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Pubic and ischial sarcoidosis: a single bone lesion
Kaoutar Imrani1, Kaoutar Znati2, Ittimade Nassar1
1Radiology Department, Ibn Sina University Hospital, Mohammed V University, Rabat, Morocco.
BJR Case Reports
|September 30, 2022
Summary
Bone sarcoidosis rarely indicates the disease alone. Isolated bone lesions, mimicking metastases, require biopsy for diagnosis, as seen in a 61-year-old male with an aggressive ischio pubic ramus lesion.
Area of Science:
- Orthopedic Oncology
- Rheumatology
- Pathology
Background:
- Bone sarcoidosis is an uncommon manifestation of sarcoidosis.
- Diagnosis is challenging, especially with isolated bone lesions.
- Distinguishing bone sarcoidosis from bone metastases is critical.
Observation:
- A 61-year-old male presented with an aggressive lytic lesion in the right ischio pubic ramus.
- The lesion's imaging features were concerning for malignancy.
- Differential diagnosis included bone metastases.
Findings:
- Histological examination of the bone biopsy confirmed sarcoidosis.
- The case highlights the diagnostic difficulty of isolated bone sarcoidosis.
- Bone biopsy is essential for definitive diagnosis when imaging is ambiguous.
Implications:
- This case underscores the importance of considering sarcoidosis in the differential diagnosis of lytic bone lesions.
- Accurate diagnosis through biopsy prevents misclassification and guides appropriate treatment.
- Further research may elucidate specific imaging or biomarker signatures for early detection.
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