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Dermatology Online Journal

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Kindler syndrome in a patient with colitis and primary sclerosing cholangitis: coincidence or association?


Kindler syndrome is a rare, autosomal recessive genodermatosis, caused by mutations in the FERMT1 gene. It is thought to be primarily a skin disease, but other organs may also be involved. We report a case of a novel mutation of FERMT1 gene in a patient with a probable new phenotype of Kindler syndrome, including colitis and primary sclerosing cholangitis. A 42-year-old man, born to first cousin parents, was referred to our outpatient dermatology clinic with an unknown dermatosis since birth. He presented with neonatal blistering and developed photosensitivity and changes in skin pigmentation during childhood. Since the age of 20, he has had regular follow-up in the gastroenterology clinic, owing to esophageal stenosis, ulcerative colitis, and primary sclerosing cholangitis. Clinical examination revealed jaundice, poikiloderma, diffuse cigarette paper-like atrophy on dorsal surfaces of the hands, and palmoplantar hyperkeratosis. Skin biopsy showed epidermal atrophy covered by orthokeratotic hyperkeratosis. DNA molecular analysis revealed FERMT1 homozygous mutation c.1179G>A, p.W393X, which has not been reported before. The intestinal phenotype of Kindler syndrome has already been defined previously. However, to the best of our knowledge, no other case of primary sclerosing cholangitis in a patient with Kindler syndrome has been reported.

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