False-negative bone image with radiographically evident osteoblastic lesions in prostatic carcinoma

Area of Science:

• Oncology
• Radiology
• Nuclear Medicine

Background:

• Prostatic carcinoma is a common malignancy in men.
• Bone metastases are frequent in advanced prostate cancer, often presenting as osteoblastic lesions.
• Bone scintigraphy is a standard imaging modality for detecting bone metastases.

Observation:

• A unique case of prostatic carcinoma with radiographically evident osteoblastic bone lesions is described.
• A bone scan performed for staging or evaluation yielded a false-negative result despite the presence of these lesions.

Findings:

• The study documents a discrepancy between radiographic findings (osteoblastic lesions) and bone scan results (false-negative).
• This highlights potential limitations of bone scintigraphy in specific presentations of metastatic prostate cancer.

Implications:

• Clinicians should be aware of potential false-negative bone scans in prostatic carcinoma with osteoblastic metastases.
• Radiographic imaging may be crucial for confirming or refuting bone scan findings in equivocal cases.
• This case underscores the importance of integrating multiple imaging modalities for accurate cancer staging.