Palmar suppurative tenosynovitis, bursitis, and deep space infections

Palmar suppurative tenosynovitis, bursitis, and deep-gap infections are all purulent infections of the deep palms caused by Staphylococcus aureus. The skin of the palm of the hand has a thick skin cortex with obvious keratosis, and there are very dense vertical fibrous tissue bundles under the skin. The fibrous tissue bundle is connected to the dermal layer at one end, and fixed to the periosteum of the phalanx (at the inferior finger), tendon sheath (at the proximal and middle finger), or palmar fascia (at the palm). The fibers divide the palmar subcutaneous tissue into many tough, tightly closed cavities. Inflammation is difficult to spread to the surrounding area after infection. It often causes tenosynovitis and continues to spread to deep tissues, causing infection of the synovial sac and hand space.

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