Figure 1.
a) Macroscopic findings. A black macule measuring 2 mm in diameter is present on the ulnar side of the right 5th finger.b) Dermoscopic findings. A homogeneous reddish black area involving the sulci cutis and crista cutis is observed. c)Microscopic findings (hematoxylin & eosin stain, ×40). Hemorrhage is present within the corneal layer. d) Microscopic findings (hematoxylin & eosin stain, ×400). Dilated capillary venules containing erythrocytes and the extravasation of erythrocytes are present just beneath the epidermis.