MEDICAL
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Tubular casts in the lumen of renal tubules
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Presence of colloid of thyroid follicles in the lumen of renal tubules
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Either A or B
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None of the above
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Detailed explanation-1: -Renal tubular epithelial cell casts reflect damage to tubule cells in the kidney. These casts are seen in conditions such as renal tubular necrosis, viral disease (such as cytomegalovirus [CMV] nephritis ), and kidney transplant rejection .
Detailed explanation-2: -One of the many patterns of tubular atrophy in the kidney is the aptly named “thyroidization” pattern because of its resemblance to normal thyroid gland follicles. The dilated tubules contain abundant protein, resembling thyroid colloid, which is surrounded by flattened epithelial cells.
Detailed explanation-3: -Casts: Urinary casts are cylindrical structures that are formed from coagulated protein (Tamm-Horsfall protein) secreted by tubular cells. As their name implies, they are usually formed in the long, thin, hollow renal tubules and take their shape. They develop in the distal convoluted tubule or the collecting duct.