SAPHO Syndrome Mimicking Infectious Spondylodiscitis and Bone Metastasis

The acronym SAPHO (synovitis, acne, pustulosis, hyperostosis, and osteitis) includes diseases with similar osteoarticular manifestations and skin conditions. Making this diagnosis is not always obvious, especially when the clinical presentation does not fit the typical pattern of the disease or it o...

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Main Authors: S. Biuden, K. Maatallah, H. Riahi, H. Ferjani, M. D. Kaffel, W. Hamdi
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Case Reports in Rheumatology
Online Access:http://dx.doi.org/10.1155/2021/5577257
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author S. Biuden
K. Maatallah
H. Riahi
H. Ferjani
M. D. Kaffel
W. Hamdi
author_facet S. Biuden
K. Maatallah
H. Riahi
H. Ferjani
M. D. Kaffel
W. Hamdi
author_sort S. Biuden
collection DOAJ
description The acronym SAPHO (synovitis, acne, pustulosis, hyperostosis, and osteitis) includes diseases with similar osteoarticular manifestations and skin conditions. Making this diagnosis is not always obvious, especially when the clinical presentation does not fit the typical pattern of the disease or it occurs in a particular field. We described three cases where the diagnosis was difficult. A 46 year-old woman presented with cervical pain. The cervical X-ray showed the aspect of an ivory C5 vertebra. The patient had, however, preserved general condition, no signs of underlying neoplasia, nor other joint complaints. Blood analysis was normal. Tomography did not find any suspect lesion but showed sclerosis and hyperostosis of the manubrium. Scintigraphy showed the characteristic “bullhead” appearance. A 61-year-old woman had thoracic and lumbar pain. MRI showed spondylodiscitis in D3-D4, D4-D5, D5-D6, D6-D7, and L1-L2 with paraspinal soft tissue involvement, simulating infectious spondylodiscitis. Infectious investigations and discovertebral biopsy performed twice were negative. SAPHO syndrome was then suspected. Bone scintigraphy showed uptake in the chondrosternal articulations and D4 to D7 vertebrae. The diagnosis of SAPHO was established. The third case was a 46-year-old man with a lung adenocarcinoma. Staging for metastatic disease, a TAP tomography was performed and showed osteosclerosis of D8 to D12 and intra-articular bridges in the sacroiliac joints. MRI and scintigraphy eliminated malignancy and confirmed the diagnosis of SAPHO. In our cases, imaging findings could facilitate differentiating SAPHO syndrome from other diseases.
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spelling doaj-art-d861ac9868ed4479a5aacf67cfc288742025-02-03T01:27:06ZengWileyCase Reports in Rheumatology2090-68892090-68972021-01-01202110.1155/2021/55772575577257SAPHO Syndrome Mimicking Infectious Spondylodiscitis and Bone MetastasisS. Biuden0K. Maatallah1H. Riahi2H. Ferjani3M. D. Kaffel4W. Hamdi5Department of Rheumatology, Charles Nicolle Hospital, University of Tunis El Manar, Tunis, TunisiaDepartment of Rheumatology, Kassab Institute, University of Tunis El Manar, Tunis, TunisiaDepartment of Radiology, Kassab Institute, University of Tunis El Manar, Tunis, TunisiaDepartment of Rheumatology, Kassab Institute, University of Tunis El Manar, Tunis, TunisiaDepartment of Rheumatology, Kassab Institute, University of Tunis El Manar, Tunis, TunisiaDepartment of Rheumatology, Kassab Institute, University of Tunis El Manar, Tunis, TunisiaThe acronym SAPHO (synovitis, acne, pustulosis, hyperostosis, and osteitis) includes diseases with similar osteoarticular manifestations and skin conditions. Making this diagnosis is not always obvious, especially when the clinical presentation does not fit the typical pattern of the disease or it occurs in a particular field. We described three cases where the diagnosis was difficult. A 46 year-old woman presented with cervical pain. The cervical X-ray showed the aspect of an ivory C5 vertebra. The patient had, however, preserved general condition, no signs of underlying neoplasia, nor other joint complaints. Blood analysis was normal. Tomography did not find any suspect lesion but showed sclerosis and hyperostosis of the manubrium. Scintigraphy showed the characteristic “bullhead” appearance. A 61-year-old woman had thoracic and lumbar pain. MRI showed spondylodiscitis in D3-D4, D4-D5, D5-D6, D6-D7, and L1-L2 with paraspinal soft tissue involvement, simulating infectious spondylodiscitis. Infectious investigations and discovertebral biopsy performed twice were negative. SAPHO syndrome was then suspected. Bone scintigraphy showed uptake in the chondrosternal articulations and D4 to D7 vertebrae. The diagnosis of SAPHO was established. The third case was a 46-year-old man with a lung adenocarcinoma. Staging for metastatic disease, a TAP tomography was performed and showed osteosclerosis of D8 to D12 and intra-articular bridges in the sacroiliac joints. MRI and scintigraphy eliminated malignancy and confirmed the diagnosis of SAPHO. In our cases, imaging findings could facilitate differentiating SAPHO syndrome from other diseases.http://dx.doi.org/10.1155/2021/5577257
spellingShingle S. Biuden
K. Maatallah
H. Riahi
H. Ferjani
M. D. Kaffel
W. Hamdi
SAPHO Syndrome Mimicking Infectious Spondylodiscitis and Bone Metastasis
Case Reports in Rheumatology
title SAPHO Syndrome Mimicking Infectious Spondylodiscitis and Bone Metastasis
title_full SAPHO Syndrome Mimicking Infectious Spondylodiscitis and Bone Metastasis
title_fullStr SAPHO Syndrome Mimicking Infectious Spondylodiscitis and Bone Metastasis
title_full_unstemmed SAPHO Syndrome Mimicking Infectious Spondylodiscitis and Bone Metastasis
title_short SAPHO Syndrome Mimicking Infectious Spondylodiscitis and Bone Metastasis
title_sort sapho syndrome mimicking infectious spondylodiscitis and bone metastasis
url http://dx.doi.org/10.1155/2021/5577257
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