Diffuse squamous cell carcinoma in porokeratotic eccrine ostial and dermal duct nevus (PEODDN) In Technical by ferociousdigitalJune 5, 2025 Nassiri N, Hansen JE. Diffuse squamous cell carcinoma in porokeratotic eccrine ostial and dermal duct nevus (PEODDN). Plastic and Recons Surg. 123 (2) 87-88, 2009.