Spade phalanx sign (acromegaly)

Spade phalanx sign refers to a characteristic distal phalangeal shape in acromegaly.

Radiographic features

Plain radiographs

The terminal phalangeal tufts become hypertrophied and have a "spade appearance".

Other findings on hand radiography of acromegaly include

  • joint spaces may be minimally enlarged
  • premature osteoarthritis may occur

Differential diagnosis

Share article

Article information

rID: 23435
Section: Signs
Tag: cases
Synonyms or Alternate Spellings:
  • Spade phalanx sign of acromegaly

Support Radiopaedia and see fewer ads

Cases and figures

  • Zoomed in view of...
    Case 1: normal variant
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.