Histiocytoid Hemangioma, also known as angiolymphoid hyperplasia with eosinophilia, is related to skin epithelioid hemangioma and hemangioma. An important gene associated with Histiocytoid Hemangioma is MALAT1 (Metastasis Associated Lung Adenocarcinoma Transcript 1), and among its related pathways/superpathways are Smith-Magenis and Potocki-Lupski syndrome copy number variation and Regulation of nuclear SMAD2/3 signaling. Affiliated tissues include bone and skin, and related phenotypes are neoplasm and immune system