Porokeratosis: Clinical Studies of 14 Cases / 대한피부과학회지

ABSTRACT

Fourteen cases of porokeratosis were studied clinically. There were four clinical types consisting of classical plaque type(Mibelli), superficial disseminated eruptive form of Respighi (SDE type) and linear type, each in 3 cases, and disseminated superficial actinic porokeratosis (DSAP) in 5 cases. The Mibelli and linear type of the disease appeared in the early teens but other two showed late onset of second to third decade. All cases of SDE type occurred in males and most cases of Mibelli and DSAP type in females. Five cases of DSAP were apparently associated with sun-exposure. The disease process of case 6 (SDE type) seemed to be related to metastatic adenocarcinoma of the brain. The family occurrence of porokeratosis was found in 2 cases of SDE typc and 3 of five cases of DSAP type. They were transrnitted as an autosomal dominant trait. The linear type oppears to be distinct variety from the early appearance of lesions in linear fashion over the lower extremity. The histological features were essentially the same including the typical cornoid lamella, but the features in types other than classical plaque were often minimal, No effective mode of therapy has been found.