| Namespace | MPheno.ontology | Obsolete | false |
| description | any structural anomaly of the modified holocrine gland that is part of the pilosebaceous unit of a hair located in the area around the anus; each of the specialized large hair follicles that surround and form a network around the anus has a pair of large sebaceous glands that empty into the follicle; perianal glands may function as scent glands |