Urology Flashcards

1
Q

How are testicular tumours treated and how do they present?

A

Always with orchidectomy (inguinal approach) followed by radiotherapy

Painless nodule, sometimes associated with hydrocele

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2
Q

What are the 2 tumour markers of testicular tumours?

A

AFP and B HCG

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3
Q

How does acute epididymis-orchitis present and which pathogen is the cause in most cases?

A

Hx of Dysuria and uretheral discharge. Swelling may be tender and eased by elevating the testis

Caused by Chlamydia and Gonorrhoea

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4
Q

What is the difference between orchitis and epididymis-orchitis?

A

Orchitis is viral

Often caused by underlying viral infections e.g. Mumps

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5
Q

What are the two types of testicular torsion and how are they treated?

A

Torsion of spermatic code: ABSENT cremasteric reflex

Torsion of testicular appendages: preserved reflex

Both treated by urgent surgical exploration

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6
Q

How do hydroceles present?

A
  • Non-painful
  • Soft fluctuant swelling
  • Transilluminates
  • Can get above it
  • Cannot palpate the testes
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7
Q

What is a secondary hydrocele?

A

Hydrocele not caused by genetic abnormality such as:
- Trauma (e.g. torsion)
- Infection
- Tumour

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8
Q

How can you differentiate between a hydrocele and epididymal cyst?

A

Epididymal cysts can be palpated separate to the testes

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9
Q

How are hydrocele’s managed?

A

In children where its due to a patent processus vaginalis, an inguinal approach is used to ligate the processus

In adults, scrotal approach to excise or plicate the sac (Jaboulay’s procedure)

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10
Q

Which condition are varicoceles associated with?

A

Renal cell carcinoma

This is why US kidneys is required as a follow up in at risk groups

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11
Q

What age group is mainly affected by testicular cancer and what is the most common type?

A

Affects men 20 - 30 years old

Most common are germ-cell tumours (Seminoma and Non-seminoma germ cell tumours)

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12
Q

What is the most common type of Germ cell tumour and how does it present?

A

Seminoma tumours (50%)

  • Avg age of Dx 40 years
  • LDH and HCG can be elevated (10-20%)
  • AFP is usually normal
  • Pathology shows sheet like cells containing lymphocytic inclusions and granulomas
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13
Q

What are the types of Non-seminomatous germ cell tumours and how do they present?

A

Types:
- Teratoma
- Yolk sac tumour
- Choriocarcinoma
- Mixed germ cell tumours

  • Affects 20-30 yr olds
  • AFP and HCG elevated in most cases
  • may contain ectopic tissue (i.e. hair)
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14
Q

In a patient 60yrs + with enlarged testes and CD20, what is the likely diagnosis?

A

Lymphoma

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15
Q

What childhood development issue is associated with testicular tumours?

A

Undescended testes

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16
Q

How is epididymis-orchitis managed?

A

Abx

Doxycycline +/- Ciprofloxacin

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17
Q

How are seminomas managed?

A

Orchidectomy + radiotherapy

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18
Q

How are non-seminomas managed?

A

Affect pts 20-30years, most commonly teratomas

Managed by Orchidectomy + chemotherapy

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19
Q

What are the 3 classifications of priapism?

A

Low flow:
- due to vent-occlusion and is MOST COMMON and often PAINFUL. >4hrs presentation requires emergency treatment

High flow:
- Due to unregulated arterial blood flow

Recurrent priapism:
- typically seen in sickle cell disease

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20
Q

What is the management of priapism?

A
  • Ice packs/cold showers
  • if due to low flow, blood may be aspirated from corpora
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21
Q

What is the medical management of BPH?

A

Tamsulosin (alpha blocker): relaxes bladder and prostate muscles. Works fast but NOT BE USED IN HYPOTENSIVE PTs

Finasteride (5-a-reductase inhibitors): causes prostate to shrink but takes time to work

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22
Q

What are the surgical managements of BPH?

A
  • TURP: indicated by renal insufficiency / Failure of medical management / Recurrent cystitis / Urinary retention (intractable)
  • Open Prostatectomy: for men with prostates too large for TURP +/- significant bleeding
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23
Q

How can prostate ca and BPH be clinically differentiated?

A

BPH: smooth enlarged prostate

Prostate ca: irregular and hard enlarged prostate

24
Q

What can cause a false positive raised PSA?

A

Prostatitis // UTI // BPH // vigorous exercise or DRE

25
How is PSA used to Dx prostate ca?
Measure PSA, if it is high, measure FREE PSA. If FREE PSA <20%, high suspicion of ca over BPH. Go for BIOPSY
26
Which part of the prostate is most often affected by cancer?
Peripheral zone (70%)
27
How is prostate ca graded?
Using GLEASON grading system Where 2 is best prognosis and 10 is the worst. The scoring is based on a scoring of 1-5 of the most dominant grade (differentiation of cells) and second most dominant grade added together for a score out of 10.
28
What are the 4 stages of prostate ca and how are they managed?
Stage 1: only seen on intracapsular microscopy (from biopsy). - Rx: Prostatectomy OR radiotherapy Stage 2: Confined but deforming gland - Rx: Prostatectomy OR radiotherapy Stage 3: ca extends beyond the capsule and seminal vesicle. - Rx: Radiotherapy +/- Hormonal or both Stage 4: metastasis (LNG, Bone, Liver, Lung) - Rx: mets without bone = hormonal (e.g. Goserelin) - Rx: mets with bone = Radiotherapy
29
What is a DTPA scan?
Used to assess glomerular filtration rate and renal function. NOT TO BE USED IN RENAL IMPAIRMENT
30
What condition is a renogram MAG3 scan indicated in?
PUJ obstruction (once dx on CT or DMSA scan)
31
What is the gold standard imaging for haematuria?
CT followed by cystoscopy (if needed)
32
How is vesicle-ureteric reflux investigated?
Micturating cysto-uretoscopy
33
What is the most common type of renal stone and what is its opacity?
Calcium oxalate It is radio-opaque
34
What is the most radio-opaque type of kidney stone?
Calcium phosphate RTA Types 1 and 3 increase risk of this stone formation
35
Which type of kidney stone is radiolucent and what is it associated with?
Uric acid Associated with stag horn calculi and malignancy
36
What type of kidney stone does an infection with Proteus mirabilis (UTI) precipitate?
Struvite stones
37
How would you manage a stone measuring 0.5cm without signs of obstruction?
Conservative Mx
38
When is ESWL indicated and when is it contraindicated?
Stones measuring 0.5cm - 2cm in kidney or ureter CONTRAINDICATED IN PREGNANCY + AAA
39
How are kidney stones >2cm managed?
PCNL
40
How does management differ for renal stones located at the lower pole of the kidney?
>1cm = PCNL <1cm = ureteroscopy
41
What is the most cause of bladder injury and how does it present?
Pelvic fracture displaced anteriorly PC: suprapubic pain followed by anuria
42
What are the 2 types of urethral injury?
Bulbar rupture (most common): occurs in saddle type injuries (bikes) Membranous injury: prostate will be displaced upwards by DRE
43
What is the most common type of urethral injury?
Bulbar rupture
44
What are the indications of renal replacement therapy (dialysis)?
- Persistent hyperkalaemia - Metabolic acidosis (pH <7.2) - Fluid overload - Urea >30
45
What is an allograft?
from a donor of same species but different genetics
46
What is the most common type of bladder cancer in western people and what are its risk factors?
TCC RF: Smokers, dye, rubber and leather factory work
47
What is the most common type of bladder cancer in Africa and what are its risk factors?
SCC RF: Schistosomaisis, LTC, Bladder stones
48
How is a T1 Renal cell carcinoma managed?
Partial nephrectomy
49
How is a T2 or above renal cell carcinoma managed?
Radical nephrectomy with venous control
50
What is the common triad of symptoms in pts with RCC?
Mass, pain and haematuria Associated symptoms may include left sided varicocele, high Hb
51
What is the most common genitourinary malignancy in under 15 year olds and how is it managed?
Nephroblastoma Rx: surgical resection + chemo
52
What is PCKD associated with?
Liver cysts (70%), Berry aneurysms (25%), Pancreatic cysts (10%) They present with malignant hypertension
53
What colour does a TCC appear on dissection?
Pink Most renal cancers appear yellow or brown except TCC
54
What causes varicoceles in absence of malignancy?
Incompetent/absent internal spermatic vein valves
55
How does prostate ca spread to the spine?
Haematogenous spread Rich prostatic venous plexus drains into iliac vein with Batson's plexus (spinal plexus)
56
What is paraphimosis?
Urology emergency where the foreskin, once retracted, cannot be returned to its normal position