Dermatoscopy of rare dermatoses: pitted keratolysis

Pitted keratolysis (PKL) is a special form of bacterial skin lesion, which is almost not accompanied by an inflammatory response under normal conditions. Due to the low prevalence, the diagnosis of PKL is difficult. At the same time, it can be accompanied by itching, unpleasant odor and hyperhidrosis of the feet, which adversely affects the quality of life of the patient. A clinical case of PKL in a high-risk patient is presented; PKL had a classical clinical picture but was not immediately recognized. Dermatoscopy conducted to exclude oncology of the skin is of particular interest. Dermatoscopic observations in PKL are occasional, and vascular changes in the dermatoscopic pattern were not previously described. The presented observation raises the question of the possibility of an inflammatory reaction in PKL and the specificity of the dermatoscopic picture of such inflammation.

pitted keratolysis, dermatoscopy, clinical case