title: An unusual perineal swelling: a cyst between the sphincters.
abstract: Epidermal cysts are very common lesions. Here we present the unusual case of an epidermal cyst occurring between the anal sphincters, presenting as a lump in the perineum. This was successfully excised with careful dissection of the intersphincteric plane. To our knowledge this is the only case of its kind reported in the literature.
authors.affiliation: University College Hospital London, UK.
authors.forename: Es
authors.initials: E
authors.lastname: Lake
authors.affiliation: University College Hospital London, UK.
authors.forename: Ah
authors.initials: A
authors.lastname: Engledow
authors.affiliation: University College Hospital London, UK.
authors.forename: Crg
authors.initials: C
authors.lastname: Cohen