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Cutis tricolor coexistent with cutis marmorata telangiectatica congenita: "phacomatosis achromico-melano-marmorata".

C Boente MD, Obeid R, Asial RA, Bibas-Bonet H, Coronel AM, Happle R

Department of Dermatology, Hospital del Niño Jesús, Pasaje Bertrés 224, SM de Tucumán, 4000, Argentina. mboente@arnet.com.ar.

An 8-year-old mentally retarded boy had paired segmental areas of hyper- and hypopigmentation on the left side of his body in association with cutis marmorata telangiectatica congenita (CMTC) involving the trunk and the limbs, with the exception of parts of his right arm. At the age of 4 years, an aneurysmatic nodular lesion developed in the angle of his right elbow, and subsequently two similar lesions emerged on his forehead and scalp. Moreover, a dysmorphic facial appearance, scoliosis, genu valgum, talipes planus and increased laxity of joints were noted. The coexistence of paired achromic and melanotic macules in the form of "cutis tricolor" with CMTC can be categorized as an unusual example of phacomatosis pigmentovascularis (PPV). This combination differs from all other types of PPV so far known, which is why we propose the new term "phacomatosis achromico-melano-marmorata". Future clinical research may show whether analogous "simple" twin-spot phenotypes in the form of "phacomatosis melanomarmorata" or "phacomatosis achromicomarmorata" do likewise exist.

Published 10 July 2008 in Eur J Dermatol, 18(4): 394-6.
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