title: [A Case of Retroperitoneal Lymphangioma that Was Difficult to Differentiate from Pancreatic Tumor].
abstract: We report a rare case of retroperitoneal lymphangioma that was difficult to differentiate from pancreatic tumor. The patient was a 38-year-old woman. In June 2011, CT detected a pancreatic tail tumor. She was expected to undergo radical surgery and was referred to our hospital. The tumor was 55×43×40 mm in size and was described as a multilocular cystic lesion with a partition on CT. MRI demonstrated the tumor as a high-intensity area on T2-weighted images. Sonazoid-enhanced US showed a contrast effect of the partition wall. Therefore, the lesion was diagnosed as a mucinous cystic neoplasm, and the patient underwent surgery. Intraoperatively, the tumor was a white multilocular cystic lesion with a capsule. The cystic lesion was exfoliated from the pancreatic parenchyma. Histologically, the tumor was diagnosed as a cavernous lymphangioma without malignancy. The surgery achieved good progress and the patient was discharged 12 days postoperatively. She is attending our clinic without any recurrence.
authors.affiliation: Division of Digestive Surgery, Dept. of Surgery, Kyoto Prefectural University of Medicine.
authors.forename: Takuma
authors.initials: T
authors.lastname: Ohashi
authors.forename: Hisashi
authors.initials: H
authors.lastname: Ikoma
authors.forename: Shuhei
authors.initials: S
authors.lastname: Komatsu
authors.forename: Ryo
authors.initials: R
authors.lastname: Morimura
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Kosuga
authors.forename: Hirotaka
authors.initials: H
authors.lastname: Konishi
authors.forename: Yasutoshi
authors.initials: Y
authors.lastname: Murayama
authors.forename: Atsushi
authors.initials: A
authors.lastname: Shiozaki
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Kuriu
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Nakanishi
authors.forename: Daisuke
authors.initials: D
authors.lastname: Ichikawa
authors.forename: Kazuma
authors.initials: K
authors.lastname: Okamoto
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Fujiwara
authors.forename: Toshiya
authors.initials: T
authors.lastname: Ochiai
authors.forename: Eigo
authors.initials: E
authors.lastname: Otsuji
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008202:Lymphangioma / Q000175:diagnosis* / Q000209:etiology; D008279:Magnetic Resonance Imaging; D064847:Multimodal Imaging; D010190:Pancreatic Neoplasms / Q000150:complications* / Q000473:pathology / Q000601:surgery; D011379:Prognosis; D012187:Retroperitoneal Space / Q000473:pathology*; D014057:Tomography, X-Ray Computed