Disseminated superficial porokeratosis

Area of Science:

• Dermatology
• Histopathology

Background:

• Disseminated superficial porokeratosis (DSP) is a rare genodermatosis.
• It presents as multiple small, scaling papules that enlarge into annular or linear plaques with a characteristic raised, thread-like border.

Purpose of the Study:

• To describe a case of disseminated superficial porokeratosis in a diabetic patient.
• To emphasize the importance of clinical examination and biopsy for diagnosis.

Main Methods:

• Clinical presentation of a 65-year-old male diabetic patient with a 10-year history of itchy, erythematous, and hyperpigmented plaques.
• Dermatological examination revealing characteristic plaques with raised borders and furrows.
• Skin biopsy to confirm the diagnosis.

Main Results:

• The patient presented with extensive erythematous and hyperpigmented plaques with scaling and crusting.
• A key finding was a raised, thread-like margin with a furrow on a forearm plaque.
• Histopathological examination confirmed disseminated superficial porokeratosis.

Conclusions:

• Disseminated superficial porokeratosis can present with varied morphology.
• Early and accurate diagnosis through clinical suspicion and skin biopsy is crucial for appropriate management.