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Perirenal fat (also "perirenal fat capsule", "perinephric fat, [5] or "adipose capsule of the kidney" [6]) is external to the fibrous capsule of the kidney, and internal to the renal fascia (which separates it from the pararenal fat); connective tissue trabeculae extend through it to unite the fibrous capsule of the kidney, and the renal fascia ...
The renal fascia separates the adipose capsule of kidney from the overlying pararenal fat. The deeper layers deep to the renal fascia are, in order, the adipose capsule (or perirenal fat), the renal capsule and finally the parenchyma of the renal cortex. [2] At the renal hilum, the renal capsule extends into the renal sinus. [1]
The renal capsule surrounds the functional tissue of the kidney, and is itself surrounded by a fatty adipose capsule, fascia, and fat. From the inner part of the kidney to outside the kidney, the positioning of the capsule is: renal medulla; renal cortex; renal capsule; adipose capsule of kidney (or perirenal fat, or perinephric fat) renal fascia
Radiology [ edit ] A magnetic resonance imaging (MRI) scan may be used to identify the collection of blood, although this is often not performed if bleeding is a medical emergency .
Gross examination of a kidney (right of image) with a renal oncocytoma (left of image).. Gross processing, "grossing" or "gross pathology" is the process by which pathology specimens undergo examination with the bare eye to obtain diagnostic information, as well as cutting and tissue sampling in order to prepare material for subsequent microscopic examination.
Ten percent of RCC will contain calcifications, and some contain macroscopic fat (likely due to invasion and encasement of the perirenal fat). [ 46 ] Deciding on the benign or malignant nature of the renal mass on the basis of its localized size is an issue as renal cell carcinoma may also be cystic.
Fat in tumors such as in adrenocortical adenomas; Fat-stranding as seen in inflammation such as appendicitis, diverticulitis and omental infarction; Pulmonary arterial phase 6-13 sec [6] - Pulmonary embolism (can use bolus tracking in pulmonary trunk + 6 seconds) [7] Pulmonary venous phase 17-24 sec [6]-Early systemic arterial phase 15-20 sec ...
Perinephritis is an infection of the surroundings of the kidney either right or left. It can be the result of extravasated infiltration of the bacteria out of the renal pelvis (pyelonephritis) or a result of another kidney infection.