Novel FH mutation in a patient with cutaneous leiomyomatosis associated with cutis verticis gyrata, eruptive collagenoma and Charcot-Marie-Tooth disease.

Multiple cutaneous and uterine leiomyomatosis (MCUL)/hereditary leiomyomatosis and renal cell cancer (HLRCC) (OMIM 150800/OMIM 605839) is a rare hereditary disorder leading to the development of benign cutaneous and uterine smooth muscle tumours in young adults.(1,2) This disease is characterized by an increased risk of developing renal cell carcinomas.(3) It results from dominantly inherited autosomal mutations in the fumarate hydratase (FH) gene.(4) This gene encodes a Krebs cycle enzyme, present in both cytosolic and mitochondrial compartments, and probably acts as a tumour suppressor gene. We report a 22-year-old man affected by cutaneous leiomyomatosis associated with cutis verticis gyrata, disseminated collagenoma and Charcot-Marie-Tooth disease, who was harbouring the novel FH gene mutation c.821C > T, p.Ala274Val.