PMC3155693_01
a, b Asymptomatic slate-gray pigmented plaques on the left thigh (a) and left abdomen (b; case 1). c Ashy-gray pigmented area on the left femur (case 2).
cde0003-0001-f01.jpg
PMC3155693_02_cde0003-0001-f01.jpg
F1
Examination of the skin showed an ashy-gray, irregular-shaped, pigmented area on the ventral aspect of the left abdomen that extended to the left femur (fig. 1c).
a, b A punch biopsy from the back shows a mild lymphohistiocytotic infiltrate in the upper dermis and epidermal and dermal melanosis (case 1). c, d There is a lichenoid tissue reaction with vacuolar change and mild infiltration of lymphocytes and prominent melanosis in the upper dermis (case 2). HE, original magnification x100 (a, c), x200 (b, d).
cde0003-0001-f02.jpg
PMC3155693_02_cde0003-0001-f02.jpg
F2
Microscopic examination of a biopsy specimen showed a lichenoid tissue reaction associated with a vacuolar change (fig. 2c, d).
PMC3155693_02
a, b Asymptomatic slate-gray pigmented plaques on the left thigh (a) and left abdomen (b; case 1). c Ashy-gray pigmented area on the left femur (case 2).
cde0003-0001-f01.jpg
PMC3155693_02_cde0003-0001-f01.jpg
F1
Examination of the skin showed an ashy-gray, irregular-shaped, pigmented area on the ventral aspect of the left abdomen that extended to the left femur (fig. 1c).
a, b A punch biopsy from the back shows a mild lymphohistiocytotic infiltrate in the upper dermis and epidermal and dermal melanosis (case 1). c, d There is a lichenoid tissue reaction with vacuolar change and mild infiltration of lymphocytes and prominent melanosis in the upper dermis (case 2). HE, original magnification x100 (a, c), x200 (b, d).
cde0003-0001-f02.jpg
PMC3155693_02_cde0003-0001-f02.jpg
F2
Microscopic examination of a biopsy specimen showed a lichenoid tissue reaction associated with a vacuolar change (fig. 2c, d).