A 49-year-old man presented with progressive, painful, ulcerative, retiform purpuric patches on the torso and extremities. Multiple skin biopsies revealed a prominent pan-dermal vascular proliferation but no occlusive vasculopathy or cutaneous vasculitis. Diffuse dermal angiomatosis should be considered in the differential diagnosis of retiform purpura, especially in patients with atherosclerotic disease or underlying hypercoagulable states.

Unilateral linear capillaritis (ULC) is a rare variant of pigmented purpuric dermatoses (PPD) that is characterized by a linear or pseudo-dermatomal eruption on a single extremity. Although clinically distinct from the other PPD, it shares histopathologic features with this group. Herein, we present a man in his 50s who presented with asymptomatic macules and scaly papules on the left lower extremity in a linear distribution. The eruption persisted despite treatment with topical triamcinolone 0.1% and oral rutocide.

Vulvar epidermolytic hyperkeratosis is a benign entity that mimics other malignant and inflammatory vulvar dermatoses clinically and histologically requiring careful clinical pathologic correlation for diagnosis.