[Lisch nodule in neurofibromatosis type 1]

Neurofibromatosis type 1 (NF1) or Von Recklinghausen disease manifests as cutaneous café-au-lait spots and neurofibromas. It is one of the most common autosomal dominant genetic diseases. It is extremely variable in its individual manifestation. Cutaneous and neurologic symptoms are the most common manifestations but it can also affect other organs including eyes, bones and other areas. Lisch nodules are the most common ocular manifestations in NF-1. They are asymptomatic small pigmented iris tumors (iris hamartomas) which can help suggest the diagnosis of NF1 as they are characteristic of this disease and mostly occur in adult patients. We report the case of a 45-year old female patient followed for a neurofibromatosis type 1 retained on the presence of multiple cutaneous café-au-lait spots and neurofibromas. Ophthalmologic examination showed visual acuity of 10/10 P3 in both eyes. Biomicroscopic examination showed Lisch nodules of the iris in both eyes (A,B).