Testis Flashcards
Testis lymphaetic drainage
Lymph node (LN) drainage.
Left testicle: testicular vein → left renal vein → paraaortic LN.
Right testicle: testicular vein → IVC below level of renal vein → paracaval and aortocaval nodes.
Prior inguinal surgery may disrupt drainage and redirect through iliac nodes.
Testicular carcinoma type
A. Germ cell tumors:
1. seminoma: 45% -classical, spermatocytic, may be anaplastic
2. NSGCT(non -seminomatous germ cell tumor)55%
——
Embryonal cell carcinoma
Polyembryoma
Yolk sac tumor
Choriocarcinoma
Teratoma
B. Sex cord stromal tumors (3-4%)
- well differentiated gonadal stromal neoplasm
-gonadoblastoma, thecoma
-mixed forms
-undifferentiated
C. Others
-para testicular rhabdomyosarcoma
-non hodgkins lymphoma
-adenocarcinoma of rete testis
-mesothelioma (tunical vaginalis)
Good prognostic factors in nsgct
Good prognosis All must be met: Testis or retroperitoneal primary No non-lung visceral mets AFP < 1,000, hCG < 5,000, LDH <1.5× normal 5 yr PFS: 89%
Poor prognostic factor in nsgct
Poor prognosis Mediastinal primary or non-lung visceral mets or any of the following: AFP > 10,000 or hCG > 50,000 or LDH >10× normal 5 yr PFS: 41%
RT dose for seminoma
Dose: For seminoma
Stage I: 20 Gy 10 # 2 weeks.
Stage II A: 30 Gy in 15 # in 3 wks.
Stage II B: 36 Gy in 18 # in 3 2 wks (for residual disease after CT)*
Scrotal irradiation with electron therapy using a lead cut-out-30 Gy in 15 # in 3
1st line chemo for seminoma
Chemotherapy: Regimens are-1 line
BEP:
Bleomycin 30 unit IV bolus D1,8,15 Etoposide 100 mg/m² IV D1-5
Cisplatin 20 mg/m² over 30 min infusion D1-5. Repeated every 21 days. 3 (good risk patients) OR 4 (intermediate /poor risk) cycles. For good risk patients particularly with seminoma required CT 4 cycles of etoposide & cisplatin
EP: (dose-same as BEP)
without Bleomycin
2nd line chemotherapy for testicular cancer
TIP( pacli, ifos, cpl) VeIP: vinblastine, ifosfamide, CPL High dose chemotherapy regimen - carboplatin, etoposide - paclitaxel, ifosfamide, carboplatin, etoposide
Causes of secondary metastasis in testis
Small cell lung cancer
Melanoma
Leukemia
Prostate
Kidney
Site of extragonadal germ cell tumor 10%
CNS: cranium, pineal gland, meninges, suprasellar region(pituitary)
Thyroid
Mediastinum : mostly anterior mediastinum
Retroperitoneum
Sacrum, paranasal sinus, soft tissue of head and neck
Which of the tumor has no stage IV
Testicular carcinoma
Germ cell tumor
Thyroid carcinoma
D/d of testicular mass
Epididymitis
Orchitis, hydrocele, vericocele,
Lymphoma, leukemia
Metastasis: from melanoma, lung
BEP schedule details
2 different types found:
BEP weekly basis
Bleomycin 30mg IV bolus D1,8,15
Etoposide 100 mg/m2/d D1-5 or 120mg/m2 D1-5
Cisplatin 20mg/m2/d D1-5 or 40mg/m2 D1-5
(Remember 20,30,100 formula)
BEP 3 weekly basis
Bleomycin 15mg/day D1-3
Etoposide 120mg/m2 D1-3
Cisplatin 40mg/m2 D1-3
Intermediate prognostic factor for NSGCT
Testis/retroperitoneal/ non mediastinal primary
And
No non pulmonary visceral mets and
AFP: 1000-10000 ng/ml
HCG: 5000-50000 u/L
LDH: 1.5 to 10 X upper limit of normal
It occurs in 28% of melanoma