Ichthyosis linearis circumflexa: morphological and biochemical studies

Abstract
Extensive morphological and biochemical studies were carried out on 2 sibling cases of ichthyosis linearis circumflexa. The condition was found to be similar to psoriasis in the following ways: effectiveness of PUVA [8-methoxy psoralen and UV therapy] therapy; psoriatic changes on light microscopy and EM; high urinary polyamine levels; elevation of several enzyme activities in the scales; and a remarkable change in keratin molecules. These results may reflect an increased epidermal proliferation with a reduced epidermal transit time, as occurs in psoriasis.

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