Pitted keratolysis in Child
Affected areas are generally asymptomatic but can emit a foul odor due to the production of isovaleric acid by the bacterial metabolism of the leucine in sweat. Rarely, pruritus, pain, or burning may be present. Predisposing factors are excessive sweating and prolonged occlusion in a warm, humid environment. Although rare, the hands may be affected.
L08.89 – Other specified local infections of the skin and subcutaneous tissue
51212009 – Pitted keratolysis
Differential Diagnosis & Pitfalls
- Tinea pedis
- Juvenile plantar dermatosis – Scaling, erythema, and fissuring of the feet bilaterally caused by repeated cycles of excessive moisture followed by rapid drying.
- Tinea nigra
- Keratolysis exfoliativa – Noninflammatory, asymptomatic condition affecting the soles that presents with scaling in annular or circinate patterns.