Profound Proliferating Angiolymphoid Hyperplasia With Eosinophilia of Pregnancy Mimicking Angiosarcoma

Angiolymphoid hyperplasia with eosino-philia (ALHE) is a rare benign vascular proliferation that clinically manifests as nodules and papules of the head and neck region. We report a profound, rapidly proliferating case of ALHE in a 3-week postpartum woman that clinically mimicked angiosarcoma. The clinical and histologic features of ALHE, Kitamura disease, and cutaneous angiosarcoma are reviewed, and the relationship between ALHE and pregnancy is discussed.