FIGURES:
Figure 1: 1A: Black nodule of the ombilicus; 1B: Omphalolith after removal. three black nodules with horny-like projections; 1C: Histopathological aspect of the omphalolith showing laminated keratin (HE x20).
Figure 2: 2A: Keratotic, brownish nodule protruding out of the umbilicus; 2B: Omphalolith after removal: black keratotic nodule; 2C: Narrow and deep umbilicus with no signs of inflammation or ulceration; 2D: Dermoscopic aspect: dry crusted pigmented lamellar keratotic material.