Tenosynovitis: Inflammation of the synovial lining of a tendon sheath. Causes include trauma, tendon stress, bacterial disease (gonorrhea, tuberculosis), rheumatic disease, and gout. Common sites are the hand, wrist, shoulder capsule, hip capsule, hamstring muscles, and Achilles tendon. The tendon sheaths become inflamed and painful, and accumulate fluid. Joint mobility is usually reduced.De Quervain Disease: Stenosing tenosynovitis of the abductor pollicis longus and extensor pollicis brevis tendons in the first dorsal wrist compartment. The presenting symptoms are usually pain and tenderness at the radial styloid. The cause is almost always related to OVERUSE INJURY or is associated with RHEUMATOID ARTHRITIS.Wrist Joint: The joint that is formed by the distal end of the RADIUS, the articular disc of the distal radioulnar joint, and the proximal row of CARPAL BONES; (SCAPHOID BONE; LUNATE BONE; triquetral bone).Tendon Entrapment: Narrowing or stenosis of a tendon's retinacular sheath. It occurs most often in the hand or wrist but can also be found in the foot or ankle. The most common types are DE QUERVAIN DISEASE and TRIGGER FINGER DISORDER.Wrist: The region of the upper limb between the metacarpus and the FOREARM.Finger Joint: The articulation between the head of one phalanx and the base of the one distal to it, in each finger.Tennis Elbow: A condition characterized by pain in or near the lateral humeral epicondyle or in the forearm extensor muscle mass as a result of unusual strain. It occurs in tennis players as well as housewives, artisans, and violinists.Tuberculosis, Osteoarticular: Tuberculosis of the bones or joints.Tendons: Fibrous bands or cords of CONNECTIVE TISSUE at the ends of SKELETAL MUSCLE FIBERS that serve to attach the MUSCLES to bones and other structures.Mycobacterium marinum: A moderate-growing, photochromogenic species found in aquariums, diseased fish, and swimming pools. It is the cause of cutaneous lesions and granulomas (swimming pool granuloma) in humans. (Dorland, 28th ed)Synovitis: Inflammation of a synovial membrane. It is usually painful, particularly on motion, and is characterized by a fluctuating swelling due to effusion within a synovial sac. (Dorland, 27th ed)Metacarpophalangeal Joint: The articulation between a metacarpal bone and a phalanx.Forearm Injuries: Injuries to the part of the upper limb of the body between the wrist and elbow.Sports Equipment: Equipment required for engaging in a sport (such as balls, bats, rackets, skis, skates, ropes, weights) and devices for the protection of athletes during their performance (such as masks, gloves, mouth pieces).Tendinopathy: Clinical syndrome describing overuse tendon injuries characterized by a combination of PAIN, diffuse or localized swelling, and impaired performance. Distinguishing tendinosis from tendinitis is clinically difficult and can be made only after histopathological examination.Mycobacterium Infections, Nontuberculous: Infections with nontuberculous mycobacteria (atypical mycobacteria): M. kansasii, M. marinum, M. scrofulaceum, M. flavescens, M. gordonae, M. obuense, M. gilvum, M. duvali, M. szulgai, M. intracellulare (see MYCOBACTERIUM AVIUM COMPLEX;), M. xenopi (littorale), M. ulcerans, M. buruli, M. terrae, M. fortuitum (minetti, giae), M. chelonae.Hand: The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.
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