title: Granulosa cell tumor arising in the wall of müllerian cyst of the broad ligament: report of a case and immunohistochemical study.
abstract: METHODS
  A unique case of granulosa cell tumor arising in a müllerian cyst of the broad ligament in a 57-year-old woman is presented. The surgically resected unilocular cyst, measuring 9.5 x 9.5 x 6.5 cm3, situated within the right broad ligament. The inner surface of the cyst was lined by a single layer of ciliated columnar cells. Solid cell sheath of the spindled cells were demonstrated in this cystic wall. Immunohistochemically, these spindled cells were diffusely positive for cytokeratin 7, AE1/AE3, vimentin, smooth muscle actin, calretinin and weakly positive for inhibin, but negative for cytokeratin 20, epithelial membrane antigen and CD10.
  
  
  CONCLUSIONS
  Immunohistochemical findings suggested solid cell sheath surrounding the cyst was granulosa cell tumor. Granulosa cell tumor coexisted with müllerian cyst in the current case was recognized a unique histological feature.
authors.affiliation: Department of Pathology, Japan Self Defense Forces Sapporo General Hospital, 12-1-32 Hiragishi 1 Jo, Sapporo, Hokkaido 062-0931, Japan. ZWQ04043@nifty.ne.jp
authors.forename: Yu
authors.initials: Y
authors.lastname: Sakai
mesh_terms: D001956:Broad Ligament; D003560:Cysts / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006106:Granulosa Cell Tumor / Q000473:pathology*; D006801:Humans; D033162:Incidental Findings; D008875:Middle Aged; D012811:Sigmoid Neoplasms / Q000601:surgery; D014594:Uterine Neoplasms / Q000473:pathology*