1.4.2 Testicular Neoplasia Flashcards

1
Q

What type of therapy is used to treat testicular tumors?

A

Platinum based therapy

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2
Q

What age group is responsible for 90% of testicular cancers?

A

20-50 y/o (if a tumor is found in the testis after the age of 50, it is probably a metastases

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3
Q

How does a seminoma present?

A

Testicular enlargement or nodular mass that causes the patient dull pain or minor discomfort

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4
Q

What is the most common type of germ cell tumor?

A

Seminoma (composed of one cell type)

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5
Q

What type of tumor?

A

Leydig cell tumor

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6
Q

What are the four types of germ cell testicular tumors?

A

Intratubular germ cell neoplasia (ITGCN), seminoma, nonseminomatous germ cell tumors, mixed seminoma

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7
Q

Identify

A
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8
Q

Which cells are malignant? Describe their appearance

A

Fried egg appearance (precursor to germ cell tumor)

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9
Q
A

1 C

2 C

3 B

4 B

5 D

6 D

7 C

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10
Q

90% of tumors are from what type of cell?

A

Germ cells

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11
Q

What type of tumor?

A

Sertoli cell tumor

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12
Q

What this be?

A

Seminoma in a bisected testis

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13
Q

What are the four different cell types that could give rise to testicular tumors?

A

Germ cells, Sertoli cells, Leydig cells, Stromal cells (rare)

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14
Q

What is this?

A

Teratoma - embryonal carcinoma cells

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15
Q

What is the cure rate in seminomas?

A

90%

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16
Q

What are the two types of sex cord cell tumors (which accounts for 5% of testicular cancers)?

A

Leydig cell tumor, Sertoli cell tumor

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17
Q

Identify A-E

A
18
Q

Identify the three regions

A
19
Q

What % of sex chord tumors are benign?

A

90%

20
Q

During the years of 25-50, where does testicular cancer rank among malignant cancers in men?

A

4th

21
Q

What are the common metastatic locations of germ cell tumors?

A

Paraaortic lymph nodes then solid organs (lung, brain, liver)

22
Q

Identify the two cell types in this seminoma

A

Top: tumor cells

Bottom: lymphocytes

23
Q

What is this?

A

Non-seminomatous germ cell tumor

24
Q

What is the most common type of sex chord tumor

A

Leydig > Sertoli

25
Q

What serologic marker is used to identify seminoma?

A

Trick question. There isn’t one

26
Q

What type of tumor is the yolk sac tumor?

A

childhood tumor (w/ AFP)

27
Q

What are the two serological markers of nonseminomatous germ cell tumor?

A

AFP and hCG

28
Q

Identify

A
29
Q

Which cells play a support function?

A

Sertoli cells and smooth muscle cells of the lamina propria

30
Q

What this be?

A

Seminoma (septa contain lymphocytes, tumor cells form lobules)

31
Q

Which cells secrete testosterone?

A

Leydig cells

32
Q

Identify the different cell types present

A
33
Q

What are the three risk factors for testicular germ cell tumors?

A

cryptochordism, gonadal dysgenesis, sex chromosome and genetic disorders

34
Q

What are the effects of leydig cell tumors in prepubertal children? Adults?

A

Prepubertal: precocious puberty, macrogenitosomia

Adults: gynecomastia

35
Q

What are the sex cord and germ cell tumors?

A
36
Q

What cell type?

A

Embryonal carcinoma cells

37
Q

What are the clinical features of a seminoma?

A
38
Q

What are the characteristics of Leydig cell tumor?

A
39
Q

Schiller Duval Body is characteristic of?

A

Yolk Sac Tumor

40
Q

What are the characteristics of Embryonal Carcinoma?

A

Malignant Tumor comprised of immature, primitive cells that produce glands

Forms hemorrhagic mess with negrosis

Could have elevated AFP or hCG

41
Q

What are the characteristics of Yolk sac tumor?

A

Resembles yolk sac elements

Most common in children

Schiller-Duval Bodies

AFP is elevated

42
Q

What are the characteristics of a Choriocarcinoma?

A

Malignant tumor of the syncytiotrophoblasts and cytotrophoblasts.

hCG is characteristially elevated leading to hyperthyroidism or gynecomastia