Most common type of cyst in digits?

• A. Ganglion cyst
• B. Epidermoid cyst
• C. Enchondroma
• D. Aneurysmal bone cyst

Answer: (C)

Ganglion cysts are the most common cystic lesions seen in the fingers and hand. They arise from the joint capsule or tendon sheath and contain gelatinous mucin. Clinically they present as soft, fluctuant swellings near joints, often on the dorsum of the hand or around finger joints, and they are classic examples of a cystic structure connected to the joint space rather than a true bone or skin cyst.

Epidermoid cysts are subcutaneous keratin-filled lesions that arise from epidermal inclusion and are not tied to joints or tendon sheaths. Enchondromas, by contrast, are intramedullary cartilaginous tumors within the bones of the digits; they produce bone lesions rather than true cysts. Aneurysmal bone cysts are vascular bone lesions with blood-filled spaces inside bone, again not soft tissue cysts.

So the best answer reflects the common soft tissue cyst of the digits: a ganglion cyst. Enchondroma, while a notable hand lesion, is a bone tumor, not a cyst.