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Hypomelanosis of Ito: a case report with clinical and ultrastructural data
Author(s) -
Cellini Andreina,
Morroni Manrico,
Simonetti Oriana,
Offidani Annamaria
Publication year - 1998
Publication title -
journal of the european academy of dermatology and venereology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.655
H-Index - 107
eISSN - 1468-3083
pISSN - 0926-9959
DOI - 10.1111/j.1468-3083.1998.tb00933.x
Subject(s) - medicine , melanosome , scoliosis , pigmentation disorder , dermatology , pathology , anatomy , melanin , surgery , biology , genetics
Hypomelanosis of Ito (HI) is an uncommon skin disorder characterized by the presence of hypochromic areas associated with visceral abnormalities, the most common being neurological, muscular, skeletal and ocular. The authors describe a typical case of hypomelanosis of Ito in a 7‐year‐old child. The patient was obese, suffered from scoliosis, flat feet and had a bilateral genu valgus. No neurological, ophthalmological or dental malformations were noted. An electron microscopic study of a hypomelanotic area showed decreased functional activity in the melanocytes, which contained only a few rudimentary cytoplasmatic projections and poorly developed organelles. In addition, there was a reduction in the number of mature melanosomes.