Children and adolescents
Pediatric sarcoidosis / Blau syndrome
Under age 5: rash, arthritis (boggy tenosynovitis) and uveitis (Blau or early-onset sarcoid). Older children resemble adult sarcoid.
What to look for
- Under 5: granulomatous rash, boggy synovitis or tenosynovitis, uveitis. Lungs are usually spared. Associated with NOD2 variants.
- Older children: hilar nodes, lung disease, erythema nodosum, uveitis
What to do
- Arrange an ophthalmology exam. Send calcium, CBC, metabolic panel and urinalysis, and get a chest X-ray.
- Biopsy for non-caseating granulomas. Genetic testing for Blau syndrome.
About this urgency level
Specialist evaluation helps, but these are usually less time-sensitive than new inflammatory arthritis or connective tissue disease.
Timeframes are typical targets. Local pathways, capacity and clinical judgment come first.