False about SAPHO syndrome: (A) Rheumatoid factor negative, (B) 'P' stands for psoriasis, (C) HLA B-27 positive, (D) 'S' stands for synovitis
Answer is B. SAPHO -
S - Synovitis
A - Acne
P - Pustulosis palmoplantar
H - Hyperostosis
O - Osteitis