case_images: PMC10868629_01
case_images: Mucosal hyperpigmentation in the oral cavity (marked by the white arrow).
case_images: cureus-0016-00000052372-i01.jpg
case_images: PMC10868629_01_cureus-0016-00000052372-i01.jpg
case_images: FIG1
case_images: Physical examination was completely normal except for mucocutaneous hyperpigmentation at the oral mucosa (Figure 1), skin of the back (Figure 2), and dorsum of the feet (Figure 3).
case_images: Cutaneous hyperpigmentation on the upper back (bilateral scapular areas within the black oval shapes).
case_images: cureus-0016-00000052372-i02.jpg
case_images: PMC10868629_01_cureus-0016-00000052372-i02.jpg
case_images: FIG2
case_images: Physical examination was completely normal except for mucocutaneous hyperpigmentation at the oral mucosa (Figure 1), skin of the back (Figure 2), and dorsum of the feet (Figure 3).
case_images: Cutaneous hyperpigmentation on the dorsum of the feet and toes (within the black oval shapes).
case_images: cureus-0016-00000052372-i03.jpg
case_images: PMC10868629_01_cureus-0016-00000052372-i03.jpg
case_images: FIG3
case_images: Physical examination was completely normal except for mucocutaneous hyperpigmentation at the oral mucosa (Figure 1), skin of the back (Figure 2), and dorsum of the feet (Figure 3).