Genital System

Question 1

Hypospadias

Answer 1

Urethra opens in ventral aspect of penis

Question 2

Epispadias

Answer 2

Urethral opening on dorsal aspect of penis

Question 3

Balanitis

Answer 3

Inflammation of glans of penis

Question 4

Balanoposthitis

Answer 4

Inflammation of prepuce

Question 5

Phimosis

Answer 5

Prepuce cannot be retracted

Most cases are acquired from balanoposthitis

Question 6

Factors related to squamous cell carcinoma

Answer 6

Poor hygiene
Smoking
HPV 16 and 18
Uncircumcised older than 40y

Question 7

Bowen disease

Answer 7

Squamous cell carcinoma in situ

Erythoplasia of Queyrat

Question 8

Most common testicular tumors in post pubertal males 95%

Answer 8

Germ cell -> are all malignant

Question 9

Uncommon and benign testicular tumors

Answer 9

Sertoli and Leydig (sex-cord stromal tumors)

Question 10

Seminoma

Answer 10

peak age 40-50

morphology : sheet of uniform polygonal cells with cleared cytoplasm: lymphocytes in storm

Question 11

Embryonal carcinoma

Answer 11

peak age : 20-30
Morphology : Poorly differentiated
pleomorphic cells in cords

Question 12

Yolk sac tumor

Answer 12

Peak age: 3 years
Morphology : Poorly differentiated endothelium like, cuboidal or columnar cells
90% have elevated AFP

Question 13

Choriocarcinoma

Answer 13

peak age : Cytotrophoblast and syncytiotrophoblast without villus formation
100% have hCG elevated

Question 14

Teratoma

Answer 14

all ages

Tissues from all three germ cell layers

Question 15

Mixed tumors

Answer 15

Peak age : 15-30
Variable
commonly : teratoma + embryonal carcinoma
90% have elevated AFP and hCG

Question 16

Schiller Duval bodies

Answer 16

Resembling primitive glomeruli found in Yolk sac tumors