; D014178:Translocation, Genetic