What is the commonest type of tumors occurring in the penile urethra?
adenocarcinoma
transitional cell carcinoma
squamous cell carcinoma
basal cell carcinoma
Correct Answer :
C. squamous cell carcinoma
in the penile part 90% are squamous cell cancers and 10% are transitional cell tumors.
Related Questions
What is the commonest type of tumor occurring in urethral diverticuli?
adenocarcinoma
transitional cell carcinoma
squamous cell carcinoma
basal cell carcinoma
During women`s life span, what percentage of women will develop keratinizing squamous metaplasia of the bladder?
10%
20%
30%
40%
Immediately following transurethral resection of bladder tumors, intravesical installation of which material(s) is(are) contraindicated?
epirubicin
mitomycin c
BCG
none of the above
In women, what is the commonest type of cancers occurring in the proximal urethra?
adenocarcinoma
transitional cell carcinoma
squamous cell carcinoma
basal cell carcinoma
While resecting a large bladder tumor located at the right lateral wall, the surgeon observes a bladder perforation, what should next step be?
continue the procedure as perforations at this site do no harm
abort the procedure and leave a urethral catheter
convert tumor removal to open method and repair the defect
perform abdominal exploration and manage accordingly
While deeply resecting a large bladder tumor, the surgeon noted loss of bladder distension, what should next step be?
increase the irrigation fluid and pursue the procedure
abort the procedure and leave a urethral catheter
perform cystogram and manage accordingly
perform abdominal exploration and manage accordingly
Evaluation of painless hematuria includes all of the following,
EXCEPT:
urine cytology
CT urography
cystoscopy
renal function tests
What is false concerning upper tract urothelial tumors?
rarely diagnosed at autopsy
the peak incidence occurs between ages 70 and 80
they occur twice as frequently in men as in women
none of the above
What is true regarding inverted papilloma of the bladder?
the standard treatment is transurethral resection
the prognosis for inverted papilloma is pathetic, with a recurrence rate of approximately 65%
the likelihood of synchronous urothelial carcinoma is 26%
has been shown to harbor p53 gene mutations
Which of the following statements concerning lymphatic drainage of the male urethra is true?
the anterior urethra drains into the inguinal and pelvic nodes
the posterior urethra drains into the pelvic nodes
the proximal two-thirds drain into the external and internal iliac nodes
the distal one-third drains into the obturator nodes
For radical cystectomy, thromboembolism prophylaxis is required:
immediately before operation
immediately before incision and post-operative for 1 day
immediately before incision and post-operative for 15 days
immediately before incision and post-operative for 30 days
On diagnosing bladder cancers, what advantage does urine cytology has over tumor markers?
high specificity
high sensitivity
high reliability
strong validity
Partial cystectomy for bladder tumors can be performed when the following criterion(a) is(are) met:
the lesion is solitary and no associated CIS
physically, a surgical margin of 2-cm can be obtained
the resected area should be far enough from ureteral orifices and the bladder neck
all of the following
Carcinoma-in-situ of the prostatic urethra mostly occurs at the:
mid prostate to the verumontanum at the 5 and 7 oclock positions
lateral margins of the prostate at the 10 and 2 oclock positions
entire area distal to the urethral crest
area between ejaculatory duct openings and prostatic utricle
What is the likelihood that inverted papillomas of the upper urinary tract accompany tumors?
never
unlikely
likely
always
What is the imaging modality of choice in the evaluation of a suspected urethral cancer?
ascending urethrography
voiding cystourethrography
MRI
IVU
The most significant prognostic factors for survival in female urethral cancers are:
sensitivity to chemotherapy and age at presentation
anatomic location and extent of the tumor
histologic type of the tumor and sensitivity to radiotherapy
tumors stage and grade
What is the commonest type of tumors occurring in the female urethra?
adenocarcinoma
transitional cell carcinoma
squamous cell carcinoma
comparable
Common benign urethral tumors include all of the following,
EXCEPT:
leiomyoma
hemangioma
fibroepithelial polyp
lymphangioma
What is NOT a contraindication to BCG treatment?
history of pulmonary TB
total incontinence
immunosuppression
impaired renal function
What type of bladder cancers might be caused by Schistosoma haematobium infection?
transitional cell carcinoma
squamous cell carcinoma
adenocarcinoma
small cell carcinoma
Regarding bladder neoplasia, squamous metaplasia differs from squamous dysplasia as the latter is/has:
well-differentiated tumor with broad-based invasive font
marked atypia distributed on wide areas of superficial urothelium
atypia is present
no atypia but marked degenerative epithelial changes
Bladder cancer patients who once failed BCG vaccine, should:
undergo cystectomy
try mitomycin c
take a second course of BCG
take a second course of BCG + quinolones
Which of the following is a risk factor for developing upper urinary tract tumors?
obesity
consuming artificial sweeteners
asbestosis
analgesic abuse
Partial penectomy for urethral cancer is indicated in:
infiltrative proximal penile urethral carcinomas
infiltrative distal penile urethral carcinomas
recurrent proximal penile urethral carcinoma after laser resection
T3/N2/M0 at bulbar urethra
The treatment of T2/Nx/M0 prostatic urethral cancer is:
en bloc resection involving total penectomy, cystoprostatectomy, resection of the pubic rami and urogenital diaphragm, with pelvic lymphadenectomy. In addition, creating a urinary diversion.
total penectomy involving removal of the penis, urethra, and penile root
partial penectomy involving excision of the malignant lesion with 2-cm margins
transurethral resection or fulguration
Which of the following cystoscopic descriptions of bladder tumors is false?
nodular or sessile lesions usually invade muscle
papillary bladder tumors are typical of low stage and grade
carcinoma in situ appears as a flat, velvety patch
sarcomas commonly invade bladder base and ureteral orifices causing obstructions
What is false regarding squamous metaplasia of the urinary bladder (non-keratinized) subtype?
only in females
associated with chronic irritation, polypoid cystitis, and cystitis glandularis
no risk for squamous cell carcinoma
treated with estrogen, if symptomatic
Bladder tumors with hydronephrosis are:
often of high-grade sarcomas
often associated with muscularis propria invasion
due to vesical polyps occluding ureteric orifices
should be resected but not diathermized
What is the most effective adjuvant intravesical therapy for bladder tumors?
cisplatin
BCG
mitomycin C
5-fluorouracil