Punctate porokeratosis

Multiple minute parakeratotic keratoses of the hands in a patient with systemic lupus erythematosus

“…Histologically it is characterized by compact parakeratotic columns overlying a significantly decreased or absent stratum granulosum. Based on the consistent histological finding of cornoid lamella‐like structures, some authors regarded this condition as a variant of porokeratosis, and named it punctate porokeratosis, 2,3 although the lesions are not annular, and do not have a raised margin or centrifugal expansion 4,5 . Our case differs from PPK in two ways.…”

Two Case Reports of Columnar Dyskeratosis, an Unusual Keratinisation Disorder

“…Porokeratosis punctata palmaris et plantaris is clinically and histopathologically similar to the lesions on the palms and soles in case 2. The gross appearance of the lesions was reminiscent of the ‘keratotic projections’ or ‘keratotic plugs’ described in porokeratosis punctata [16,17,18,19]. Histopathologically, some keratinocytes had perinuclear haloes, which could simulate the vacuolisation that is typical of porokeratosis.…”

Poroqueratosis punctata: reporte de un caso y revisión de la literatura

“…Himmelstein publica el año 1984 lo que considera el quinto caso reportado de PP [26]. Paciente de origen hispano, de 26 años, con lesiones recurrentes puntiformes de 1-2 milímetros, de tipo seed-like, en palma y planta izquierda.…”