Lecture 16: Pediatric Urology Flashcards
A neonate should expect to have their entire glans covered by their foreskin by around weeks ()-()
18-20 weeks
A Fully developed scrotum should have (shallow/deep) rugae and testes bilaterally
Deep
Shallow = preemie, empty scrotum = cryptorchidism
The average age range of normal penile development is…
9-14 years
11.5 average
A parent wants to know what the first sign that shows their boy is hitting puberty. You tell them to look for…
Increased testicular size and volume.
Male menarche is characterized by having () in urine and () dreams
- Sperm in urine
- Wet dreams (nocturnal emissions)
The first tanner stage that corresponds to penile enlargement is…
Stage 2
By late puberty, you would expect a normal penis to be around () cm in length
9.5 cm
+/- 1.12 cm
T/F: Circumcision in the US is primarily a religious affair and not common.
False. Circumcision in the US is actually very common and its for non-religious reasons.
The general age a circumcision is performed is around days () to ()
1-10 days
Its an elective procedure, so making sure infant is healthy first.
Hypospadias with foreskin abnormalities, chordee/curvature of the penis, a concealed penis, or a large suprapubic fat pad contraindicate what procedure?
Circumcision
- Easier genital hygiene
- Lower UTI rates
- Lower viral STD rates
- Lower penile cancer rates
- Lower cervical cancer rates in female partners
All describe the benefits of what?
Circumcision
The STDs that are NOT reduced in incidence by circumcision are () and ()
- Gonorrhea
- Chlamydia
The blind technique for circumcision uses the () clamp
mogen
You cut MOre in MOgen because you’re blind
T/F: You can retract the foreskin forcibly post-circumcision
False, only do it gently!
When is retractibility of foreskin 99%
Adolescent
T/F: Most phimosis is physiological
True!
T/F: Smegma under the foreskin forming pearls requires intervention
False.
Phimosis in general is caused by ….
Constant irritation
Prob gunna need surgery
First-line pharm tx for phimosis is
6 weeks of topical betamethasone + stretching
Why might we use creams for phimosis tx?
- Less invasive
- Avoid risks of surgery
The surgeries done to correct phimosis are either () or ()
Dorsal slit surgery or circumcision
T/F: Paraphimosis is an emergency
True!!!!!
What is paraphimosis?
Swelling of glans with a collar of swollen foreskin at coronal sulcus
Early on, paraphimosis can be treated with….
Manual compression
Otherwise, dorsal slit and/or punctures
Balanoposthitis is specifically inflammation of…
Glans penis AND foreskin
Balanitis is penis only
Generally, older adolescents with balanoposthitis got it due to….
STDs
Your 18yo patient presents with a complaint of penile swelling. He states he is circumcised, but it has been swelling recently and smells bad. He is sexually active. Upon examination, you notice some scarring between the glans and prepuce. You suspect he has….
Balanoposthitis
Your patient with balanoposthitis does not want to use any medications. You advise him that he can use….
Sitz baths
The MC penile abnormality is…
Hypospadias
Hypospadias is generally characterized by the opening of the urethral meatus on the (ventral/dorsal) surface of the penis.
Ventral
Dorsal = epispadias
Generally, hypospadias is located most commonly on the (proximal/distal) shaft of the penis.
Distal
60%
T/F: You can perform a circumcision on someone with hypospadias
False.
Send to urology to surgical repair!
Hypospadias should be corrected when a boy is () months to () months old.
6-12 months old
Epispadias is characterized by the urethral meatus opening on the (ventral/dorsal) side of the penis
Dorsal side
Like a dolphin’s dorsal fin
A more proximal epispadias is associated with urinary ()
incontinence
The MC congenital abnormality of the GU tract is…
in boys
Cryptorchidism
T/F: Your 2 month old boy currently has cryptorchidism still. You should refer him to urology ASAP.
False, you would expect it to spontaneously descend by 4-6 months.
The MC side to experience cryptorchidism is…
Left testicle
3 locations describe abnormal descent of the testicles and 3 describe ectopic.
- Abdominal
- Inguinal
- Suprascrotal
- Suprapubic
- Femoral
- Perineal
Abnormal: abd, inguinal, suprascrotal.
Ectopic: Suprapubic, femoral, perineal
You should start considering referral for cryptorchidism for bilateral nonpalpable testes, unilateral non-palpable tests with hypospadias, sex development disorder, ascending testes, or lack of descent of testes by the months of ()
4
A patient presents with suspected cryptorchidism. You first order (imaging), along with (genetic test), (hormones), and (gonadotropins)
- Pelvic US
- Karyotyping of sex
- Adrenal hormones and metabolites to check for CAH
- LH, FSH, Mullerian inhibiting substance
CAH = congenital adrenal hyperplasia
Orchiopexy should be done in a boy by ()
1 year of age
hCG is best with helping to descend testes that are (higher/lower) positioned
Lower positioned
The biggest risk we are concerned about with untreated cryptorchidism is…
Testicular cancer
5-10x increased risk
The MCC of DSD (disorder of sex development) is ….
Congenital adrenal hyperplasia
Resulting in ambiguous genitalia
At around week () of gestation, external genitalia become sexually differentiated
Week 9