This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Which of the following is not a feature of Juvenile Idiopathic Arthritis – 
Select and explain. 
A. Rheumatoid nodule, B. Spikes of high fever, C. Uveitis, D. Raynaud's phenomenon
D: Raynaud's phenomenon
Answer: D: Raynaud's phenomenon 
Explanation: Juvenile idiopathic arthritis

Juvenile idiopathic arthritis is broad term that describes a clinically heterogenous group of arthritides of unknown cause, which begin before 16 years of age.
This term encompasses several disease categories : -

1. Juvenile rheumatoid arthritis (see previous explanations) : -
i) Pauciarticular (oligoarticular) JRA
ii) Poly-articular JRA

RA. factor (+) ye
RA factor (-) ye

iii) Systemic JRA

Juvenile psoriatic arthritis
Juvenile enthesitis related arthritis (ERA)

​Subgroups of Juvenile Idiopathic Arthritis (JIM