Perianal Hematoma, also known as external thrombosed haemorrhoids, is related to leukemia, acute lymphoblastic and prostatic hypertrophy. An important gene associated with Perianal Hematoma is EDIL3 (EGF Like Repeats And Discoidin Domains 3), and among its related pathways/superpathways are GPCR downstream signalling and Signal Transduction. Affiliated tissues include skin, and related phenotype is behavior/neurological.