Testicular Mass Workup and Treatment
Any solid testicular mass identified on physical exam or imaging must be managed as malignant until proven otherwise, requiring immediate scrotal ultrasound with Doppler and serum tumor markers (AFP, hCG, LDH) drawn before any intervention, followed by radical inguinal orchiectomy as the definitive diagnostic and therapeutic procedure. 1
Initial Diagnostic Workup
Immediate Steps for Suspected Testicular Mass
Scrotal Ultrasound with Doppler (Strong Recommendation)
Serum Tumor Markers (before any treatment including orchiectomy)
Pre-Treatment Counseling
Special Scenarios
Indeterminate findings with normal tumor markers: Repeat imaging in 6-8 weeks rather than immediate surgery 1
Small masses <2 cm: 50-80% are benign; management options include serial ultrasound at 6-8 weeks, inguinal orchiectomy, or testis-sparing surgery with frozen section in highly selected cases 1
Testicular microlithiasis alone: Does NOT require further evaluation unless risk factors present (cryptorchidism, family history, personal history of GCT) 1
Definitive Treatment of Primary Tumor
Radical Inguinal Orchiectomy (Standard of Care)
- Inguinal approach mandatory - scrotal approach increases local recurrence 2
- Divide spermatic cord at internal inguinal ring
- Provides histological diagnosis and primary treatment
- Repeat tumor markers post-orchiectomy considering half-life kinetics 2
Testis-Sparing Surgery (Highly Selected Cases Only)
Acceptable indications:
- Solitary testis with mass <2 cm AND normal preoperative testosterone 2
- Bilateral tumors
- Equivocal ultrasound/physical exam with negative tumor markers 1
- Indeterminate small masses with normal contralateral testis
Requirements:
- Intraoperative frozen section analysis
- At least two additional biopsies from remaining testis to exclude GCNIS 2
- Excellent patient compliance
- Performed only in experienced centers
Contraindication: Routine testis-sparing surgery is NOT appropriate for confirmed malignancy with normal contralateral testis
Staging After Orchiectomy
Imaging for Staging
Seminoma:
- CT abdomen/pelvis with IV contrast OR MRI abdomen/pelvis without and with IV contrast (equivalent alternatives) 3
- Chest X-ray (complements abdominal imaging) 3
- Lymph nodes >1 cm in short axis highly suspicious for metastases 3
Non-Seminoma:
- CT abdomen/pelvis with IV contrast OR MRI abdomen/pelvis without and with IV contrast 3
- Chest X-ray OR CT chest with IV contrast 3
- More aggressive imaging given higher metastatic potential
Prognostic Classification
Good Prognosis Seminoma (90% of cases):
- Any primary site
- No non-pulmonary visceral metastases
- Normal AFP, any hCG, any LDH
- 5-year survival 86% 1
Good Prognosis Non-Seminoma (56% of cases):
- Testis/retroperitoneal primary
- No non-pulmonary visceral metastases
- AFP <1000 ng/ml, hCG <5000 IU/L, LDH <1.5x upper limit normal
- 5-year survival 92% 1
Treatment by Stage
Stage I Seminoma (Low-Risk)
Primary recommendation: Surveillance 4
- Tumor <4 cm without rete testis invasion = 12% relapse risk
- Tumor >4 cm with rete testis invasion = 32% relapse risk 5
Alternative options for patients unsuitable for surveillance:
- Single cycle carboplatin AUC 7 5, 4
- Adjuvant radiotherapy to para-aortic strip (20 Gy/10 fractions) - carries long-term risk of secondary malignancy 5
Stage I Non-Seminoma
Low-risk (no vascular invasion):
- Surveillance is recommended - 12% relapse rate 4
- Alternative: One cycle BEP if patient unsuitable for surveillance
High-risk (vascular invasion present):
- 40-50% relapse rate with surveillance 4
- Adjuvant chemotherapy with one cycle BEP reduces relapse to <5% 4
- Alternative: Nerve-sparing RPLND in highly experienced centers (consider for somatic transformation in primary tumor) 4
Stage IIA-IIB Seminoma
- Stage IIA: Radiotherapy (dogleg technique, 30-36 Gy) OR chemotherapy (3 cycles BEP or 4 cycles EP) 5
- Stage IIB: Chemotherapy preferred (3 cycles BEP or 4 cycles EP) 4
- Participation in clinical trials encouraged to reduce toxicity 4
Stage IIC-III (Metastatic Disease)
Chemotherapy regimens:
- 3-4 cycles BEP (bleomycin 30,000 IU days 1,8,15; etoposide 100 mg/m² days 1-5; cisplatin 50 mg/m² days 1-2) 5
- 4 cycles EP (omit bleomycin in older patients or poor lung function due to pneumonitis risk) 5
Surveillance Protocols
Stage I Seminoma on Surveillance
Years 1-2:
- History and physical every 4-6 months
- CT abdomen ± pelvis every 4-6 months 1
- Chest imaging and tumor markers as clinically indicated 1
Years 3-5:
- History and physical every 6-12 months
- CT abdomen ± pelvis every 6-12 months 1
Stage I Non-Seminoma on Surveillance
Year 1:
- Physical exam and tumor markers (AFP, hCG ± LDH) every 2-3 months 1
- Chest X-ray and abdomen ± pelvis imaging every 3-6 months starting at 3 months 1
Year 2:
Year 3:
Years 4-5:
Higher-risk patients (lymphovascular invasion) require shorter imaging intervals 1
Critical Pitfalls to Avoid
- Never biopsy through scrotal approach - use inguinal exploration with frozen section if uncertain 2
- Never delay tumor marker collection - must be drawn before orchiectomy 1
- Never skip fertility counseling and sperm banking - particularly critical before orchiectomy in solitary testis 1
- Never assume microlithiasis alone requires intervention - only evaluate if risk factors present 1
- Never use MRI as first-line imaging - scrotal ultrasound with Doppler is the standard 1
- Never perform testis-sparing surgery without frozen section capability and experienced surgeon 2
- Relapsed patients must be fully restaged and treated based on new TNM-s status 1
Post-Treatment Considerations
- Disease-specific survival approaches 100% for stage I seminoma regardless of management strategy 3
- Most seminoma relapses occur in abdominal/pelvic lymph nodes 3
- 95% of non-seminoma relapses after surveillance belong to good prognosis group 4
- Long-term surveillance required for minimum 5 years due to late relapse potential 1, 5