Digital mucous cysts eru eins konar ganglion sem sést oft á hendinni. Ganglion er æxli í mjúkvef sem finnst við hlið liðs eða sin. Digital mucous cyst þróast sérstaklega aftan á distal interphalangeal lið (DIP lið) . Þessar blöðrur eru oft til með slitgigt í undirliggjandi DIP lið. Digital mucous cysts are a type of ganglion commonly found on the hand. A ganglion is a soft tissue tumor that is found next to a joint or tendon. A digital mucous cyst is a ganglion that arises from the dorsum of the distal interphalangeal joint (DIP joint). Digital mucous cysts commonly have an association with underlying DIP joint osteoarthritis.