Chapter 14 Renal Pathology/Anomalies Power Point Flashcards
Diverticula
Cystitis
Bladder calculi
Blood clots
Bladder pathology
congenital or acquired. External protrusion of the mucosa through the musularis. Appears as a pouch-like herniation of the bladder wall
Diverticula
thickening of the bladder wall usually from an infection. More common in females. Predisposing factors include catherization, urethral obstruction,tumor or pregnancy
Cystitis
may occur from stasis or be passed down from the kidneys. Echogenic and posterior acoustic shadowing
Bladder calculi
usually adherent to the bladder wall. Echogenic and no posterior acoustic shadowing
Blood clots
most common primary bladder neoplasm
Can be seen by US as single or multiple masses. Benign papillomas have the same appearance. Cystoscopy and biopsy are required for accurate diagnosis
Transitional cell carcinoma
an aggressive and invasive tumor associated with stones, strictures and chronic infection.
Cannot be distinguished by US from transitional cell carcinoma
Can have extrinsic forces to the bladder due to colon or pelvic masses
Squamous cell carcinoma
Gross hematuria
May urinate blood clots
Color/power doppler
Vary patients position ? Adherent to wall
Clinical findings of Bladder Cancer
Horseshoe kidney Dromedary hump Fetal lobulation Junctional parenchymal defect Column of Bertin
Normal renal variants
Prominent invaginations of the cortex at varying depths within the medullary substance of the kidneys.
Hypertrophied columns of Bertin contain renal pyramids; they may be difficult to differentiate from an avascular renal neoplasm.
Columns are more exaggerated in patients with complete or partial duplication.
Columns of Bertin
Shape of left kidney is affected by the spleen.
A bulge of cortical tissue can occur on the lateral border of the kidney; may resemble a renal neoplasm.
On sonography, the echogenicity is identical to the rest of the renal cortex, and a renal pseudotumor needs to be considered
Dromedary Hump
Triangular, echogenic area typically located anteriorly and superiorly
Result of partial fusion of two embryonic parenchymal masses called renunculi during normal development
Junctional Parenchymal Defect
Usually present in children up to 5 years of age
May persist in up to 51% of adults
Surfaces of the kidneys are generally indented in between the calyces, giving the kidneys a slightly lobulated appearance
Fetal Lobulation
Characterized by the deposition of a moderate amount of fat in the renal sinus, with parenchymal atrophy
Sinus Lipomatosis
Normal renal pelvis is triangular structure.
Axis points inferiorly and medially.
Extrarenal pelvis tends to be larger, with long major calyces.
Pelvis appears as a central cystic area that is either partially or entirely beyond the confines of the bulk of the renal substance
Extrarenal Pelvis