Hidradenitis suppurativa with SAPHO syndrome maintained effectively with adalimumab, methotrexate, and intralesional corticosteroid injections

INTRODUCTION: Hidradenitis suppurativa and synovitis, acne, pustulosis, hyperostosis, osteitis syndrome are chronic, debilitating diseases involving apocrine gland-bearing skin inflammation and bone inflammation, respectively. Although both often present with multiple comorbidities, single patient co-presentation is rare. METHODS/RESULTS: This study reports the 8-year treatment course of a 40-year-old man with hidradenitis suppurativa and synovitis, acne, pustulosis, hyperostosis, osteitis syndrome, and reviews relevant literature. Initial oral and topical antibiotics had little effect. Intralesional corticosteroid injections were effective for localized inflammatory lesions but insufficient for hidradenitis suppurativa control. Adalimumab initiation and local excision of a persistent HS lesion led to stabilization. Adalimumab provided dramatic back pain improvement. Synovitis, acne, pustulosis, hyperostosis, osteitis was diagnosed; adalimumab continuation with subsequent methotrexate addition resulted in hidradenitis suppurativa-synovitis, acne, pustulosis, hyperostosis, osteitis control. CONCLUSIONS: Literature regarding comorbid hidradenitis suppurativa and synovitis, acne, pustulosis, hyperostosis, osteitis syndrome therapy is scarce but growing. Adalimumab, methotrexate, intralesional corticosteroid, and lifestyle changes successfully maintained a severe hidradenitis suppurativa–synovitis, acne, pustulosis, hyperostosis, osteitis–syndrome case. Further studies beyond a case-based review could yield more definitive treatment plans.