Flexor digitorum tenosynovitis - foreign body induced

Case contributed by Dr Maulik S Patel


Penetrating injury to left 3rd digit metacapo-phalangeal joint region on palmer aspect - 4 months back. Now complaining of local pain, swelling. Reduced finger movements.

Patient Data

Age: about 12 - 14 yrs
Gender: Male

Flexure tendons

 - Normal echopattern

-  No tear

- Synovial thickening with effusion from mid / distal palm to distal interphalangeal joint

- Hypervascularity is noted.

- A linear echogenic structure ( 3.5 mm ) is seen in tendon sheath overlying mid / distal shaft

  of proximal phalanx.


Extensor tendons                      - intact

Metacarpo-phalangeal joint    - no effusion

Interphalangeal joints             - no effusion.

Case Discussion

Findings favor foreign body induced flexure digitorum tenosynovitis.

Flexure tenosynovitis is bumpy or lobulated due to presence of pulley system.

Surgical exploration done. A foreign body was seen more proximally than seen on USG.

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Case information

rID: 42011
Published: 1st Jan 2016
Last edited: 7th Jan 2016
Inclusion in quiz mode: Included

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