Blood, hematopoietic organs-immune system (D50-D90).
- Sarcoidosis (synonyms: Boeck’s disease; Schaumann-Besnier’s disease) – systemic disease of connective tissue with granuloma formation.
Infectious and parasitic diseases (A00-B99).
- Gonorrhea (gonorrhea) – sexually transmitted infectious disease.
Musculoskeletal system and connective tissue (M00-M99).
- Acute septic arthritis – joint inflammation caused by pathogens such as bacteria.
- Activated osteoarthritis – arthritis associated with signs of inflammation such as swelling, hyperthermia and joint effusion.
- Arthritis psoriatrica – joint involvement in the context of psoriasis.
- Chondrocalcinosis (synonym: pseudogout); gout-like disease of the joints caused by deposition of calcium pyrophosphate in the cartilage and other tissues; leads, among other things, to joint degeneration (often of the knee joint); symptomatology resembles an acute gout attack
- Calcifying periarthritis – inflammation of the tissue surrounding the joint.
- Palindromic rheumatism – seizure-like inflammation of the joints without progressive changes in the joints.
- Pyogenic arthritis
- Reactive arthritis (synonym: post-infectious arthritis / joint inflammation) – second disease after gastrointestinal (gastrointestinal tract concerning), urogenital (urinary and genital organs concerning) or pulmonary (lungs concerning) infections; refers to an arthritis, where pathogens in the joint (usually) can not be found (sterile synovitis).
- Reiter’s disease (synonyms: Reiter’s syndrome; Reiter’s disease; arthritis dysenterica; polyarthritis enterica; postenteritic arthritis; posturethritic arthritis; undifferentiated oligoarthritis; urethro-oculo-synovial syndrome; Fiessinger-Leroy syndrome; English Sexually acquired reactive arthritis (SARA)) – special form of a “reactive arthritis” (see above. ); secondary disease after gastrointestinal or urogenital infections, characterized by the symptoms of Reiter’s triad; seronegative spondyloarthropathy, which is triggered especially in HLA-B27 positive persons by an intestinal or urinary tract disease with bacteria (mostly chlamydia); Can manifest as arthritis (joint inflammation), conjunctivitis (conjunctivitis), urethritis (urethritis) and partly with typical skin changes.
- Rheumatoid arthritis, atypical course (symptoms: symmetrical affection of the small joints; morning stiffness).
- Psoriatic arthritis (arthritis based on psoriasis) (symptoms: psoriatic skin lesions).
Further
- Joint trauma (joint injury; see history below).
- Condition after intra-articular injection.
Medication
- See “Causes” under medications
