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Bone metastasis with superimposed osteomyelitis in prostate cancer
M Pruckmayer1, C Glaser, C Nasel
1University Clinic of Nuclear Medicine, Vienna, Austria.
Summary
This case highlights the diagnostic challenge of superinfected tumors. Prostate cancer metastasis mimicked osteomyelitis, emphasizing the need for accurate diagnostic methods.
Area of Science:
- Oncology
- Nuclear Medicine
- Radiology
Background:
- Superinfected tumors present diagnostic challenges, particularly in patients with a history of cancer.
- Distinguishing between tumor recurrence and infection can be difficult using standard imaging techniques.
Observation:
- A patient with prostate cancer presented with right mandibular pain and swelling.
- Initial imaging (orthopantomography, CT) showed no bone defects, but bone scanning revealed increased uptake in the mandible and other skeletal sites.
- Antigranulocyte immunoscintigraphy showed uptake in the mandible, while other metastatic sites were cold spots.
Findings:
- A follow-up CT scan showed a sclerotic lesion with periosteal reaction and soft-tissue swelling, leading to an initial diagnosis of osteomyelitis.
- Despite clinical symptoms and imaging findings suggestive of osteomyelitis, a biopsy confirmed prostate cancer metastasis with significant leukocytic infiltration.
Implications:
- This case underscores the importance of integrating all diagnostic data, including biopsy results, when evaluating suspected superinfected tumors.
- Accurate differentiation between metastatic disease and infection is crucial for appropriate patient management and treatment planning in oncology.