Acute hemorrhagic edema of childhood is an unusual form of leukocytoclastic vasculitis previously reported in children age 4 months to 3 years. The etiology remains unknown, however, many authors describe the process as an immune-mediated vasculitis in response to a variety of antigenic stimuli. We report a case of congenital acute hemorrhagic edema of childhood associated with maternal gastroenteritis six weeks before delivery.

Observations on 193 patients with 225 biopsied lesions showing heavy lymphoid infiltrates in the skin are presented. Lesions of cutaneous lymphoid hyperplasia are compared with those of cutaneous malignant lymphoma, and histopathologic criteria for their separation are discussed. The benign lesions could usually be separated from the malignant ones by a higher incidence of epidermal, stromal, and vascular abnormalities and by the presence of a polymorphous cellular infiltrate of well‐differentiated cells. Lesions of cutaneous lymphoid hyperplasia fall into lymphoreticular, granulomatous, and follicular histopathologic patterns, depending on the nature of the infiltrate. The malignant potential of cutaneous lymphoid hyperplasia is low, but rare examples of the association of the malignant with the benign have been recorded.

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