"Gastroarthritis": Not a Recognized Medical Term

"Gastroarthritis" does not exist in medical nomenclature. It appears to be a portmanteau of "gastro-" (stomach) and "arthritis" (joint inflammation), possibly confusing:

• Reactive Arthritis (Reiter's Syndrome): Post-infectious (Salmonella, Shigella, Campylobacter, Chlamydia) triad: arthritis, conjunctivitis, urethritis.
• Enteropathic Arthritis: Spondyloarthritis associated with IBD (Crohn's, ulcerative colitis).
• Whipple's Disease: Tropheryma whipplei infection → arthralgia, diarrhea, weight loss, CNS signs.
• Celiac Disease: Gluten-sensitive enteropathy with extra-intestinal joint symptoms.
• Viral Arthralgias: Parvovirus B19, hepatitis B/C, rubella, alphaviruses.

What to Do

1. See a rheumatologist for joint symptoms + GI complaints.
2. Workup: CBC, CRP/ESR, HLA-B27, stool studies, celiac serology, IBD markers (fecal calprotectin), imaging (X-ray/MRI SI joints).
3. Treat underlying GI condition; arthritis often improves with gut disease control.

Accurate diagnosis requires separating GI and joint pathologies—not a hybrid term.