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skINsight
November 2006

Dermoscopy of Venous Stasis Dermatitis

Author Affiliations
 

JAMES M.GRICHNIKMD, PhD

Arch Dermatol. 2006;142(11):1526. doi:10.1001/archderm.142.11.1526

The lesions shown are from the right leg of a 67-year-old man (Figure 1), the left leg of a 65-year-old woman (Figure 2), and the right leg of a 71-year-old man (Figure 3) (size bar, 4 mm). All 3 lesions reveal a similar pattern: the presence of glomerularlike vessels at high magnification (×30) or red globules at low magnification (×10) and a scaly surface. The glomerularlike vessels are a peculiar dermoscopic vascular feature characterized by the presence of tortuous vessels mimicking the glomerular apparatus of the kidney. Glomerular vessels may often be distributed in clusters or throughout the lesion. This special feature corresponds histopathologically to a convolution of grouped, frequently dilated capillaries in the dermal papillae and papillary dermis. The dermoscopic pattern composed of glomerularlike vessels and scaly surface is characteristic of Bowen disease but also venous stasis dermatitis. The histopathologic diagnosis of these 3 cases was venous stasis dermatitis.

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