title: Metastatic seminoma in the duodenum: diagnosis with endoscopy followed by successful treatment.
abstract: Seminomas rarely metastasize to the gastrointestinal tract. In general, these lesions metastasize to the lungs or retroperitoneal lymph nodes. A 34-year-old Japanese man who had undergone orchiectomy for seminoma two years earlier experienced shortness of breath and tarry stools. The patient presented at our hospital and was diagnosed with metastatic seminoma to the third portion of the duodenum on double balloon endoscopy. He was effectively treated with chemotherapy and continues to progress well, with no episodes of recurrence.
authors.affiliation: Department of Gastroenterology, Juntendo University School of Medicine, Japan.
authors.forename: Maki
authors.initials: M
authors.lastname: Morinaga
authors.forename: Taro
authors.initials: T
authors.lastname: Osada
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Kon
authors.forename: Junko
authors.initials: J
authors.lastname: Kato
authors.forename: Masae
authors.initials: M
authors.lastname: Konishi
authors.forename: Tomoyoshi
authors.initials: T
authors.lastname: Shibuya
authors.forename: Naoto
authors.initials: N
authors.lastname: Sakamoto
authors.forename: Akihito
authors.initials: A
authors.lastname: Nagahara
authors.forename: Takashi
authors.initials: T
authors.lastname: Yao
authors.forename: Makoto
authors.initials: M
authors.lastname: Fujime
authors.forename: Sumio
authors.initials: S
authors.lastname: Watanabe
mesh_terms: D000328:Adult; D004379:Duodenal Neoplasms / Q000556:secondary* / Q000601:surgery*; D004386:Duodenum / Q000473:pathology*; D016145:Endoscopy, Digestive System; D006801:Humans; D008297:Male; D009919:Orchiectomy; D018239:Seminoma / Q000473:pathology* / Q000556:secondary*; D013736:Testicular Neoplasms / Q000473:pathology / Q000601:surgery