Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Archive for the ‘GU’ Category

Wilm’s Tumor

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  • Age: 80% <6yo; most common abdominal neoplasm 1-8 yo.
  • Appearance: solid mass in kidney (claw sign), pushing away vessels, not crossing mid-line
  • IVC and renal vein thrombosis
  • Mets to lung, liver, brain, bone
  • Staging
    • I = confined to kidney
    • II = local extension to perinephric space
    • III = lymph nodes
    • IV = distant mets
    • V = bilateral renal
  • DDx: neuroblastoma (crosses mid-line, encases vessels, calcify), multilocular cystic nephroma, sarcoma, RCC, nephroblastomatosis, mesoblastic nephroma, AML, renal medullary carcinoma

 

Written by lmwong

October 28, 2011 at 1:17 pm

Posted in abdomen, GU, pediatrics, renal

Urethral Injury Types

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urethral injury typesPosterior urethra: from bladder neck, through prostate, to membranous urethra

Anterior urethra: bulbar and penile urethra

  • type 1: stretched, periurethral hematoma
  • type 2: rupture above urogenital diaphragm, extraperitoneal contrast
  • type 3: rupture below urogenital diaphragm, extraperitoneal and perinium contrast
  • type 4: bladder extending to urethra
  • Type 5: anterior urethral injury

Written by lmwong

March 31, 2010 at 2:53 pm

Posted in classification, GU, trauma

Bladder Rupture Classification

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  • Type 1: contusion
  • Type 2: intraperitoneal rupture
  • Type 3: interstitial bladder injury
  • Type 4: Extraperitoneal rupture; a = simple; b = complex
  • Type 5: Combined bladder injury

Written by lmwong

March 31, 2010 at 2:48 pm

Pediatric Renal Tumors

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  • Wilm’s tumor
  • nephroblastomatosis
  • Clear cell sarcoma
  • Rhabdoid tumor
  • Hamartoma
  • Angiomyolipoma
  • Ossifying Renal Tumor of Infancy
  • Metanrphric Adenoma
  • Adjacent Neuroblastoma from adrenal gland

Written by lmwong

March 20, 2010 at 10:57 am

Pediatric Cystic Renal Lesions

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Written by lmwong

March 19, 2010 at 2:26 pm

Uterine Shapes

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Written by lmwong

February 2, 2010 at 5:57 pm

Posted in differential, GU, OB, uterus

Increased renal echogenicity

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Cortical only:

  • Acute/Chronic Glomerulonephritis
  • Nephrosclerosis
  • Acute tubular necrosis

Medullary only:

  • Medullary nephrocalcinosis
  • Renal pyramidal fibrosis

Cortical and Medullary:

  • Chronic Plyeonephritis
  • Chronic Glomerulonephritis

Patchy:

  • Infection
  • Scarring
  • Renal Vein thrombosis

Written by lmwong

January 22, 2010 at 1:44 am