TY - JOUR T1 - Images of the month 3: The ‘bull's head’ sign of SAPHO syndrome JF - Clinical Medicine JO - Clin Med SP - 342 LP - 343 DO - 10.7861/clinmedicine.19-4-342 VL - 19 IS - 4 AU - Natasha Valiallah AU - James Denny AU - Fiona Worsnop AU - Janakan Natkunarajah Y1 - 2019/07/01 UR - http://www.rcpjournals.org/content/19/4/342.abstract N2 - Synovitis, acne, pustulosis, hyperostosis and osteitis (SAPHO) syndrome is a rare, chronic, inflammatory disorder with cutaneous and osteoarticular manifestations.1 The aetiology of SAPHO syndrome is unknown and therefore treatment is tailored towards the individual. Non-steroidal anti-inflammatory drugs, bisphosphonates, corticosteriods, antibiotics, disease modifying anti-rheumatic drugs and biologics have all been used with variable success. ER -