A classic bone tumor of the finger

Case Identification

Case ID Number
Position within the bone
Benign or Malignant

Clinical case information

Case presentation

A 20 year old woman has a slowly growing mass adjacent to the ulnar aspect of the middle phalanx of her ring finger. It has been present for 18 months, and is minimally painful. She is otherwise well and there are no other pertinent findings.

Radiological findings:
A lucent lesion on the surface of the phalanx with a shallow saucer shaped defect area on the cortex and buttressing of the sides of the lesion at the proximal and distal ends.
Laboratory results:
None available
Differential Diagnosis
A surface lesion of the bones that can occur in the finger, or a common tumor of the fingers that can affect the bone?
Further Work Up Needed:
None
Pathology results:
pending
Treatment Options:
the right treatment depends on getting the diagnosis right - what is your diagnosis?
Special Features of this Case:
The patient was treated at the HEODRA hospital in Leon, Nicaragua