This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Joint disorders, Subject name: Orthopaedics
Oligoahritis with ascending joint involvement is seen in - 
Select and explain. 
A. Juvenile osteoahritis, B. Seronegative ahritis, C. SLE, D. Septis ahritis
B: Seronegative ahritis
Answer: B: Seronegative ahritis 
Explanation: SERONEGATIVE SPONDYLOAHROPATHIES * These comprise a group of related inflammatory joint diseases, which show considerable overlap in their clinical features and a shared immunogenetic association with the HLAB27 antigen . They include: * ankylosing spondylitis * axial spondyloahritis * reactive ahritis, including Reiter&;s syndrome * psoriatic ahritis * ahropathy associated with inflammatory bowel disease. ref : maheswari 9th ed