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There is a well-defined lobulated lesion in the region of interest.
Size
- 14 mm (length) x 10 mm (transverse) x 5 mm (anteroposterior)
Location
- the lesion is on the palmar side of the distal interphalangeal joint level
- it shows mild dorsal side extension on the ulnar side
- it abutts the flexure tendon
- ulnar side neuro-vascular bundle is elevated by the lesion
- it is separate from tendon/bone/joints
Dynamic scan
- free flexure tendon movements from the lesion
Morphology
- solid
- hypoechoic, mild heterogeneous
- posterior acoustic enhancement present
- no calcification / cystic changes
- not compressible
Doppler
- no intralesional flow signals
- both digital arteries are patent
Adjacent bone cortex
- no erosion
Flexure tendon
- intact with normal echopattern
- no tenosynovitis
Interphalangeal joints
- no effusion