Male Genital Tract Flashcards
clinical significance of penile congenital anomalies
ascending UT
sterility
most important pathology of male gential tract
inflammation
tumors
more common congenital anomaly
hypospadias
malformation of urethral groove and urethral canal on the dorsal surface
epispadias
abnormal small opening which prevents normal retraction of the prepuce
phimosis
phimosis is prone tto
repeated infection
carcinoma
when phismotic prepuce is foribly retracted over glans penis
paraphimosis
infections of the glans and prepuce caused by a wide variety of organisms
balanoposthisis
common agents of balanoposthisis
candida albicans
anaerobe
gardenerella
pyogenic bacteria
accumulation of desquamated epithelial cells, sweat, debris
smegma
common cause of phimosis
inflammation
most frequent penile neoplasms are
condyloma acuminata
SCC
cause of condyloma acuminata
HPV
agents of condyloma acuminata
HPV 6,11
transmission of HPV 6,11
skin contact
gross feature of condyloma acuminatum
single or multiple sessile or pedunculated, red papillary excrescences
coronal sulcus, prepuce
histo condylomata acuminatum
papillary ct stroma like proliferation koilocytosis (perinuclear vacuolization) acanthosis degenerative atypia basement membrane intact
in situ malignant penile tumor
Bowen’s disease, bowenoid papulosis
invasive malignant penile tumor
SCC
Bowen’s dse occurs in
35
male, female
gross Bowen’s disease
solitary thickened gray white opaque plaque with shallow ulcerations and crustin
histo Bowen’s disease
mitoses in epidermis
dysplastic, hyperchromatic nuclei
lack of orderly maturation
sharply demarcated bm
occurs in sexually active adult
multiple reddish brown lesions
Bowenoid papulosis
Bowenoid papulosis agent
HPV 16
prognosis of Bowenoid papulosis
good
spontaneously regress
culprit of invasive carcinoma
HPV 16, 18
invasive papilloma begins on the
glans
inner surface of the prepuce near the coronal sulcus
gross invasive CA of penis
papillary
flat
graying fissuring of mucosal surface
ulcerated papule
histo invasive penile ca
similar with SCC with varying differentiation
most common form of cryptorchidism
unilateral
cryptorchidism may be accompanied by
with GUT abnormalities like hypospadias
histo of cryptorchidism
hyalinization and thicken of BM of spermatic tubules
prominent leydig cells
causes of testicular atrophy
atherosclerosis orchitis cryptorchidism hypopituitarism cachexia irradiation antiandrogen chronic use exhaustion atrophy
histo of testicular atrophy
fibrosis or ghosting of spermatic tubules
atrophy as a primary genetic failure
Klinefelter syndrome
other patterns associated with decreased fertility
hyposprematogenesis
maturation arrest
vas deferens obstruction
syphilis first affects the
testis
<35 year old nonspecific epididymitis and orchitis
chlamydia
neisseria
> 35 y/o nonspecific epididymitis and orchitis
E coli
Pseudomonas
testicular mumps
edema
congestion
chronic inflammatory infiltrate
cause atrophy and sterility
TB testicular inflammation
granulomatous inflammation
caseous necrosis
begins in the epididymis to testis
painful testicular mass mimicking testicular tumor
autoimmune granulomatous orchitis
histology of autoimmune granulomatous orchitis
plasma cells
granuloma at spermatic tubules
twisting of spermaticord
testicular torsion
twisted testis is viable within
6 hours
neonatal torsion occrs
in utero
shortly after birth
no anatomic defect
adult torsion
adolescents presenting as sudden onset
adult torsion results from bilateral anatomic defect where the testis has increased mobility
bell-clamper abnormality
most common cause of painless enlargement of testis
testicular neoplasm
peak incidence of testicular neoplasms
15-34
testicular neoplasms are associated with
germ cell maldevelopment
suspect neoplasm in patients with
cryptorchidism testicular dysgenesis (xxy)
genetic common finding of testicular neoplasms
isochromosome 12, i(2p)
testicular Neoplasms are offen
benign
5% o pf testicular neoplasms are secondary to
non Hodgkin’s lymphoma
most common testicular neoplasm in men regardless of age
diffuse large B cell lymphoma
testicular tumor with best prognosis because it is radiosensitive
seminomas
nonseminomas undergo
totipotential differentiation
germ cell precursor undergo gonadal differentiation
seminoma
embryonal neoplasm undergo trophoblastic differentiation
choriocarcinoma
emryonal CA undergoes yolk sac differentiation
yolk sac tumor
in choriocarcinoma, there is an increase in
beta-hCG
yolk sac tumor is common in
infancts and children less than 3 years old
yolk sac tumor is positive in
alpha feto protein
seminomas in females are called
dysgerminoma
gross seminoma
bulky mass pale homogenous surface gray white lobulated no hemorrhage or necrosis
micro seminoma
clear seminoma cells or germ cells
delicate septa
lymphocytic infiltrates
prognosis of seminoma
good
most common in all testicular neoplasms
seminoma