Table 1.

Comparison among 3 patients (Case 1; giant cell tumor of tendon sheath/Case 2: calcifying aponeurotic fibroma/Case 3 rheumatoid arthritis).

	Case 1	Case 2	Case 3
Age/sex	54/Man	59/Woman	59/Woman
Radiograms
Bony invasion
Metacarpal bases	+	+	+
Distal carpal bones	+	+	+
Proximal carpal bones	+	+	+
Distal radius or ulna	−	−	+
Joints involvement
Carpometacarpal	+	+	+
Midcarpal	+	+	+
Radiocarpal	−	−	+
Other findings
Volar side combined	−	+	++
Calcification	−	+	−
Arthritis	−	−	+
Tendon injury	−	−	−