Assign M67. 4x for mucous cyst of digit.
A mucous cyst is a sac filled with fluid that appears on the finger, above the joint located next to the nail (the distal interphalangeal joint). The cyst can often thin the skin around the nail.
Mucoid cysts are fluid-filled sacs that usually develop on or near the joints of the fingers, although the toes can be affected. Typically benign, they feel like firm, rubbery lumps, and are usually not painful unless they grow large enough to put pressure on nerves.
Mucous cysts are a type of ganglion. They are fluid-filled sacs that are typically found at the finger joint closest to the fingernail, better known as the DIP joint. The stalk of the mucous cyst is often connected to the DIP joint. Mucous cysts are firm and do not easily move under the skin.
Heberden's nodes are hard bony lumps in the joints of your fingers. They are typically a symptom of osteoarthritis. The lumps grow on the joint closest to the tip of your finger, called the distal interphalangeal, or DIP joint.
Ganglion cysts arise from myxoid degeneration of the connective tissue of the joint capsule, are filled with viscoid fluid or gelatinous material, and have a fibrous lining. Synovial cysts also contain gelatinous fluid and are lined with cuboidal to somewhat flattened cells consistent with a synovial origin.
The mechanism of formation of digital mucous cysts is unknown. Currently, it is believed that the cysts arise from mucoid degeneration of connective tissue and that this process, in most cases, involves communication with the adjacent DIP joint and possible coexistence of osteoarthritis.
There is no known cause for ganglion cysts, although they sometimes appear in response to joint or tendon irritation. When the cysts develop at the end of a finger joint, they are typically associated with arthritis of that joint. This happens more often in women over the age of 40.
A ganglion cyst usually looks like a lump or bump on your wrist, finger or foot. This lump may look symmetrical (round) or misshapen (more like an oval). A ganglion cyst sits just below the skin's surface. It may look like a bubble blown from a joint.
A myxoid cyst is a type of ganglion. A ganglion is a soft tissue tumor that grows near a joint or tendon. A myxoid cyst involves soft tissue and grows near the last joint of a finger or toe and often stems from osteoarthritis.
Oral Mucous Cyst Causes Your saliva moves from a salivary gland through tiny tubes (ducts) into your mouth. One of these ducts can become damaged or blocked. This most often happens if you repeatedly bite or suck on your lower lip or cheek.