Renal papilla

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Renal papilla
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Kidney, with renal papilla labeled at upper right.
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Latin Papilla Renalis
Anatomical terminology

The renal papilla is the location where the medullary pyramids empty urine into the minor calyx in the kidney. Histologically it is marked by medullary collecting ducts converging to form a duct of Bellini to channel the fluid. Transitional epithelium begins to be seen.

Role in disease[edit]

Some chemicals toxic to the kidney, called nephrotoxins, exert their damage at the renal papillae. Damage to the renal papillae may result in death to cells in this region of the kidney, called renal papillary necrosis. The most common toxic causes of renal papillary necrosis are NSAIDs, such as ibuprofen, acetylsalicylic acid, and phenylbutazone, in combination with dehydration.

Additional Images[edit]

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References[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.

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