
Dermatosis papulosa nigra
    
    Encyclopedia
    
        Dermatosis papulosa nigra (DPN) is a condition of many small, benign skin lesions on that face that closely simulate seborrheic keratoses, a condition generally presenting on dark-skinned individuals.
They should not be confused for Leser-Trélat sign
, a sudden explosion of lesions due to a growing tumor.
 
        
    
They should not be confused for Leser-Trélat sign
Leser-Trelat sign
The Leser-Trélat sign is the explosive onset of multiple seborrheic keratoses , often with an inflammatory base.  This can be an ominous sign of internal malignancy as part of a paraneoplastic syndrome...
, a sudden explosion of lesions due to a growing tumor.

