4/11/2023 0 Comments Extensor compartments wrist![]() ![]() ![]() Flexor tendon sheath ganglions: Results of surgical excision. Review of ganglia of the hand and wrist with analysis of surgical treatment. Churchill Livingstone: New York, NY, USA, 1993 pp. Common Soft Tissue Tumors Involving the Hand with Histopathological Correlation. The authors declare no conflict of interest. They also have a fibrous lining, in contrast to synovial cysts that are lined with cuboidal epithelium and contain synovial fluid. The myxoid degeneration of the connective tissue of the joint capsule leads to the formation of the ganglion cysts, which contain gelatinous fluid, including hyaluronic acid and mucopolysaccharides. Ganglion and synovial cysts are histologically distinct but radiologically indistinguishable and clinically treated equivalently. Retinacular cysts along the finger flexor tendon sheaths most often arise at the A1 and A2 pulley ( Figure 2). Dorsal wrist ganglion cysts usually originate from the scapholunate joint ( Figure 1) while volar-based ganglion cysts originate from the radioscaphoid–scapholunate interval but can arise from the scaphotrapezial joint as well. Small rents in the communicating joint capsule permit accumulation of synovial fluid within the ganglion. This coincides with popular agreement that repetitive stretching of the capsular and ligamentous structures around joints stimulates production of tissue hyaluronic acid by nearby fibroblasts. Although mostly idiopathic in nature, a recent study demonstrated that at least 10% of patients report a preceding traumatic event before the appearance of a ganglion. ![]()
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