title: Giant epithelial cyst of the accessory spleen.
abstract: Splenic cysts are uncommon, and cysts derived from the accessory spleen are rare. We report a case of a huge splenic cyst derived from the accessory spleen in the omentum, concomitant with multiple epithelial cysts of the primary spleen. Both serum and cystic fluid concentrations of carbohydrate antigen (CA)19-9 were markedly elevated. A huge monolocular cyst occupied the entire abdomen. A total of 71 of aspirated cystic fluid was turbid and yellowish-brown. The cyst wall, which consisted of CA19-9-positive squamous epithelium, contained approximately 2 x 3 x 1cm of splenic tissue. There was a separate multicystic 16 x 8-cm spleen in the normal position. The CA19-9 serum level returned to normal postoperatively.
authors.affiliation: Department of Medicine, Teikyo University School of Medicine, Tokyo, Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Mori
authors.forename: Taro
authors.initials: T
authors.lastname: Ishii
authors.forename: Toru
authors.initials: T
authors.lastname: Iida
authors.forename: Fumihiko
authors.initials: F
authors.lastname: Tanaka
authors.forename: Hajime
authors.initials: H
authors.lastname: Takikawa
authors.forename: Kota
authors.initials: K
authors.lastname: Okinaga
mesh_terms: D000328:Adult; D018395:CA-19-9 Antigen / Q000032:analysis; D003560:Cysts / Q000601:surgery*; D006801:Humans; D008297:Male; D009852:Omentum / Q000002:abnormalities; D013154:Spleen / Q000002:abnormalities*; D013158:Splenic Diseases / Q000378:metabolism / Q000601:surgery*
chemical_list: D018395:CA-19-9 Antigen