Great saphenous vein dilatation with reflux at the saphenofemoral junction: A rare underlying association of eccrine angiomatous hamartoma.

Eccrine angiomatous hamartoma (EAH) is an exceedingly rare benign tumor-like lesion prevalent in childhood, which can produce pain and marked sweating. Histological features include proliferation of eccrine sweat glands and angiomatous capillary channels. It may be rarely associated with underlying pathological conditions. A 15-year-old female patient presented with multiple tender reddish papules and nodules coalescing to form plaques of 10 × 8 cm over the anterior aspect of the right lower thigh since birth. It was associated with hypertrichosis, hyperhidrosis, pain, and occasional bleeding on trauma. Histopathological examination of the lesion showed increased proliferation of both eccrine and angiomatous channels. Ultrasonography and Color Doppler of the right thigh showed dilatation of the great saphenous vein (GSV) above the right knee, with evidence of grade 3 reflux at saphenofemoral junction. Magnetic resonance imaging revealed large dilated GSV with slow flow and venous malformation in the anterior part of the right knee.