PubMed · 14116021
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I S HODGSON-JONES. 1964. ANGIOKERATOMA CORPORIS DIFFUSUM.. https://pubmed.ncbi.nlm.nih.gov/14116021/
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A 10-year-old girl with vascular lesions that had been present since birth is reported. Initially, small red macules were limited to the legs, but later the lesions became more extensive. A hyperkeratotic aspect of the lesional skin surface had developed at the age of 2 years. On clinical examination, hyperkeratotic vascular lesions in a band-like distribution on the trunk, legs and face were observed. The type of lesion varied from discrete macules with no or slight hyperkeratosis to confluent, protruding verrucous plaques. The clinical and histopathological findings were consistent with a diagnosis of angiokeratoma circumscriptum. The systematized band-like arrangement observed in the present case strongly supports the concept that angiokeratoma circumscriptum reflects a mosaic state of a mutation that is so far unknown.
Angiokeratoma is a rare, cutaneous vascular disorder that can occur in several clinically distinct conditions. It usually presents as multiple, red to blue or black, asymptomatic papules on the skin. Oral mucosal involvement is common in the systemic form, but very rare in the localized forms of angiokeratomas. We report the second case of a solitary papular angiokeratoma of the oral cavity.
Angiokeratomas (AC) are vascular lesions which are defined histologically as one or more dilated blood vessels lying directly subepidermal and showing an epidermal proliferative reaction with ectatic capillaries in the papillary dermis. Only three other cases of isolated mucosal angiokeratoma have been reported in the indexed literature. We reviewed all cases of angiokeratoma located on the tongue, diagnosed in our department during a study period of 10 years (1995-2005). Histologically all 14 cases showed dilated and congested blood vessels in the upper papillary dermis. They lack deep dermal involvement. Hyperkeratosis and acanthosis were also seen in most of the cases. No clinical data was available to assess systemic disease. A higher incidence of of AC in tongue is seen in our study.