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Updated: Feb 23, 2026

Utilization of Ultrasound Guided Tissue-directed Cellular Implantation for the Establishment of Biologically Relevant Metastatic Tumor Xenografts
Published on: May 25, 2018
[Paratesticular sarcoma with synchronous renal carcinoma.]
Juan Astigueta1, Milagros Abad-Licham2, Lenin Fernández3
1Servicio de Urología Oncológica. Instituto Regional de Enfermedades Neoplásicas.Facultad de Medicina. Universidad Privada Antenor Orrego. Scientia Clinical and Epidemiological Research Institute.Trujillo-Perú.
This case study highlights a rare instance of paratesticular undifferentiated pleomorphic sarcoma (UPS) occurring alongside renal carcinoma. The patient achieved disease-free status after multidisciplinary treatment, including surgery, chemotherapy, and radiotherapy.
Area of Science:
- Oncology
- Uropathology
Background:
- Primary paratesticular undifferentiated pleomorphic sarcoma (UPS) is exceptionally rare.
- Synchronous malignancies of the urinary tract and paratesticular region are uncommon.
- Co-occurrence complicates diagnosis, staging, and treatment planning.
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