Testicular Cancer: Overview, Types, Risk Factors, Symptoms, Diagnosis, and Treatment

Testicular cancer, most common in men aged 15-35, involves abnormal cell growth in the testicles. There are two main types: germ cell tumors (seminoma and non-seminoma) and non-germ cell tumors. Risk factors include family history, undescended testicle, and Klinefelter syndrome. Symptoms include a painless lump, scrotal swelling, and abdominal pain. Diagnosis involves a physical exam, blood tests, ultrasound, and sometimes a CT scan. Treatment includes surgery, chemotherapy, and radiation, with high survival rates exceeding 95%. Regular follow-up is essential due to recurrence risks, and self-examination is recommended for early detection.

Testicular cancer is a rare cancer but the most common among men aged 15 to 35. It is characterized by abnormal growth of cells in the testicles, which are part of the male reproductive system responsible for sperm production and testosterone secretion.

Risk Factors:

  • Personal or Family History: Increases the risk of testicular cancer.

  • Cryptorchidism (Undescended Testicle): Increases the risk, even if corrected surgically.

  • Klinefelter Syndrome: Increases the likelihood of developing testicular cancer.

  • Race: White men are more likely to develop testicular cancer compared to men of other races.

  • Exposure to Certain Chemicals: May increase the risk, though evidence is not strong.

Symptoms:

  • Lump or Swelling in One Testicle: Often painless and the most common symptom.

  • Pain or Heaviness in the Scrotum.

  • Abdominal or Groin Pain: May occur.

  • Sudden Fluid Accumulation in the Scrotum.

  • Advanced Symptoms: If the cancer has spread, symptoms may include back pain or shortness of breath due to spread to the lungs.

Diagnosis:

  1. Physical Examination: The doctor examines the testicles for lumps or changes.

  2. Laboratory Tests: Includes checking levels of tumor markers such as alpha-fetoprotein (AFP), beta-Human Chorionic Gonadotropin (Beta-hCG), and lactate dehydrogenase (LDH) in the blood.

  3. Imaging Studies:

    • Scrotal Ultrasound: The primary test to determine the nature of the lump.

    • CT Scan: Used to assess the extent of cancer spread to lymph nodes or other organs.

  4. Biopsy: Rarely performed as most testicular cancer is diagnosed based on imaging and lab results and is treated directly with surgery.

Staging:

Staging of testicular cancer uses the TNM system to evaluate the spread within and outside the testicle:

  • Stage I: Confined to the testicle.

  • Stage II: Spread to abdominal lymph nodes.

  • Stage III: Spread to distant organs such as the lungs or liver.

Treatment:

Treatment depends on the type and stage of the cancer and typically involves a combination of surgery, chemotherapy, and sometimes radiation therapy.

  1. Surgery:

    • Radical Inguinal Orchiectomy: The primary treatment for all stages of testicular cancer, involving removal of the affected testicle through a small incision in the groin.

    • Retroperitoneal Lymph Node Dissection (RPLND): May be needed in some cases, especially for non-seminomas.

  2. Chemotherapy:

    • Used in advanced cases or if the cancer has spread after surgery. Effective especially for non-seminoma tumors.

  3. Radiation Therapy:

    • Mainly used for seminomas in early stages or if there is enlarged lymph nodes.

Follow-Up:

Post-treatment, patients need regular follow-up due to the risk of recurrence. Follow-up includes:

  • Regular tumor marker tests.

  • Imaging studies.

  • Physical exams.

Survival and Prognosis:

Testicular cancer is highly treatable, even in advanced stages, with five-year survival rates exceeding 95% due to effective treatments.

Side Effects and Complications:

  • Infertility: May result from chemotherapy or surgery, so sperm banking is recommended if future fertility is desired.

  • Hormonal Changes: Removal of a testicle can lead to lower testosterone levels, possibly requiring hormone replacement therapy.

  • Chemotherapy Side Effects: Such as nausea, hair loss, and fatigue.

Prevention and Early Detection:

  • Self-Examination: Recommended for men, especially those with risk factors, to detect lumps or changes early.

  • Avoiding Smoking: May help reduce the risk.

  • Managing Medical Conditions: Such as undescended testicle, which may increase risk.

Testicular cancer is highly curable if detected and treated early. A comprehensive treatment approach that combines surgery with chemotherapy or radiation achieves excellent results, underscoring the importance of awareness and regular monitoring to improve survival chances.

Dr. Ashraf Al-Zayed
Your Way to Happiness