C62.90

Clinical Causes: Genetic factors, including family history of testicular cancer Undescended testicle (cryptorchidism), particularly if untreated Personal history of testicular cancer in the other testis History of certain abnormal testicular development or injury HIV infection or other immunosuppressive conditions

Key Symptoms: A painless lump or swelling in one testicle A feeling of heaviness or discomfort in the scrotum A dull ache or pain in the lower abdomen or groin A sudden collection of fluid in the scrotum (hydrocele) Enlargement or tenderness of the testicle Unexplained weight loss, fatigue, or other systemic symptoms in advanced cases

Diagnosis Path: Diagnosis typically involves a combination of clinical evaluation and diagnostic tests, including: - Physical examination to detect lumps, swelling, or abnormalities - Ultrasound imaging to assess the internal structure of the testicles - Blood tests measuring tumor markers such as AFP, hCG, and LDH - Fine needle aspiration or biopsy (though often avoided due to risk of spreading cancer cells) - Imaging studies like CT scans to check for metastasis The exact diagnosis may be challenging due to the unspecified nature of the tumor's location, requiring thorough assessment by healthcare professionals.

Treatment Protocols: Treatment options depend on the stage and type of the tumor and may include: - Surgical removal of the affected testis (orchiectomy) - Radiation therapy, particularly for seminomas - Chemotherapy to destroy cancer cells and prevent spread - Surveillance, especially in early stages, with regular follow-up exams and scans Multidisciplinary management is essential for tailored treatment plans to optimize outcomes and address potential side effects. Early detection and intervention can significantly improve prognosis.