EK70.2

ICD-11 MMS 2026-01

Digital myxoid pseudocyst

Description

Digital myxoid cysts (DMCs) are benign ganglion cysts of the digits, which typically present as a small dome-shaped, often translucent papule on the dorsum of the terminal phalanx and/or as longitudinal "guttering" of the nail plate which is focally compressed by the cyst as it develops from the underlying nail matrix. In the majority of cases a stalk connecting the cyst with the adjacent distal interphalangeal joint can be demonstrated, accounting for the alternative names of digital ganglion cyst and digital synovial cyst.

Index terms

  • Digital myxoid pseudocyst
  • Digital ganglion cyst
  • Digital mucous cyst
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  • Digital myxoid cyst
  • Digital synovial cyst
  • Synovial cyst of digit

Inclusions

  • Digital ganglion cyst

Sibling codes

  • EK70.0 – Epidermoid cyst
  • EK70.1 – Trichilemmal cyst
  • EK70.3 – Hidrocystoma
  • EK70.Y – Other specified cutaneous cysts
  • EK70.Z – Cutaneous cysts, unspecified

Foundation entity

Digital myxoid pseudocyst – http://id.who.int/icd/entity/1510798426

Part of: EK70: Cutaneous cysts › 14: Diseases of the skin