Hereditary leiomyomatosis and renal cell carcinoma

Hereditary leiomyomatosis and renal cell carcinoma (HLRCC) is rare disorder associated with benign smooth muscle tumors and an increased risk of renal cell carcinoma. Hereditary leiomyomatosis and renal cell carcinoma (HLRCC) is rare disorder associated with benign smooth muscle tumors and an increased risk of renal cell carcinoma. HLRCC is an autosomal dominant condition caused by a mutation in the FH gene, which results in dysfunction of the citric acid cycle, leading to an accumulation of fumarate. People affected with HLRCC develop leiomyomas, smooth muscle growths or tumors, in the skin (most often in the extremities, trunk, and face) and uterus. These growths increase in size and number throughout the lifetime. People with HLRCC have an approximately 15% chance of developing renal cell carcinoma in their lifetime. This is most commonly type II papillary renal cell carcinoma which is an aggressive form. Leiomyomas do not typically require treatment unless they cause pain. HLRCC affects males and females equally. Thus far, HLRCC has been found in 300 families worldwide.