PMC9957570_01
A gross photograph shows a nodule (arrow) over the extensor surface of the right knee.
cureus-0015-00000034254-i01.jpg
PMC9957570_01_cureus-0015-00000034254-i01.jpg
FIG1
On physical examination, a nontender, firm, immobile, reddish, solitary nodule of 2 cm in diameter was observed on the extensor surface of the right knee (Figure 1).
A high-power field histopathological image shows the lesion with an area of basophilic calcified material (arrow) in the skin.
cureus-0015-00000034254-i02.jpg
PMC9957570_01_cureus-0015-00000034254-i02.jpg
FIG2
Histopathological examination revealed well-circumscribed deposits of basophilic materials in the subcutaneous tissue that is consistent with calcium deposits of calcinosis cutis (Figure 2).