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kidney

This tag is associated with 11 posts

Xanthogranulomatous Pyelonephritis

History: 20 year old female with back pain and urinary tract infection.  This is a case of xanthogranulomatous pyelonephritis, which is defined as a chronic infection of the kidney and surrounding structures, destruction of renal parenchyma, and infiltration with lipid-laden macrophages. It is the lipid-laden macrophages which characteristically give this entity its name “xanthogranulomatous.” Xanthos … Continue reading

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Solution to Unknown Case #24 – Multilocular Cystic Nephroma on Ultrasound

History: 60 year old male with flank pain.  This is a multilocular cystic nephroma, which is a benign cystic neoplasm of the kidney classically seen in young males and middle aged females. Multilocular cystic nephomas commonly herniate into the renal hilum. It is impossible to distinguish multilocular cystic nephromas from malignant cystic tumors on imaging … Continue reading

Unknown Case #24 – Right Kidney Ultrasound

History: 60 year old male with flank pain.  What is your diagnosis for this 60 year old male with flank pain? Comment and share below!

Unknown Case #22 – Retrograde Voiding Cystourethrogram

History: child with history of urinary tract infections.  What is your diagnosis for this child with a history of multiple urinary tract infections? Comment and share below!

Solution to Unknown Case #5 – Calyceal Diverticulum

History: 16 year old female with recurrent flank pain.  This is the appearance of a calyceal diverticulum, which is a small outpouching or eventration of a calyx into the renal parenchyma. They are usually connected by a narrow channel to the renal pelvis, as seen in the IVP image above. A calyceal diverticulum can be … Continue reading

Unknown Case # 5 – Intravenous Pyelogram and Abdominal CT

History: 16 year old female with recurrent flank pain. What is your diagnosis for this pediatric patient with recurrent flank pain? Comment below. Share and pin this case by clicking on the icons below!

Pulmonary Metastatic Disease

History: 65 year old male with a history of “abdominal” malignancy presents with chest pain and shortness of breath. This is a case of metastatic disease to the lungs (pulmonary metastatic disease). Can you determine the likely primary cancer? Take a look at the film again. See the surgical clips in the abdomen. The patient … Continue reading

Vicarious Contrast Material Excretion

History: 50 year old male with severe chest pain has incidental finding on a CT of the thorax ordered for thoracic aortic dissection.  Contrast material excretion by the gallbladder is called vicarious contrast material excretion (VCME). Vicarous contrast material excretion is technically defined as any excretion of contrast material in a way other than the normal … Continue reading

Hydronephrosis

History: 48 year old female with chronic pelvic and flank pain and vaginal bleeding.  This patient was found to have a large cervical mass (squamous cell carcinoma of the cervix) that was obstructing both kidneys. This is the appearance of chronic hydronephrosis, with cortical thinning.

Multilocular Cystic Nephroma

History: 60 year old male lost to follow up now returns five years later for reevaluation of a known right renal mass. This mass is classified as a Bosniak 3 lesion given the enhancing internal septations and enhancing capsule; therefore, it is required to be surgically removed for definitive differentiation between malignancy and multilocular cystic … Continue reading

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