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. Epidermal cysts are common. They occur most frequently on the head and neck 1 but can arise anywhere on the body.
Surgery for pilonidal cyst
Anal/Rectal Abscess: Overview, Causes, and Symptoms
An anorectal abscess also referred to as an anal abscess, rectal abscess, perianal abscess, or perirectal abscess depending on its location is a pus-filled cavity that forms within the furrows of the anal canal called the anal sinuses. As your body tries to control the infection, white blood cells killed in the battle and other bodily fluids start to collect in the tissue, forming a pocket of pus. Abscesses can form near or within the anus or develop much higher up in the rectum itself. While an abscess can form spontaneously for no apparent reason, it is commonly associated with gastrointestinal disease, bowel irregularities, immune suppression, and even certain medications.
An Overview of Anal or Rectal Abscess
A pilonidal cyst is a pocket that forms around a hair follicle in the crease between the buttocks. The area may look like a small pit or pore in the skin that contains a dark spot or hair. Sometimes the cyst can become infected and this is called a pilonidal abscess. An infected pilonidal cyst or abscess requires surgical drainage. It will not heal with antibiotic medicines.
An anal, or rectal, abscess occurs when a cavity in the anus becomes filled with pus. It causes extreme pain, fatigue , rectal discharge, and fever. In some cases, anal abscesses can result in painful anal fistulas. A blocked anal gland, a sexually transmitted infection STI , or an infected anal fissure can cause anal abscesses.