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Angiomyolipoma seen as a hyperechoic mass in the upper pole of an adult kidney on renal ultrasonography. Renal ultrasonography of a person with tuberous sclerosis and multiple angiomyolipomas in the kidney: Measurement of kidney length on the US image is illustrated by '+' and a dashed line. CT scan of a renal angiomyolipoma.
This is an accepted version of this page This is the latest accepted revision, reviewed on 18 January 2025. Medical condition Kidney cancer Other names Renal cancer Micrograph showing the most common type of kidney cancer (clear cell renal cell carcinoma). H&E stain. Specialty Oncology nephrology Urology Symptoms Blood in the urine, lump in the abdomen, back pain Usual onset After the age of ...
Gross appearance of a renal oncocytoma (left of image) and a slice of a normal kidney (right of image). Note the rounded contour, the mahogany colour and the central scar. In gross appearance, the tumors are tan or mahogany brown, well circumscribed and contain a central scar. They may achieve a large size (up to 12 cm in diameter).
Segmental hypoplasia or Ask-Upmark kidney is a rare renal disease where a part of the kidney has undergone hypoplasia. The number of renal lobes is reduced, and the kidney size is less than two standard deviations from the average, with the weight often being over 50g in adults and 12–25g in children.
Taken as a whole, if the disease is limited to the kidney, only 20–30% develop metastatic disease after nephrectomy. [110] More specific subsets show a five-year survival rate of around 90–95% for tumors less than 4 cm. For larger tumors confined to the kidney without venous invasion, survival is still relatively good at 80–85%.
The symptoms may be similar to those classically associated with renal cell carcinoma, and may include polycythemia, abdominal pain, hematuria and a palpable mass. Mean age at onset is around 40 years with a range of 5 to 83 years and the mean size of the tumour is 5.5 cm with a range 0.3 to 15 cm (1).
Papillary renal cell carcinoma (PRCC) is a malignant, heterogeneous tumor originating from renal tubular epithelial cells of the kidney, which comprises approximately 10-15% of all kidney neoplasms. [1] Based on its morphological features, PRCC can be classified into two main subtypes, which are type 1 and type 2 (eosinophilic). [2]
The most frequent, malignant, primary kidney cancer is renal cell carcinoma (RCC) - which has several subtypes: Clear cell RCC, an epithelial cell tumour of the kidney that accounts for 65-70% of all RCCs. [5] Papillary RCC, a renal tumour that accounts for 10-15% of all RCCs. Males are 1.5 times as likely to develop this type of tumour than ...