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Ovarian Lesions in Carney Complex: Clinical Genetics and Possible Predisposition to Malignancy

Unit on Genetics and Endocrinology, Developmental Endocrinology Branch, National Institute of Child Health and Human Development (C.A.S., T.P., L.S.K., S.E.T.); Department of Diagnostic Radiology, Warren Magnuson Clinical Center (A.P.); and Laboratory of Pathology, National Cancer Institute (S.P., Z.Z.), National Institutes of Health, Bethesda, Maryland 20892; Department of Endocrinology, Free University of Berlin (W.H.O.), D-12200 Berlin, Germany; and Department of Laboratory Medicine and Pathology, Mayo Clinic (J.A.C.), Rochester, Minnesota 55905

Address all correspondence and requests for reprints to: Constantine A. Stratakis, M.D., D.Sc., Unit on Genetics and Endocrinology, Developmental Endocrinology Branch, National Institute of Child Health and Human Development, National Institutes of Health, Building 10, Room 10N262, 10 Center Drive, MSC1862, Bethesda, Maryland 20892-1862. E-mail: stratakc{at}cc1.nichd.nih.gov

Carney complex (CNC) is a familial multiple neoplasia and lentiginosis syndrome (OMIM 160980, http://www.ncbi.nlm.nih.gov/omim) with features overlapping those of other multiple endocrine neoplasias and hamartomatoses, Peutz-Jeghers syndrome (PJS) in particular. Although a number of patients with CNC and ovarian tumors have been described in individual patient reports, it is unclear whether ovarian lesions constitute a component of the syndrome or are coincidental events. We investigated 18 women with CNC [age at first evaluation, 31.3 ± 12.1 yr (mean ± SD)] prospectively for the development of ovarian tumors over a period of 35.7 ± 30.6 months by physical examination and pelvic ultrasonography. They were compared with 11 women (age at first evaluation, 32.9 ± 17 yr) who were enrolled under the same protocol (follow up, 32.3 ± 25.1 months) and served as a control group. In addition, a registry of 178 women from among a total of 309 patients with CNC was searched retrospectively for any having ovarian tumors. Seven available histological specimens were rereviewed. None of the CNC patients had ovarian tumors analogous to those of PJS. Two patients with CNC in the prospective group developed ovarian tumors and were operated upon. One had bilateral oophorectomy for asynchronous serous cystadenomas. The second patient had a unilateral serous cystadenoma. Resected tumor tissue from both patients was tested for genetic abnormalities of the chromosomal regions to which CNC genetic loci have been mapped. Both showed genomic amplification of chromosomal region 2p16. An additional 10 patients had at least 1 sonogram positive for ovarian cysts. Only 1 of the patients in the control group was found to have a persistent, simple ovarian cyst by ultrasonography. The registry of 178 CNC patients included 4 who had undergone surgery for ovarian tumors. The diagnoses included endometrioid adenocarcinoma (1 patient) and metastatic mucinous adenocarcinoma (the primary site was probably ovarian; 1 patient). In addition, 7 of 12 patients (58%) with CNC, who died of other causes, had ovarian lesions at autopsy. In conclusion, although the same stromal tumor, large-cell calcifying Sertoli cell tumor, affects the testes in CNC and PJS, we did not find such tumors in a small population of CNC patients that was studied prospectively or a larger group of CNC patients that was studied retrospectively. The results of our study also suggested that women with CNC commonly develop ovarian cysts and may be at risk for ovarian carcinoma. The chromosome 2p16 CNC locus was involved in ovarian pathology with apparent copy number gain, suggesting that at least molecularly there is some involvement of the CNC gene(s) in these lesions. Although ovarian tumors do not seem to be a major manifestation of CNC, sonography of the ovaries may be part of the initial evaluation for this genetic syndrome in women with CNC; follow-up of any identified lesion is recommended because of the possible risk for malignancy.

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