Seronegative arthritides
Mnemonic WARP CUBS. Common features include Sacro-ilitis, asymmetry and iritis.
| W | Whipple's | Diarrhea, Trophyrema whippelli, PAS positive bodies in intestinal biopsy |
| A | Ankylosing spondylitis | Young male, HLA B27, bamboo spine, straight back |
| R | Reiters | Urethritis, conjunctivitis, arthritis, HLA B27 |
| P | Psoriasis | Plaques on extensor surfaces, Auspitz sign, scaling |
| C | Crohns | Diarrhea - non bloody, perianal abscesses |
| U | Ulcerative colitis | Bloody diarrhea, toxic megacolon, colectomy cures patient |
| B | Behcets | Oral ulcers, pathergy, genital ulcers |
| S | Sarcoid & Stills disease | Hilar lymphadenopathy in sarcoidosis, Salmon patch in stills with spiking fever |