What are the common synovial lesions?

  (A) Rheumatoid arthritis
  Systemic progressive joint damage, chronic systemic connective tissue disease. Features: Symmetrical synovial inflammation in most joints.
  Early stage: Wandering joint pain, swelling and movement disorders. Alternating episodes of remission.
  Late stage: joint stiffness and deformity.
  Active phase: fever, fatigue, anemia, weight loss
  Mostly developed by 1-2 joints
  Signs and symptoms.
  (1) joint pain and swelling.
  (2) Morning stiffness.
  (3) involvement of multiple joints (1-3 or more).
  (4) Restricted joint movement deformity (advanced stage)
  (ii) Gouty arthritis
  Gout: disorder of purine metabolism or impaired uric acid excretion, characterized by hyperuricemia. Manifestations: recurrent episodes of arthritis, gouty stone formation, joint deformity.
  Causes: cold, exertion, hunger, alcohol consumption, overeating, consumption of high purine food, etc.
  Onset is often sudden at night. Most often occurs in the metatarsophalangeal joint. Local swelling, heat, pain may have elevated body temperature, headache systemic manifestations.
  Auxiliary examination: blood uric acid is increased. There may be increased white blood cells and increased blood sedimentation.
  Avoid seafood, beer, soy products, animal offal
  (C) Synovial chondromatosis
  Synovial membrane had villous hyperplasia, gradually formed osteochondral vesicles, and then formed free body, free body bone tissue necrosis, cartilage part of the absorption of synovial fluid.
  Local manifestations: pain, swelling, weakness, progressive activity disorder, interlocking and other local swollen free body manifestations.
  (D) pigmented villous nodular synovitis
  Occurs in joints, tendon sheaths, bursae chronic synovial disease.
  Diffuse and limited type: synovial membrane is mostly diffuse, tendon sheath bursa is mostly limited type.
  ¼-1/2 have a history of trauma or triggered.
  Diffuse type: periodic, chronic pain, swelling, high local skin temperature without redness, diffuse pressure pain.
  Limited type: nodular lesions resulting in restricted movement, interlocking popping, limited pressure pain, and insignificant swelling.
  (v) tuberculosis
  (VI) hemangioma