Related Experiment Video
Updated: Jul 2, 2026

Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models
Published on: May 17, 2024
The impact of histopathologic diagnosis on the proper management of testis neoplasms
Giovanni Ponti1, Maurilio Ponzoni, Andrés Jm Ferreri
1Oncology Institute of Southern Switzerland, Bellinzona, Switzerland.
Background:
A 45-year-old man underwent a right orchiectomy for a rapidly growing testicular mass. After histologic and imaging examinations the patient was diagnosed with stage I (T1N0M0) seminoma. Approximately 2 months after surgery the patient began to complain of abdominal pain and a CT scan revealed a bulky retroperitoneal mass. The patient did not receive the planned prophylactic radiotherapy and was treated with combined cisplatin, etoposide and bleomycin chemotherapy; after the completion of this treatment he achieved complete remission. Three years later, and while still undergoing follow-up, the patient developed multiple neurological motor deficits.
Investigations:
Brain MRI and CT-guided biopsy.
Diagnosis:
Diffuse large B-cell lymphoma of the testis, relapsing in the central nervous system.
Management:
High-dose methotrexate alone or in combination with high-dose cytarabine.
Related Concept Videos
Testes: Histology
The spermatogenic cells, responsible for producing sperm, are...
Disorders of the Male Reproductive System
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...
