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Updated: Jun 12, 2025
A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound
Published on: March 21, 2025
Prostate Cancer Masquerading as Rectal Cancer.
Chengtao Feng1, Sheng Zhao, Zhiyong Deng
1Department of Nuclear Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China.
This case report details a diagnostic challenge where advanced prostate cancer mimicked rectal cancer on imaging. It emphasizes the importance of biopsy for accurate diagnosis, even with seemingly clear anatomical findings.
Area of Science:
- Oncology
- Radiology
- Urology
Background:
- Prostate cancer can present with atypical imaging findings.
- Distinguishing metastatic prostate cancer from other malignancies on anatomical imaging is crucial.
Purpose of the Study:
- To report a case of prostate cancer initially misdiagnosed as rectal carcinoma.
- To highlight imaging challenges in oncology.
Main Methods:
- Contrast-enhanced CT and MRI for anatomical assessment.
- Biopsy for definitive histological diagnosis.
- 18F-PSMA-1007 PET/CT for molecular imaging.
Main Results:
- Initial CT/MRI suggested rectal mass with bone metastases.
- Biopsy confirmed prostate acinar carcinoma.
- PSMA PET/CT showed mild uptake after treatment.
Conclusions:
- Prostate cancer can mimic other cancers on anatomical imaging.
- Histopathological confirmation is essential for accurate diagnosis.
- Molecular imaging aids in assessing treatment response.
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