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A ganglion cyst is a fluid-filled bump associated with a joint or tendon sheath. [3] It most often occurs at the back of the wrist, followed by the front of the wrist. [3] [4] The cause is unknown. [3] The underlying mechanism is believed to involve an outpouching of the synovial membrane. [4] Diagnosis is typically based on examination.
Most infectious tenosynovitis cases should be managed with tendon sheath irrigation and drainage, with or without debridement of surrounding necrotic tissue, along with treatment with broad-spectrum antibiotics. [5] In severe cases, amputation may even be necessary to prevent the further spread of infection.
People with diabetes might be relatively prone to trigger finger. [3] The pathophysiology is enlargement of the flexor tendon and the A1 pulley of the tendon sheath. [3] [2] While often referred to as a type of stenosing tenosynovitis (which implies inflammation) the pathology is mucoid degeneration. [3]
The sheath which surrounds the flexor digitorum extends downward about halfway along the metacarpal bones, where it ends in blind diverticula around the tendons to the index, middle, and ring fingers. It is prolonged on the tendons to the little finger and usually communicates with the synovial sheath of these tendons.
Trigger finger is a common disorder which occurs when the sheath through which tendons pass, become swollen or irritated. Initially, the finger may catch during movement but symptoms like pain, swelling and a snap may occur with time. The finger often gets locked in one position and it may be difficult to straighten or bend the finger.
De Quervain syndrome occurs when two tendons that control movement of the thumb become constricted by their tendon sheath in the wrist. [3] [5] [6] This results in pain and tenderness on the thumb side of the wrist. [3] Radial abduction of the thumb is painful. [6] On some occasions, there is uneven movement or triggering of the thumb with ...
In human anatomy, the annular ligaments of the fingers, often referred to as A pulleys, are the annular part of the fibrous sheathes of the fingers. Four or five such annular pulleys, together with three cruciate pulleys , form a fibro-osseous tunnel on the palmar aspect of the hand through which passes the deep and superficial flexor tendons .
Histopathology of localized TGCT arising in hand finger. H&E stain. Localized TGCT is sometimes referred to as localized pigmented villonodular synovitis (L-PVNS), giant cell tumor of the tendon sheath (GCT-TS), nodular tenosynovitis, localized nodular tenosynovitis, and L-TGCT. [2]: 1 [3]: 100 The localized form of TGCT is more common.