title: Biliary cystadenomas: hormone receptor expression and clinical management.
abstract: Biliary cystadenomas with mesenchymal stroma are neoplasms whose growth may be hormone sensitive. This study profiled the immunohistochemistry of these lesions to clarify the pathophysiology and define clinical management. Twelve patients with biliary cystadenomas were identified. Tissue was tested with a panel of probes including estrogen and progesterone receptors and compared to pancreatic and ovarian cystadenomas. Epithelial ER, PR, CD117, or SMA expression was negative in all three tumors. Epithelial CD10 expression was seen in 60% biliary, 75% pancreatic, and 0% ovarian tumors. Biliary cystadenoma stromal expression was ER+ (70%), PR+ (60%), CD10+ (40%), and c-kit+ (0%). Symptoms were seen in 92% patients. Percutaneous sclerotherapy and incomplete resection were associated with recurrence. Enucleation was the least morbid surgical technique. A role for hormonally mediated growth of biliary cystadenomas occurring through the stroma, rather than the epithelium, is suggested. Management remains complete surgical resection.
authors.affiliation: Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, Minnesota, USA.
authors.forename: Jason A
authors.initials: JA
authors.lastname: Daniels
authors.forename: James E
authors.initials: JE
authors.lastname: Coad
authors.forename: William D
authors.initials: WD
authors.lastname: Payne
authors.forename: Kambiz
authors.initials: K
authors.lastname: Kosari
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Sielaff
mesh_terms: D000328:Adult; D000368:Aged; D001661:Biliary Tract Neoplasms / Q000473:pathology* / Q000601:surgery; D014408:Biomarkers, Tumor / Q000032:analysis; D001707:Biopsy, Needle; D015331:Cohort Studies; D003537:Cystadenoma / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000175:diagnosis / Q000473:pathology*; D010190:Pancreatic Neoplasms / Q000175:diagnosis / Q000473:pathology*; D011960:Receptors, Estrogen / Q000032:analysis*; D011980:Receptors, Progesterone / Q000032:analysis*; D012189:Retrospective Studies; D018570:Risk Assessment; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D014408:Biomarkers, Tumor; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone