3. Skin
DARTOS Muscle
External Spermatic Fascia
Cremastric Muscle
Internal Spermatic Fascia
Tunica Vaginalis
Tunica Albuginea
Coverings of testis
4. Structure of testis
• 200-300 lobules
• Each lobule has 2-3 seminiferous tubules
• Each seminiferous tubules lined by cell in
different stages of spermatogenesis
• Among the seminiferous tubules are Sertoli
cells.
• Between the loops of the seminiferous
tubules are interstitial cells, produce
testosterone.
6. Lymphatic Drainage
Drain into the retroperitoneal lymph glands between the
levels of T11 and L4, but they are concentrated at the level
of the L1 and L3 vertebrae
7. Testicular Tumor
INTRODUCTION
Testicular cancer forms about 1 -1.5% of all malignancies in males
Incidence – 0.6 per 100000
Mortality – 0.3 per 100000
Cure rate increased with introduction of platinum based chemotherapy from 10 to 80%
8. EPIDEMOLOGY OF TESTICULAR CANCER
• Age: for GCT: median age at diagnosis is 34 years.
• Age - 3 peaks
2 – 4 yrs
20 – 40 yrs
above 50 yrs
In a man age: 50 years or older solid testicular mass is usually
lymphoma
• Race: more common in young white men ,less in African .
10. Predisposing Factors
1. Cryptorchidism
2. Klinefelter syndrome
3. Positive family history
4. Contralateral germ cell tumor
5. Trauma
6. Viral infection
7. Hormonal factors
8. Exposure to environmental oestrogen
11. Predisposing Factors
1. Cryptorchidism
• This risk is further increased if the testis is intra-abdominal.
• Abdominal testis is more likely to be seminoma, testis brought to
scrotum by orchiopexy is more likely to be NSGCT.
• There is still an increased risk of developing a tumour in the
contralateral normally descended testicle in pt. with cryptorchidism
• Prepubertal orchidopexy fails to prevent the subsequent development
of malignancy
14. Seminoma
The commonest variety of testicular tumour
Adults are the usual target (4th and 5th decade); never seen in infancy
Starts in the mediastinum: compresses the surrounding structure.
Patients present with painless testicular mass
30 % have metastases at presentation, but only 3% have symptoms related to
metastases
15. Seminoma
• Serum alpha fetoprotein is normal
• Beta HCG is elevated in 30% of patients with Seminoma
• Classification
a) classical
b) Anaplastic
c) Spermatocytic
16. Gross appearance of seminoma. The tumor in A is very small,
whereas that in B has replaced most of the testis
17. Embryonal Carcinoma
2nd most common germ cell tumor 90% of NSGCT
Most men present in their 20s to 30s with a testicular mass
Highly malignant tumours; may invade the cord stuctures.epidydymis
High degree of metastasis
Serum AFP is positive in 33%, & beta HCG is elevated in 20% of cases
19. Yolk Sac Tumour
Most common germ cell tumor ( & most common testicular tumor ) in children,
• 60% of GCT in children. First 2 years of life.
• #<2% of testicular tumors in adults
• Elevated serum levels of alpha-fetoprotein.
• Microscopically, Schiller-Duval bodies are a characteristic feature
Testicular mass the most usual presentation.
20. YOLK SAC TUMOR
• MACROSCOPIC :
white to tan masses,
with myxoid & cystic
changes
22. The cut surface of this adult yolk sac tumor shows areas of hemorrhage and cystic change.
23. Choriocarcinoma
A rare and aggressive tumour (5yrs survival is 5%)
Typically elevated hCG
Primary is very small and often exhibit NO TESTICULAR
ENLARGEMENT
Small palpable nodule may be present
Presents with disseminated disease.
Prone to hemorrhage.
25. Teratoma
Teratoma in greek means “monster tumor”
Contain all three germ layers with varying degree of
diffrentiation
Occurs in its pure form in pediatric age group.
In adults, occur as a component of mixed germ cell tumor.
Normal serum marker
◦ Mildly elevated AFP levels
26. Interstitial cell tumors
1. Leydig cell tumors
Presents with painless testicular mass
A masculinising tumor, produces androgens
Precocious puberty
Prominent external genitalia
Deep masculinised voice
Pubic hair
Gynacomastia and decreased libodo due to oestrogen production by
increased peripheral conversion
27. LEYDIG CELL TUMOR
• MACROSCOPIC :
1. Leydig cells impart a
golden brown colour.
tumor is solid &
lobulated
2. Necrosis can be seen in
malignant tumors
28. Interstitial cell tumors
2. Sertoli Cell Tumor
can occur in any age group including infants
It is a faminising tumor
Excess estrogen production
Gynacomastia in 1/3rd of cases
10 % are malignant
29. Interstitial cell tumors
3. Gonadoblastoma
Mixed germ cell.
Composed of seminoma like germ cells and Sertoli cells.
Exclusively in patients with dysgenic gonads and intersex syndromes
80% are phenotype females with primary amenorrhoea
20% are males with crytochordism and dysgenic gonads and hypospadias
Bilateral orchidectomy because of risk of bilateral tumours.
30. LYMPHOMA
• CLINICAL :
1. Lymphoma most often result of secondary spread; occasionally ,
primary lymphoma may occur
2. Most men are in their 60s
3. Involvement is bilateral in 20 % of all cases
32. Spread
1. Direct spread
2. Lymphatic spread
They drain primarily to para-aortic lymph nodes
No inguinal nodes until scrotal skin involvement
Seminoma metastasize exclusively through
lymphatics
3. Blood Spread
NSGCT spread through blood route
Lungs, liver, bones and brain are the usual sites usually involved
33. CLINICAL FEATURES
Painless Swelling of Testes
Dull Ache or Heaviness in Lower Abdomen
10% - Acute Scrotal Pain
10% - Present with Metatstasis
• - Neck Mass / Cough / Anorexia / Vomiting / Back Ache/ Lower limb swelling
5% - Gynecomastia
Rarely - Infertility
December 16 33Recent advances in the management of Testicular tumor
34. Clinical Features
2. Due to metastasis
Abdominal or lumbar pain (lymphatic spread)
Dyspnoea, hemoptysis and chest pain with lung mets
Jaundice with liver mets
Hydronephrosis by para-aortic lymph nodes enlargement
Pedal oedema by IVC obstruction
35. Clinical Features
3. Clinical examination:
a) Enlarged testis (except choriocarcinoma)
b) Nodular testis
c) Firm to hard in consistency
d) Loss of testicular sensation
e) Secondary hydrocele
36. INVESTIGATIONS
1. Scrotal Ultrasound
2. CT Scan Abdomen & Pelvis
3. CT Thorax / Chest X-Ray - PA and lateral views
4. Tumour Markers
- AFP
- HCG
5. MRI/PET Scan
December 16 36Recent advances in the management of Testicular tumor
37. Human Chorionic
Gonadotropin
NORMAL VALUE: < 1 ng / ml
HALF LIFE of HCG: 24 to 36 hours
RAISED HCG -
100 % - Choriocarcinoma
60% - Embryonal carcinoma
55% - Teratocarcinoma
25% - Yolk Cell Tumour
7% - Seminomas
normal value: below 16 ngm / ml
half life of AFP – 5 and 7 days
Raised AFP :
Pure embryonal carcinoma
Teratocarcinoma
Yolk sac Tumor
Combined tumors,
AFP not raised in pure choriocarcinoma & in
pure seminoma
AFP –Alfa feto protein
38. ROLE OF TUMOUR MARKERS
• Helps in Diagnosis - 80 to 85% of Testicular Tumors have Positive Markers
• Most of Non-Seminomas have raised markers.
• Degree of Marker Elevation Appears to be Directly Proportional to Tumor Burden
• Normalization of tumor marker after high inguinal orchidectomy does not
ensure complete disease removal however after Orchidectomy if Markers
Elevated means Residual Disease
• Negative Tumor Markers becoming positive on follow up usually indicates -
Recurrence of Tumor
• Markers become Positive earlier than radiological studies
41. SURGICAL TREATMENT
Scrotal Exploration and orchidectomy for suspected
testicular tumor
• Radical orchiectomy
• Diagnostic and Therapeutic treatment of choice.
• Complete removal of ipsilateral epididymis and spermatic cord to the level
of the internal inguinal ring.
• Partial orchiectomy
• Considered in patient with polar tumor measuring 2 cm or less.
• Adjuvant radiotherapy is given postoperatively.
41
42. CHEMOTHERAPY
• Indications
• As an alternative to adjuvant RT for stages I–II seminoma
• Adjuvant therapy for stages II–IV seminoma
• Regimens
• Regimens including BEP, EP, PVB, and VIP for stages II–IV diseases
Drug/ combination Dose and schedule
Bleomycin 30 IU IV bolus on days 2,9,16
Etoposide 100 mg/m2 IV over 30 mins on
days 1-5
Cisplatin 20 mg/m2 IV over 15-30 mins
on days 1-5
Repeat cycle every 21 days for 3 or 4 cycles
December 16 42Recent advances in the management of Testicular tumor
43. RETROPERITONEAL LYMPH NODE DISSECTION
• The rationale for primary RPLND is that, in contrast to most malignancies, testicular GCT is
surgically curable in most patients with low volume regional metastases.
43
44. Fig. 8 Laparoscopic RPLND Port Placement
December 16 44Recent advances in the management of Testicular tumor
45. Fig. 9 Robotic assisted RPLND Port Placement
December 16 45Recent advances in the management of Testicular tumor
46. RADIATION THERAPY
• Seminoma is extremely radiosensitive. Radiation therapy is often used for adjuvant therapy for
early-stage seminoma, and its use in non-seminoma germ cell tumors (GCT) is limited.
December 16 46Recent advances in the management of Testicular tumor
47. • Fig. 10 Paraaortic and ipsilateral
inguinal field for stage II
left testicular seminoms,
with inclusion of the
renal hilus.
December 16 47Recent advances in the management of Testicular tumor