From OMIMTumor predisposition syndrome-1 (TPDS1) is inherited in an autosomal dominant pattern. Individuals carrying heterozygous BAP1 mutations are at high-risk for the development of a variety of tumors, including benign melanocytic tumors as well as several malignant tumors, including uveal melanoma (155720), cutaneous melanoma (155600), malignant mesothelioma on exposure to asbestos (156240), and other cancer types, such as lung adenocarcinoma, meningioma, and renal cell carcinoma (summary by Wiesner et al., 2011, Testa et al., 2011, Abdel-Rahman et al., 2011, and Popova et al., 2013).
Genetic Heterogeneity of Tumor Predisposition Syndrome
See also TPDS2 (619975), caused by mutation in the MBD4 gene (603574) on chromosome 3q21; TPDS3 (615848), caused by mutation in the POT1 gene (606478) on chromosome 7q31; and TPDS4 (609265), caused by mutation in the CHEK2 gene (604373) on chromosome 22q12.
http://www.omim.org/entry/614327 From MedlinePlus GeneticsBAP1 tumor predisposition syndrome is an inherited disorder that increases the risk of a variety of cancerous (malignant) and noncancerous (benign) tumors, most commonly certain types of tumors that occur in the skin, eyes, kidneys, and the tissue that lines the chest, abdomen, and the outer surface of the internal organs (the mesothelium). Affected individuals can develop one or more types of tumor, and affected members of the same family can have different types.
Some people with BAP1 tumor predisposition syndrome develop growths in the skin known as atypical Spitz tumors. People with this syndrome may have more than one of these tumors, and they can have dozens. Atypical Spitz tumors are generally considered benign, although it is unclear if they can become cancerous. Skin cancers are also associated with BAP1 tumor predisposition syndrome, including cutaneous melanoma and basal cell carcinoma.
A type of eye cancer called uveal melanoma is the most common cancerous tumor in BAP1 tumor predisposition syndrome. Although uveal melanoma does not usually cause any symptoms, some people with this type of cancer have blurred vision; small, moving dots (floaters) or flashes of light in their vision; headaches; or a visible dark spot on the eye.
People with BAP1 tumor predisposition syndrome are at risk of developing malignant mesothelioma, which is cancer of the mesothelium. When associated with BAP1 tumor predisposition syndrome, malignant mesothelioma most often occurs in the membrane that lines the abdomen and covers the abdominal organs (the peritoneum). It less commonly occurs in the outer covering of the lungs (the pleura).
A form of kidney cancer called clear cell renal cell carcinoma is also associated with the condition. Researchers are still determining whether other forms of cancer are linked to BAP1 tumor predisposition syndrome.
When they occur in people with BAP1 tumor predisposition syndrome, cancers tend to arise at a younger age and are often more aggressive than cancers in the general population. The cancerous tumors in BAP1 tumor predisposition syndrome tend to spread (metastasize) to other parts of the body. Survival of affected individuals with this syndrome is usually shorter than in other people who have one of these cancers. However, individuals with malignant mesothelioma as part of the BAP1 tumor predisposition syndrome appear to survive longer than those who have the cancer without the syndrome.
https://medlineplus.gov/genetics/condition/bap1-tumor-predisposition-syndrome