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Radiology of urinary system Dr. Sameer Abdul Lateef
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* Infestation by Schist. Haematobium. *The ova deposited into sub-mucosa of urinary bladder and to less extent at the wall of ureters. *The ova calcify and excrete toxin producing necrosis of tissue lead to granulomatous tubercles and extensive fibrosis. *Calcification is very common and important diagnostic findings. Very common in bladder,less frequent in lower ureters,but in advanced case involve the whole length of ureter. *The appearance depends on degree of fullness of bladder ; thin linear opacity outlining bladder wall. Empty bladder shows crowded linear opacities with calcified plaques. Empty bladder shows crowded linear opacities with calcified plaques.
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IVU: Early stage – cobble stone Later filling defects due to graneulomatos papilloma Carcinoma is important complication Ureters : dilated and tortuous In early stage hydroureter and hydronephrosis + reflux IVU: Early stage – cobble stone Later filling defects due to graneulomatos papilloma Carcinoma is important complication Ureters : dilated and tortuous In early stage hydroureter and hydronephrosis + reflux
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SPACE OCCUPING LESION SIMPLE RENAL CYST * Common cause of renal mass. * Uncommon under age of 30 years, most common over 50 years. * Single or multiple. * Usually cortical in origin. * Varies in size ; few mm to 25 cm. * Contains straw color fluid, with thin fibrous wall lines by flat epithelium. * Clinically silent, large cyst can shows palpable mass. * Calcification is rare, normal renal function.
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Renal cyst cont. KUB : 1- Cyst in upper pole displace kidney downward. Cyst at medial surface displace the kidney laterally.with enlarged kidney 2- Smooth local bulge of renal out-line. 3- Calcifications rare 3% usually in hemorrhagic cyst.
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Renal S.O.L (cyst)
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RENAL CYST IVU :- * Nephrogram shows filling defect. *Displacement, elongation & stretching of PCS which depend on size and site of the cyst. US :- US :- shows echo-free cystic lesion with posterior enhancement. shows echo-free cystic lesion with posterior enhancement.
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RENAL TUMOR Adenocarcinoma ( Hyper nephroma) * Comprise 80% of renal malignant tumor. next epithelial T. of renal pelvis (transitional cell Ca.) ; Nephroblastoma ( Wilm ’ s Tumor ). * Clinically may be silent or presented with loin pain, heamaturia and loin mass. * Usually unilateral, rare bilateral. KUB :- * Soft tissue mass. * Bulging in renal out-line. * Diffuse renal enlargement. * Calcification occur in 6 % of cases.
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IVU :- IVU :- * Nephrogram shows filling defect which is irregular. * Distracted PCS. * Hydronephrosis. * Amputation & missing calyces. * Large non-functioning kidney. AngiogramUSCTMRI
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WILM’S Tumor Most common abdominal malignancy in childhood Most common abdominal malignancy in childhood ( 1 – 5 years ), 3% bilateral ( 1 – 5 years ), 3% bilateral KUB & IVU:- Large soft tissue mass displacing bowel loops, distracted calyces,Non functioning kidney Large soft tissue mass displacing bowel loops, distracted calyces,Non functioning kidney
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Epithelial tumor of renal pelvis
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BLADDER Tumor * Common tumor of urinary tract. * The are of epithelial origin and all are malignant. Radiological appearance :- Filling defect in cystogram stage, well defined or lobulated, plaque like and irregular in non- papillary type. Filling defect in cystogram stage, well defined or lobulated, plaque like and irregular in non- papillary type. Calcification in plain film due to encrusting of urinary salts. Ureteric obstruction
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PROSTATIC Enlargement Common cause of lower urinary obstruction. Either Benign prostatic hyperplasia or Carcinoma. Common cause of lower urinary obstruction. Either Benign prostatic hyperplasia or Carcinoma. Benign Hyperplasia :- Plain film:- * Enlargement of bladder shadow due to residual urine. *Prostatic calculi or calcification.
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IVU ( cystogram stage ) * Elevated bladder base. *Lower ureter elevated and curved (fish hook ). * Back pressure to both kidney & ureters. * Thick trabeculated bladder wall and diverticula formation. * Large size prostate produce filling defect like appearance. * Post-voiding residual volume.
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Produce similar changes except: Produce similar changes except: * Plain film shows evidence of metastasis to the bone especially in the pelvis. * The prostatic urethra shows irregular narrowing and stretching. * US can distinguish between BPH & Ca.
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Bony metastasis
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