Rino Buzzola1, Lilamani Romayne Kurukulasuriya1, Mariana Touza1, Norman S Litofsky2, Stephen Brietzke1, James R Sowers3. 1. Diabetes and Cardiovascular Center, University of Missouri, Mo., USA. 2. Neurosurgery, University of Missouri, Mo., USA. 3. Diabetes and Cardiovascular Center, University of Missouri, Mo., USA; Departments of Medicine and Physiology, University of Missouri, Mo., USA; Harry S. Truman VA Hospital, Columbia, Mo., USA.
Abstract
BACKGROUND: Multiple endocrine neoplasia (MEN) type 1 syndrome is an uncommon inherited disorder characterized by the occurrence of tumors involving two or more endocrine glands. These tumors include pheochromocytoma, adrenal cortical and neuroendocrine tumors including (bronchopulmonary, thymic, gastric), lipomas, angiofibromas, collagenomas, and meningiomas. MEN-4 is very rare and has been characterized by the occurrence of parathyroid and anterior pituitary tumors in association with tumors of the adrenals, kidneys, and reproductive organs. SUMMARY: We report the case of a 40-year-old male without significant family history of endocrine disease who was found to have primary hyperparathyroidism, a pituitary tumor causing acromegaly, thyroid cancer, renal cell carcinoma, and pancreatic cysts. We posit that this represents a new version of MEN-4. While renal tumors (angiomyolipoma) have been reported as part of the MEN-4 phenotype, to our knowledge, this is the first case reported of the association of MEN-1 and/or MEN-4 phenotype with this unique constellation of tumors, including renal cell carcinoma. Interestingly, this patient tested negative (DNA sequencing/deletion) for MEN-1 (menin), MEN-4 (CDKN1B) and VHL genes. KEY MESSAGE: Thus, while this case has clinical characteristics consistent with either MEN-1 or MEN-4, it may represent a unique genetic variant.
BACKGROUND:Multiple endocrine neoplasia (MEN) type 1 syndrome is an uncommon inherited disorder characterized by the occurrence of tumors involving two or more endocrine glands. These tumors include pheochromocytoma, adrenal cortical and neuroendocrine tumors including (bronchopulmonary, thymic, gastric), lipomas, angiofibromas, collagenomas, and meningiomas. MEN-4 is very rare and has been characterized by the occurrence of parathyroid and anterior pituitary tumors in association with tumors of the adrenals, kidneys, and reproductive organs. SUMMARY: We report the case of a 40-year-old male without significant family history of endocrine disease who was found to have primary hyperparathyroidism, a pituitary tumor causing acromegaly, thyroid cancer, renal cell carcinoma, and pancreatic cysts. We posit that this represents a new version of MEN-4. While renal tumors (angiomyolipoma) have been reported as part of the MEN-4 phenotype, to our knowledge, this is the first case reported of the association of MEN-1 and/or MEN-4 phenotype with this unique constellation of tumors, including renal cell carcinoma. Interestingly, this patient tested negative (DNA sequencing/deletion) for MEN-1 (menin), MEN-4 (CDKN1B) and VHL genes. KEY MESSAGE: Thus, while this case has clinical characteristics consistent with either MEN-1 or MEN-4, it may represent a unique genetic variant.
Entities:
Keywords:
Acromegaly; Hyperparathyroidism; Multiple endocrine neoplasia; Mutation and tumor
Authors: Jens Waldmann; Volker Fendrich; Nils Habbe; Detlef K Bartsch; Emily P Slater; Peter H Kann; Matthias Rothmund; Peter Langer Journal: World J Surg Date: 2009-06 Impact factor: 3.352
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