Endogenous ochronosis/Alkaptonuria: A case report highlighting the correlation between dermoscopy and histopathology

Abstract

Endogenous ochronosis/Alkaptonuria is a rare, genetic metabolic disease presenting with cutaneous hyperpigmentation, disabling arthropathy, and homogentisic aciduria. The dermoscopic features of this entity have a good correlation with the histopathological findings, and its knowledge can facilitate early diagnosis to decrease long-term morbidity and improve the quality of life.

Keywords

• alkaptonuria
• dermoscopy
• hyperpigmentation
• metabolic
• ochronosis