Semin Musculoskelet Radiol 2001; 05(2): 089-094
DOI: 10.1055/s-2001-15658
Copyright © 2001 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. Tel.: +1(212) 584-4662

Pustulotic Arthro-osteitis: Defining the Radiologic Spectrum of the Disease

Kazusa Hyodoh1 , Hideharu Sugimoto2
  • 1Department of Radiology, Sapporo Medical School, Sapporo, Japan
  • 2Department of Radiology, Showa University Fujigaoka Hospital, Yokohama, Japan
Further Information

Publication History

Publication Date:
31 December 2001 (online)

ABSTRACT

Pustulotic arthro-osteitis (PAO) was termed by Sonozaki et al., who discussed the relationship between palmoplantar pustulosis (PPP) and osteoarticular inflammation. Manifestations of PAO are observed in the anterior chest wall, the spine, the pelvis, the sacroiliac joint, and the long bones. Hyperostosis is a radiological feature of PAO; furthermore, anterior chest wall involvement is common. The term SAPHO syndrome (SAPHO being an acronym for synovitis, acne, pustulosis, hypertostosis, and osteitis) has been coined to describe disease that manifests sterile inflammatory bone lesions together with skin eruptions. SAPHO syndrome groups together the following osteo-articular lesions that have been described as separate medical entities: chronic recurrent multifocal osteomyelitis (CRMO), PAO, and arthro-osteitis associated with a follicular occlusive triad. Osseous changes due to psoriasis vulgaris and generalized pustular psoriasis can be radiologically and clinically distinguishable from osseous changes due to PPP, acne, and CRMO as seronegative spondyloarthropathies.

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