title: Isolated Pituitary Stalk Relapse of Primary Penile Lymphoma.
abstract: A 76-year-old Japanese man was admitted to our hospital because of the occurrence of multiple nodules on the shaft of his penis. He was diagnosed with diffuse large B cell lymphoma (DLBCL). His lymphoma was located only in his penis. He received immunochemotherapy and involved-field radiotherapy, and achieved complete response (CR). About two years later, he complained of a poor appetite. Magnetic resonance imaging showed a mass lesion in the pituitary stalk. Biopsy of this mass revealed the recurrence of DLBCL. He received whole-brain radiotherapy, and achieved CR. This is the first case of an isolated pituitary stalk relapse of primary penile lymphoma.
authors.affiliation: Department of Hematology and Clinical Immunology, Nishi-Kobe Medical Center, Japan.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Atsushi
authors.initials: A
authors.lastname: Tanaka
authors.forename: Akiko
authors.initials: A
authors.lastname: Hashimoto
authors.forename: Isaku
authors.initials: I
authors.lastname: Shinzato
mesh_terms: D000368:Aged; D001706:Biopsy; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D010412:Penile Neoplasms / Q000473:pathology*; D010902:Pituitary Gland / Q000473:pathology*; D010911:Pituitary Neoplasms / Q000556:secondary*; D012008:Recurrence