[Chronic ulnocarpal calcareous bursitis]

Area of Science:

• Orthopedics
• Radiology
• Anatomy

Background:

• Nodular calcifications in the ulnocarpal region are rare.
• Understanding their precise location and characteristics is crucial for diagnosis.

Observation:

• Three cases presented with similar clinical and radiological findings of nodular calcifications.
• These calcifications were located near or proximal to the pisiform bone.
• Radiological projections (oblique palmo-dorsal and dorso-palmar) precisely localized the nodules relative to the pisiform and ulnar styloid.

Findings:

• The clinical and radiological features strongly suggest chronic bursitis.
• The location corresponds to the insertion site of the flexor carpi ulnaris tendon on the pisiform bone.

Implications:

• This presentation aids in diagnosing ulnocarpal nodular calcifications.
• Differential diagnoses include tendinous sheath calcifications, accessory pisiform bone, and pisiform fractures.
• Accurate diagnosis is essential for appropriate management of wrist pain and dysfunction.