Trauma |
- Iatrogenic (traumatic arthrocentesis)
- Without bone fracture
- With bone fracture (lipohemarthrosis)
- Postoperative
|
Hematologic |
- Drug-induced
- Inherited hematologic disorders (ie, coagulation disorders, sickle cell disease)
- Acquired hematologic disorders (ie, myeloproliferative diseases, essential thrombocytosis, and thrombocytopenia)
|
Neurologic |
- Neuropathic (Charcot) arthropathy
|
Tumors |
- Tenosynovial giant cell tumor (pigmented villonodular synovitis)
|
Vascular |
- Hemangioma
- Arteriovenous malformation
- Aneurysm
- Synovial vascular structural abnormalities
|
Osteoarthritis |
- Degenerative tear of the meniscus
- Osteoarthritis (other)
|
Crystal diseases |
- Gout
- Pseudogout (calcium pyrophosphate deposition disease)
- Milwaukee shoulder
|
Nutritional |
|
Septic arthritis |