Flexor Hallucis Longus Tenosynovitis

Inflammation of the tendon synovial sheath (tenosynovitis) is seen as an increase in fluid (white) around the tendon (black) as shown below. The flexor hallucis longus tendon acts to plantar flex the great toe. Inflammation of this tendon is not uncommon in ballet dancers.
Axial T2 weighted images from above down:
FHL tenosynovitis0001.jpg (27823 bytes) FHL tenosynovitis0002.jpg (27650 bytes)
FHL tenosynovitis0003.jpg (26228 bytes) FHL tenosynovitis0004.jpg (24430 bytes)
FHL tenosynovitis0005.jpg (23403 bytes) FHL tenosynovitis0006.jpg (24563 bytes)

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