Sandbox: DDx Kidney mass: Difference between revisions

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* Middle aged patients
* Majority are asymptomatic
* May have hematuria , recurrent renal calculi, and recurrent UTI 


* Often unremarkable
* Fever, chills, night sweats, and abdominal pain
* Hematuria, pallor, and weight loss


* RTA type 1
* Hypercalciuria


* Bilateral cystic dilatation of the collecting tubules on CT
* Costovertebral tenderness
* Hyperdense papillae with clusters of medullary calcifications 
* "Paintbrush-like" appearance




* Elevated WBC count
* Elevated ESR and CRP


* Medullary cysts lined by cuboidal epithelium
* Well defined hypoechoic area within the corticomedullary parenchyma on U/S
* Severe scarring and inflammation of the interstitium,
* Well defined mass of low attenuation with a thick, irregular wall or pseudocapsule on CT


* Not applicable
* Not applicable


 
Angiosarcoma
 
 
 
 
 
 
 
 
 






==Nonmalignant causes==
==Nonmalignant causes==
acquired cystic kidney disease  cystic renal dysplasia glomerulocystic kidney medullary sponge kidney mesothelial cysts nephronophthisis simple cysts
anaplastic sarcoma clear cell sarcoma mesoblastic nephroma metanephric stromal tumor nephroblastomatosis / nephrogenic rests neuroblastoma oncocytoid carcinoma after neuroblastoma ossifying

Latest revision as of 20:52, 9 November 2015

  • Fever, chills, night sweats, and abdominal pain
  • Hematuria, pallor, and weight loss


  • Costovertebral tenderness


  • Elevated WBC count
  • Elevated ESR and CRP
  • Well defined hypoechoic area within the corticomedullary parenchyma on U/S
  • Well defined mass of low attenuation with a thick, irregular wall or pseudocapsule on CT
  • Not applicable

Angiosarcoma


Nonmalignant causes

anaplastic sarcoma clear cell sarcoma mesoblastic nephroma metanephric stromal tumor nephroblastomatosis / nephrogenic rests neuroblastoma oncocytoid carcinoma after neuroblastoma ossifying