Genital Tract - CT, MRI Flashcards
Performed by cannulating the cervix and injecting a contrast agent into the cavity of the uterus and follopian tubes
HSG
Extraperitoneal space between the lower uterus and bladder
Bare area
Derived from mullerian ducts
Uterus, cervix and upper third of the vagina
Arise from the urogenital sinus
Lower 2/3 of the vagina
Connective tissue adjacent to the uterus between the folds of the broad ligament and adjacent to the vagina
Parametrium
Covers the fallopian tubes hanging over them like a sheet folded on a clothesline enveloping the vessels of the parametrium
Broad ligament
Portion that extends cephalad from the origin of the fallopian tubes
Fundus of the uterus
Cervix is cylindrical in shape and ___ in length
3-4cm
Muscular tube that is a flattened oval shape on cross sectional images
Vagina
Maximal adult ovaries
5 x 3 x 2 cm
Maximum ovarian volume
1. Infancy
2. Before menarche
3. Postpubertal
4. 40-44 y.o
5. Postmenopausal
- 1-3 cc
- 9 cc
- 22 cc
- 8 cc
- 6 cc
Internal anatomy of the uterus and vagina is best depicted on what sequence
T2WI
Signal intensity of the inner junctional zone of the myometrium on T2WI
Low signal intensity (due to lower water content)
Signal intensity of cervix on both T2 and T1
Low signal
Signal intensity of myometrium
Highest
Lowest
Late proliferative and early secretory
Menstruation and early proliferative
Primarily used for the evaluation of infertility to demonstrate the morphology and patency of the uterine canal and fallopian tubes
Hysterosalpingography
Endocervical canal
Length
Width
3-4 cm
1-3 cm
Fallopian tubes
10-12 cm in length
Imaging method of choice for the staging of testicular neoplasms and in locating undescendes testis
CT scan
Signal intensity of tunica albuginea on MR
Low signal
Provides highly sensitive cancer detection
Dynamic contrast enhanced MRI
Glandular zones of prostate
Peripheral 70%
Transitional 5%
Central 25%
Most prostate cancers arise from what prostatic zone
Peripheral
Site of benign prostatic hypertrophy
Transitional zone
Signal intensity of
Peripheral zone
Central zone
High signal
Low
Paired elongated sac like glands located in the posterior groove between the bladder base and the prostate
Seminal vesicle
Vas deferens + seminal vesicles
Ejaculatory duct
Seminal vesicle
L
W
3 cm
8 mm
Vas deferens diameter
3-5 mm
Landmark for lowest extent of the peritoneal cavity
Seminal vesicle
Separates the prostateband seminal vesicles from rectum
Denonvilliers fascia
Runs from the anterior inferior part of the gland to the pubic bone and provides support
Puboprostatic ligament
HU
Central zone
Peripheral zone
40-60
10-25
