Urology(88) (NEW 2024) Flashcards
ANSWER C) undescended testes
EXPLANATION
In the aetiology of testicular tumors the only evidence-based risk factor is an undescended testis (in this case testicular tumors are 10-20 times more likely to occur). Trauma, torsion, genetic factors are not evidence-based predisposing factors.
ANSWER B) epididymitis
EXPLANATION
In case of epididymitis, the epididymis and the testicle are enlarged, and are painful to touch. In case of a testicular tumor, a non-tender nodule can be palpated, or the entire testicle could be non-tender, but enlarged. Varicocele causes a pulling-like pain, the distended veins can be palpated as a „bag of worms”, the testicles themselves are not painful to touch. A hydrocele can be transilluminated, it is not painful, a fluctuating fluid can be palpated within the scrotum.
ANSWER B) hard
EXPLANATION
Prostate cancer: hard, non-tender nodule in the prostate, or firm, irregular surface, of a non-tender prostate. Acute prostatitis presents with fever, extremely tender and enlarged prostate. BPH presents as nodular, glandular or muscle-like alteration of the enlarged prostate.
ANSWER B) contains many epithelial cells
EXPLANATION
In the female urine epithelial cells are often present, originating from the vagina
B) presents with sudden pain, which usually wakes the patient from his sleep
EXPLANATION
Usually, young men are predisposed to testicular torsion, which presents at night and the patient is awoken by a sudden, very intense scrotal pain radiating inguinally. It causes high fever only if it begins necrotizing. It presents equally commonly on either side.
D) tenderness on palpation of McBurney’s point
EXPLANATION
Typical signs of renal colic include intense flank pain, which radiates to the labia or scrotum of the same side and is often accompanied by nausea or vomiting. Tenderness of the McBurney’s point is characteristic in appendicitis.
ANSWER A) 5-α-reductase
EXPLANATIONIn the aetiology of BPH 5-α-reductase plays crucial role in converting testosterone to dihydrotestosterone within the prostate.
D) all of the above
EXPLANATION
Although in the aetiology of prostate cancer causal factors have not been determined, but older age, genetic- (positive family history) and hormonal factors (androgen-dependency) all contribute to the development of prostate cancer.
A) smoking
EXPLANATION
Smoking certainly plays a role as a risk factor for urothelial carcinoma. Other factors e.g. certain polycyclic chemicals also increase the risk of bladder tumors, but the connection is not as obvious as with smoking.
D) urinary dribbling following an increase in abdominal pressure (e.g. during exercise, coughing, sneezing etc.)EXPLANATIONIn case of stress urinary incontinence, the increased abdominal pressure leads to increased intravesical pressure without the contraction of the detrusor muscle, which exceeds the urinary tract’s pressure
B) send the patient to a urologist
EXPLANATION
The palpation of a nodule within a testicle is suspicious of a testicular tumor, which requires further examination by a urologist.
E) All of the answers are correct
EXPLANATION
Dysuria can be caused by BPH compressing the posterior wall of the urethra, prostate cancer, causing obstruction of the prostatic urethra, inflamed, enlarged prostate and extreme narrowing of the foreskin. In the latter case the patient first voids under the foreskin surrounding the glans.
E) All of the answers are correct
EXPLANATION
Bladder tumors near the internal urethral orifice can obstruct outflow as valves or can infiltrate the posterior urethra. Urethral narrowing can also compromise flow and can lead to complete obstruction. In case of acute prostatitis, the inflamed, enlarged prostate can completely compress the prostatic urethra. In case of hypo- or acontractile detrusor function, the contractile function of the detrusor decreases, or is insufficient, thus the urine cannot be emptied. The underlying cause can be myogenic or neurogenic.
ANSWERA) Answers 1, 2 and 3 are correct
EXPLANATION
Only parenchymal organs’ inflammations are accompanied by fever, thus NOT cystitis.
ANSWERA) Answers 1, 2 and 3 are correct
EXPLANATION
PSA (prostate-specific antigen) is prostate-specific, but not prostate cancer. Its normal range is 0-4 ng/ml, a grey zone is between 4-10 ng/ml, above 10 ng/ml a tumor is likely. Digital rectal examination (DRE) raises the suspicion of prostate cancer if an uneven surface or firm nodules are palpated, but only histology can confirm it. Therefore, for screening PSA and DRE are mandatory. (If DRE is performed first, at least 2 days should pass to have PSA tested as even palpation can increase PSA.) If prostate cancer is suspected based on either PSA or DRE, prostate biopsy is mandatory. The abdominal ultrasound has no use in the diagnosis of prostate cancer.
A) Answers 1, 2 and 3 are correct
EXPLANATION
Testosterone is the male sex hormone; LH is its trophic hormone and FSH enhances spermatogenesis (their levels are measured if hypogonadism is suspected). Parathyroid hormone is measured if hyperthyroidism is suspected.
ANSWERC) Answers 2 and 4 are correct
EXPLANATION
Infertility and azoospermia are complex andrological diagnoses, ultrasonography is insufficient on its own for the diagnoses. Semen analysis and the exploration of the underlying cause (via microbiological, diagnostic, surgical, radiological, biochemical genetic and endocrine tests) are inevitable. In case of orchidoepididymitis, the testicle is non-homogeneous, and in case a testicular tumor non-homogeneous region(s) or an entire non-homogeneous testicle can be observed.
ANSWERB) Answers 1 and 3 are correct
EXPLANATION
Bleomycin and Vincristin are used as systemic chemotherapeutic agents. Mitomycin C and BCG are used as intravesical agents in case of non-muscle invasive bladder tumors.
D) Only answer 4 is correct
EXPLANATION
Ureterocutaneostomy involves the anastomosis of ureters to the abdominal skin. Bilateral percutaneous nephrostomy involves urine diversion from both kidneys via puncturing the kidneys under ultrasound imaging and inserting percutaneous drains (catheters). The creation of a Bricker ileal conduit involves the anastomosis of the ureters into a short segment of the ileum, and the other end of the gut is anastomosed to the abdominal wall. The above three are non-continent diversions, thus urine outflow is continuous, patients wear stoma bags or urine collection bags. Creation of an orthotopic bladder involves the isolation of a section of a small intestine, which is connected to the original urethral stump, and both of the ureters are connected to the neobladder. Therefore, the route of the urine is as follows: upper urinary tract-orthotopic bladder-urethra. Emptying of the bladder can be voluntarily controlled via the outer sphincter of the urethra.
ANSWERC) Answers 2 and 4 are correct
EXPLANATION
Local chemotherapy can only be used in the treatment of non-muscle invasive bladder tumors to prevent recurrence. Patients with muscle-invasive bladder tumors can be cured via radical cystectomy, bladder wall resection (baldder dome) and TUR, on their own, or combined with radio- or chemotherapy (adjuvant, neoadjuvant therapy). For palliation, TUR can be performed, or chemo-, or radiation therapy can be administered, though in certain cases cystectomy may also be performed
D) Only answer 4 is correct
EXPLANATION
Pyelonephritis in pregnancy usually occurs during the second half of the pregnancy, affects the right side more frequently and if despite antibiotics and anti-inflammatory medications the fever or the pain don’t subside, a double J stent or nephrostomy should resolve the dilation and alleviate the symptoms.
ANSWERC) Answers 2 and 4 are correct
EXPLANATION
Internal urethrotomy is an endoscopic (transurethral) incision of the urethral stenoses with optic control. A ureteral catheter inserted using a special ureterocystoscope, also through the urethra. ESWL: Extracorporal shock wave lithotripsy does not need an endoscopic intervention. Epicystostomy is defined as percutaneous bladder punction.
ANSWERB) Answers 1 and 3 are correct
EXPLANATION
Diabetes mellitus causes impotency via vascular and neurogenic mechanisms. Beta-blockers may lead to erectile dysfunction due to reduced arterial inflow.
E) All of the answers are correct
EXPLANATION
the characteristic of labor changes of acute kidney failure: increased serum creatinine, potassium and carbamide levels, decreased GFR and acidosis.
C) Answers 2 and 4 are correct
EXPLANATION
The serum levels of β-hCG increase mainly in choriocarcinoma and AFP is higher in nonseminoma type testicular tumors. PSA is a tumor marker used in prostate cancer. Testosterone levels are utilized for the differential diagnosis of the subtypes of hypogonadism.
C) Answers 2 and 4 are correct
EXPLANATION
Anticholinergics block the effect of acetylcholine on the presynaptic nerve terminals, thus the whole nerve transmission is inhibited. This decreases the tone of the detrusor muscle and involuntary contractions. Therefore, it increases bladder capacity and decreases its excitability. They are recommended for the treatment of urge incontinence. Doxycycline is an antibiotic, hence it has no effect on urinary incontinence. The alpha-adrenoreceptor blockers relax the smooth elements of bladder neck to increase the urine outflow, hence they worsen urinary incontinence. Beta-3-adrenoreceptor agonists relax detrusor muscle to improve bladder continence issues, thus we utilize them in the treatment of urge incontinence.
E) All of the answers are correct
EXPLANATION
Antihypertensive drugs can cause erectile dysfunction through reduced arterial inflow. In plastic penile induration, the penile curvature may reach such a high level, that it leads to erectile dysfunction. The smoking doubles the risk of ED. Chronic alcoholism can also lead to erectile dysfunction.
A) 1st, 3rd and 5th answers are correct
EXPLANATION
US and CT can differentiate the solid surface from the fluid-containing cystic mass based on their echogenicity and density. Furthermore, CT and MR can differentiate based on morphological characteristics and contrast enhancement patterns. Retrograde pyelography and excretory urography only display the volume, and differential diagnosis is not feasible.
C) 2nd, 3rd and 4th answers are correct
EXPLANATION
Acute pyelonephritis usually develops due to the infection of the lower urinary tract. Characteristic symptoms are high fever with chills, pain due to the enlarged kidneys stretching the kidney capsules and pyuria (except the blocked kidney) refers to urinary infection. Macroscopic hematuria is not characteristic. Kidney pain related to movement refers to orthopedic conditions.
B) 1st, 4th and 5th answers are correct
EXPLANATION
Body movement related pain is mainly caused by conditions affecting the musculoskeletal system, e.g. rheumatoid arthritis or disc herniation. Renal ptosis can cause pain observed during standing (due to renal occlusion) and laying down relieves the pain. Kidney stones stucked in the urinary tract can cause continuous colic pain. Vesicoureteral reflux causes renal pain during urination.
B) 1st, 4th and 5th answers are correct
EXPLANATION
The most common symptom of bladder tumor is macroscopic, painless, so-called “silent” hematuria, often with clots. Renal tumors may also cause macroscopic bleeding when they break into the lumen of the urinary tract. In one type of acute cystitis, namely in hemorrhagic cystitis, macroscopic hematuria can be observed in addition to pyuria. Glomerulonephritis cause microhematuria. VUR does not lead to haematuria.
URO - 32 - It can be caused by varicocele - B)
The extended venous plexus increases the temperature of the testis impairing spermatogenesis (normally requires temperature below the body temperature. Following TURP the bladder neck is opened up. During ejaculation, the sperm launched towards the bladder (it travels towards lower resistance into the posterior urethra that is a shorter distance than towards the normal ejaculation route). These patients do not detect any ejaculation through their urethra during orgasm. Beta-blockers decreases arterial inflow resulting in erectile dysfunction. Drug treatment resistant erectile dysfunction can be further approached with vacuum therapy.
URO - 33 - It appears as a frequent complication after TUR (transurethral resection) surgery. - D)
The extended venous plexus increases the temperature of the testis impairing spermatogenesis (normally requires temperature below the body temperature. Following TURP the bladder neck is opened up. During ejaculation, the sperm launched towards the bladder (it travels towards lower resistance into the posterior urethra that is a shorter distance than towards the normal ejaculation route). These patients do not detect any ejaculation through their urethra during orgasm. Beta-blockers decreases arterial inflow resulting in erectile dysfunction. Drug treatment resistant erectile dysfunction can be further approached with vacuum therapy.
URO - 34 - It can be caused by beta-blockers. - A)
The extended venous plexus increases the temperature of the testis impairing spermatogenesis (normally requires temperature below the body temperature. Following TURP the bladder neck is opened up. During ejaculation, the sperm launched towards the bladder (it travels towards lower resistance into the posterior urethra that is a shorter distance than towards the normal ejaculation route). These patients do not detect any ejaculation through their urethra during orgasm. Beta-blockers decreases arterial inflow resulting in erectile dysfunction. Drug treatment resistant erectile dysfunction can be further approached with vacuum therapy.
URO - 35 - One way of the treatment can be a vacuum constriction device - A)
The extended venous plexus increases the temperature of the testis impairing spermatogenesis (normally requires temperature below the body temperature. Following TURP the bladder neck is opened up. During ejaculation, the sperm launched towards the bladder (it travels towards lower resistance into the posterior urethra that is a shorter distance than towards the normal ejaculation route). These patients do not detect any ejaculation through their urethra during orgasm. Beta-blockers decreases arterial inflow resulting in erectile dysfunction. Drug treatment resistant erectile dysfunction can be further approached with vacuum therapy.
E) both the statement and the explanation are false
EXPLANATIONRenal colic without fever, vomiting or unbearable pain can be treated at home with NSAID, tamsulosin and antispasmodics (eg No-Spa). If any of the three factors are present the patient should be hospitalised. In the hospital urinary diversion is present and stronger painkillers are available. However, in order to avoid masking the symptoms of any other acute abdominal complaints on the spot, narcotic analgesics are prohibited.