Posts tagged with "Nephrology"
Hydronephrosis in Ultrasound
November 28th, 20140153 This is an ultrasound image of the kidney with hydronephrosis and a grossly dilated pelvi-calyceal system. The normal hyperechoic area in the center is replaced by ballooning of the renal pelvis and widened calyces . The cortex is still preserved here.
Hydronephrosis in CT
November 28th, 20140446 This is a plain CT abdomen of the same patient. This series of images shows bilateral hydronephrosis and hydroureter (arrow). Further caudal images revealed extension of the obstruction down to the vesico-ureteric junction. There were no radio-opaque stones identified. This patient had carcinoma of the prostate leading to obstruction of...
Staghorn Stone in CT
November 28th, 20140175 The CT image on the left shows a staghorn stone in the left kidney. Staghorn stones are large calculus found in the calyceal system extending into the calyces, which gives them an appearance similar to that of the horns of a stag (deer). There is associated hydronephrosis and hydroureter. On the right side, the hydroureter is caused by...
Polycystic Kidney Disease
November 28th, 20140143 This is a plain CT abdomen of a patient who has polycystic kidney disease. Her kidneys are enlarged with innumerable cysts. Her abdomen is too distended rendering her unsuitable for peritoneal dialysis. She is therefore receiving haemodialysis. Occasionally, these patients require nephrectomy for symptomatic relief, infection or bleeding...
Complicated Renal Cyst
November 28th, 20140154 This is a contrast CT scan of the abdomen. There is a complicated cyst measuring 2.0x2.4 cm with mixed cystic and solid components in the anterior aspect of the mid pole of the right kidney. Nephrectomy was performed. The lesion was confirmed to be a renal cell carcinoma. The other cystic lesion in the posterior right kidney is a benign...
Renal Osteodystrophy of the Spine
November 28th, 20140181 This is a "Rugger-jersey spine", present in patients with severe secondary hyperparathyroidism. The alternating sclerotic vertebral end-plates and the radiolucent centers of the vertebral body produce an appearance similar to an English rugby sweater. This radiograph also shows dense calcifications along the aorta. Extra-skeletal...
Renal Osteodystrophy of the Hands
November 28th, 20140219 This is an X-ray of the hands from a patient with severe hyperparathyroidism. There is sub-periosteal resorption (white arrow) of the phalanx and severe tuft resorption.
Calciphylaxis
November 28th, 20140242 This is a form of ischemic vasculopathy confined to patients with renal failure. It is caused by abnormal deposition of calcium in blood vessels and soft tissue, subsequently leading to ischemic necrosis of the dermis and subcutaneous fat. Clinically, they present with purpuric plaques and nodules which progress to necrotic ulcers....
Arteriovenous Fistula
November 28th, 20140287 A radiocephalic arteriovenous fistula in the forearm for haemodialysis.