title: BAP1 hereditary cancer predisposition syndrome: a case report and review of literature.
abstract: A 72-year-old woman was diagnosed with uveal melanoma, peritoneal mesothelioma and a primary biliary tract adenocarcinoma. She had a strong family history of mesothelioma as well as other malignancies including renal cell carcinoma. The recently described BAP1 hereditary cancer predisposition syndrome was suspected, but immunohistochemical labeling was not conclusive. Genetic testing confirmed a novel and unusual germline mutation in the ubiquitin hydrolase domain of the BAP1 gene (p.Tyr173Cys) and the patient was diagnosed with the BAP1 hereditary cancer predisposition syndrome. This case demonstrates the importance of clinically recognizing this rare syndrome and its manifestations, some which are still being characterized. It also highlights the importance of genetic testing in cases where there is a high clinical suspicion, even when screening tests, such as immunohistochemistry, in this case, are inconclusive. The diagnosis of a germline BAP1 mutation may have important implications for both the patient and their families with regards to further genetic testing and active surveillance programs. Further research is needed to fully understand the extent and clinical implications of this rare cancer syndrome.
authors.affiliation: Department of Anatomical Pathology, Flinders Medical Centre and Flinders University, Bedford Park, SA 5042 UK.
authors.forename: Sonja
authors.initials: S
authors.lastname: Klebe
authors.affiliation: Department of Anatomical Pathology, Flinders Medical Centre and Flinders University, Bedford Park, SA 5042 UK.
authors.forename: Jack
authors.initials: J
authors.lastname: Driml
authors.affiliation: University of Hawaii Cancer Center, 701 Ilalo Street, Bldg A-4R, Rm 450, Honolulu, HI 96813 USA.
authors.forename: Masaki
authors.initials: M
authors.lastname: Nasu
authors.affiliation: University of Hawaii Cancer Center, 701 Ilalo Street, Bldg A-4R, Rm 450, Honolulu, HI 96813 USA.
authors.forename: Sandra
authors.initials: S
authors.lastname: Pastorino
authors.affiliation: Department of Respiratory and Sleep Medicine, Flinders Medical Centre, Bedford Park, SA 5042 UK.
authors.forename: Amirmasoud
authors.initials: A
authors.lastname: Zangiabadi
authors.affiliation: Department of Anatomical Pathology, Flinders Medical Centre and Flinders University, Bedford Park, SA 5042 UK.
authors.forename: Douglas
authors.initials: D
authors.lastname: Henderson
authors.affiliation: University of Hawaii Cancer Center, 701 Ilalo Street, Bldg A-4R, Rm 450, Honolulu, HI 96813 USA.
authors.forename: Michele
authors.initials: M
authors.lastname: Carbone
keywords: BAP1 hereditary cancer predisposition syndrome; Melanoma; Mesothelioma