Revise Radiology Genitourinary Flashcards
Wedge shaped hypodensities in kidneys on cortical phase
Renal infarct
Cortical rim sign
Renal infarct
Thickened endometrium on breast cancer treatment
Tamoxifen induced changes
Small painless bumps on face and neck, spontaneous pneumothorax, renal tumours
Birt-Hogg-Dube
Nephrogenic systemic fibrosis
Thickening and hardening of skin and subcutaneous tissues
Joint stiffness and pain
Associated with chronic renal failure and exposure to gadolinium
Testis MRI appearance
Intermediate on T1, high on T2, avid diffusion restriction
Urethral injury classification
Goldman:
Type 1: Stretching of the posterior urethra
Type 2: Posterior urethral injury ABOVE urogenital diaphragm
Type 3: Injury to membranous urethra, extending into proximal bulbous (laceration of urogenital diaphragm)
Type 4: Bladder base injury involving neck, extending into proximal urethra
Type 4a: Bladder base not involving bladder neck (identical to type 4 on imaging)
Type 5: Anterior urethral injury (isolated)
Round hyperintense T2 lesion lateral to external urethral meatus
Skene duct cyst
MEN features
1: PPP (Primary = 1)
Pituitary
Parathyroid
Pancreatic islet cell
2A: PPM
Phaeo
Parathyroid
Medullary thyroid
2B: PMM
Phaeochromocytoma
Medullary Thyroid Cancer
Mucosal Neuromas/Marfanoid
Phaeochromocytoma MRI
High T2, avid enhancement, rarely calcify
Node involvement in bladder cancer
Obturator, presacral, internal and external iliac are regional.
Common iliac are distant mets
Lobar parenchymal calcifications, thick calcified ureter with structure
Genitourinary TB
Most common association with horseshoe kidney
Turner syndrome
Cervical cancer MRI
Cancer is T2 intense, which differentiates it from hypointense stroma
Commonest vaginal tumour in children
Vaginal rhabdomyosarcoma
Adrenal washout
Absolute:
(PV-Delayed)/(PV-Unenhanced)
>60% suggests adenoma
Relative:
(PV-Delayed)/PV
>40% suggests adenoma
Commonest genital outflow abnormality
Imperforate hymen
Homogenous hypoechoic round mass replacing entire testicle
Seminoma
Normal prostate MRI
Peripheral zone enhances more than central zone
Testicular rupture vs fracture
Rupture:
Disrupted tubica albuginea.
Heterogenous testicle.
Poorly defined testicular outline
Fracture
Intact tunica albuginea.
Linear hypoechoic band across testicle
Well defined testicular outline
Pelvic fractures typically cause (bladder)
Extraperitoneal rupture
Syndrome associated AML vs sporadic
Syndromic (TS) tend to be multiple/bilateral
Testicular neoplasm doppler
Usually shows normal or increased vascularity
Hairy kidney and coated aorta sign
Erdheim Chester disease
Ix for post traumatic assessment of bladder injury
CT cystography
Pelvic fractures and urethral injries
Posterior is more common, seen in up to 20% of pelvic fractures in males.
Males > Females
Smooth, oblong mobile filling defect in the renal pelvis
Fibroepithelial polyp
Poorly defined hypoechoic or hyperechoic areas in renal parenchyma.
Low density on CT, extending from medulla to cortex
Lobar nephronia