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68 Cards in this Set
- Front
- Back
2 kinds of testicular tumors
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germ cell
non-germinal |
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___% of testicular tumors are germ cell. they are the most common tumor in men aged ___. mortality is ___%
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90
15-34 10 |
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2 categories of germ cell tumors
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single histological pattern
mixed histological pattern |
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___% of germ cell tumors have a single histological pattern
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40
|
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the precancerous condition predisposing to GCT is
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intratubular germ cell neoplasia (ITGCN)
|
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___% of untreated ITGCN progresses to cancer
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50
|
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risk factors for ITGCN (4)
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cryptorchidism
family history androgen insensitivity gonadal dysgenesis |
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cryptorchidism causes ___ of seminiferous tubules, leaving only ___ preserved. it causes a relative increase of ___
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atrophy
sertoli cells leydig cells |
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___% of GCT is associated with cryptorchidism
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10
|
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the lower the testis has descended the ___ the risk of cancer
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lower
|
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___ is a chromosomal abnormality found in almost all GCTs.
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isochromosome of short arm of 12
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classic seminomas are positive for
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PLAP
c-Kit (CD117) OCT3/4 |
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in contrast to classic seminomas, spermatocytic seminomas ___
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are negative for PLAP, OCT3/4
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compared to seminomas, embryonal carcinomas are ___ (2)
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much more aggressive
smaller |
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T/F: embryonal carcinomas never extend to epididymis or beyond
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false
|
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histological formations in embryonal carcinoma
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undifferentiated
tubular papillary |
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syncitiotrophoblast may be present in ___ (3)
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seminoma
embryonal carcinoma choriocarcinoma |
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markers in embryonal carcinoma (4)
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PLAP
OCT3/4 CD30 cytokeratin |
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OCT3/4 is a ___ expressed in ___ (3)
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transcription factor
primordial germ cells seminomas embryonal carcinomas |
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___ is the most common tumor in children under 3
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yolk sac tumor
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in children, yolk sac tumors have ___ prognosis
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good
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in adults yolk sac tumors occur in the context of ___
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mixed tumor with embyronal carcinoma
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histologically, yolk sac tumors have a ___ pattern
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microcystic
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___% of yolk sac tumors have ___ bodies, which feature ____ epithelia as found in ___. ___ globules are also present
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50
Schiller-Duval parietal and visceral glomeruli hyaline |
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markers for yolk sac tumor
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AFP
cytokeratin PLAP |
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choriocarcinoma is ___ in testes and ___ in ovaries
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rare
more common |
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choriocarcinoma is usually found as ___
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foci in mixed tumor
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markers for choriocarcinoma
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hCG
cytokeratin PLAP |
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in children, ___ teratomas are benign for males and ___ teratomas are benign for femals. in adults, ___ teratomas are malignant
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all
mature all |
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common mixed tumors (3)
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embryonal carcinoma + seminoma
embryonal carcinoma + teratoma embryonal carcinoma + teratoma + yolk sac |
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prognosis in mixed GCTs depends on
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presence of aggressive tumor types
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T/F: seminoma has much better prognosis than nonseminoma
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true
|
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lymphatic metastases from GCTs go to ___ (3)
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retroperitoneal para-aortic LN
mediastinal LN subclavicular LN |
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hematogenous metastases from GCTs go to ___ (4)
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lungs
liver brain bones |
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T/F: histology of metastases is the same as the primary tumor
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false
|
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seminomas spread primarily through ___
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lymphatics
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nonseminomas spread primarily through ___
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blood and lymphatics
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BPH happens at the ___ zone, aka ___, located ___. This explains ___.
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transition
urethral prostate where urethra enters from bladder rapid urinary symptoms |
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Tumors develop at the ___ zone, located ___. ___ is used to detect them.
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peripheral
dorsally and away from urethra PSA |
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BPH is hyperplasia of ___ (2). It is caused by ___, which is made in ___.
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epithelium
stroma DHT stroma |
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___% of those with BPH have symptoms
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50
|
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DHT is ___ times more potent than testosterone, because ___.
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10
higher receptor affinity |
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BPH can present as ___ or ___
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fibromuscular nodules
epithelial nodules |
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in BPH, ___ is preserved
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basal layer
|
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T/F: BPH can be diagnosed on the basis of needle biopsy.
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false
|
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___ is the most common cancer in men
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prostatic adenocarcinoma
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prostatic adenocarcinoma is the ___ most lethal cancer in men
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2nd
|
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___% of men age 50-59 have asymptomatic prostatic adenocarcinoma, and ___% of men age 70-80
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20
70 |
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susceptibility genes for PCa are located on chromosome ___. tumor suppressor genes commonly downregulated are located on chromosmes ___ (4)
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1
8 10 13 16 |
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T/F: p53 is commonly inactivated in early stage of PCa.
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false
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T/F: Her2/Neu is not commonly overexpressed in PCa
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true
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using ___ technology, the genes overexpressed in PCa were found to be ___ (2)
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cDNA microarray
hepsin alpha-methyl acyl CoA racemase (p504) |
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hepsin is a ___
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transmembrane Ser protease
|
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a gene commonly suppressed in PCa is ___. suppression occurs via ___
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glutathione S transferase (GSTP1)
hypermethylation of promoter |
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glands in PCa are ___ with ___ layers of ___ or ___ epithelium
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small
1 cuboidal columnar |
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T/F glands in PCa are pleomorphic with mitotic figures
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false
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the most important feature in diagnosing PCa is ___
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absence of basal cells
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a positive marker for PCa is ___
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p504
|
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immunostains for basal cells label ___
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keratin
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gleason scores range from ___ to ___
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2
10 |
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gleason scores of less than 4 have a ___% probability of progression, 5--7 have a ___% probability, and >7 have a __% probability
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25
50 75 |
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the precursor lesion for PCa is called ___. it is present in ___% of tissue removed for PCa biopsy
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prostatic intraepithelial neoplasia (PIN)
80 |
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in PIN, ___ is preserved
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basal layer
|
|
in stage II, PCa is present in ___, but in stage III it may be present in ___ (2) also
in stage IV it may be present in ___ (3) |
prostate
bladder seminal vesicles colon pubis other organs |
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PCa spreads by ___ (3)
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direct local invasion
hematogenous spread lymphatic spread |
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PCa spreads hematogenously to ___, specificially ___ (5)
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bone
lumbar spine proximal femur pelvis thoracic spine ribs |
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PCa spreads lymphatically to ___ (6)
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obturator LNs
perivseical LNs hypogastric LNs iliac LNs presacral LNs paraaortic LNs |
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PCa bone metastases are usually ___
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osteoblastic
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