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An oncocytoma is a tumor made up of oncocytes, epithelial cells characterized by an excessive amount of mitochondria, resulting in an abundant acidophilic, granular cytoplasm. [ 1 ] [ 2 ] The cells and the tumor that they compose are often benign but sometimes may be premalignant or malignant .
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).
Oncocytes (left of image), as seen in a renal oncocytoma. H&E stain. An oncocyte is an epithelial cell characterized by an excessive number of mitochondria, resulting in an abundant acidophilic, granular cytoplasm. Oncocytes can be benign or malignant.
There are a few minimally uncomfortable ways to safely remove a skin tag. Shaving : “Shaving a skin tag involves using a blade or a scalpel,” says Dr. Penzi. First the skin is numbed and then ...
For one, "that skin tag has a blood vessel within it, so if you remove it, it can bleed," Davis says. And the bigger or wider the stalk of the skin tag, the more likely it is to bleed a lot.
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Skin biopsy is a biopsy technique in which a skin lesion is removed to be sent to a pathologist to render a microscopic diagnosis. It is usually done under local anesthetic in a physician's office, and results are often available in 4 to 10 days.
Kevin Jonas is revealing he recently underwent a procedure to remove a cancerous spot on his face. In an Instagram post on Tuesday, the 36-year-old Jonas Brothers band member shared that after a ...