Ultrasonic Manifestations of Prostate Rhabdomyosarcoma: A Case Report and Literature Review.
Yunpeng Zhao, Wenjing Pang, Tiangang Li
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Case in brief
An adult with prostatic rhabdomyosarcoma was evaluated after nonspecific early manifestations that can resemble benign prostatic disorders. Ultrasound showed a heterogeneous hypoechoic mass with abundant blood flow and contrast wash-in and wash-out; MRI demonstrated mixed signal intensity and diffusion-weighted imaging hyperintensity. Because these imaging features overlap with prostate cancer, sarcomatoid carcinoma, and other conditions, imaging alone was not specific. The report emphasizes integrating clinical history, multimodal imaging, and pathological biopsy for diagnosis and staging; the abstract does not describe the patient’s treatment or outcome.
What made this case unusual
The report highlights the ultrasound and MRI appearance of adult prostatic rhabdomyosarcoma, including contrast wash-in and wash-out, while stressing that these findings are not specific and overlap with other prostatic malignancies.
Diagnostic / clinical pearl
A suspicious prostatic mass with malignant ultrasound features does not establish rhabdomyosarcoma; correlate clinical findings with MRI and confirm the diagnosis by pathological biopsy.
Why it matters
Nonspecific early manifestations and overlapping imaging appearances can lead to misdiagnosis as benign prostatic disease, making a combined diagnostic assessment important for accurate staging.