IvanovaBibi (asker) Aug 23, 2021:

striated? Could it be the normal state of the pyramids? Everything else looks normal with the kidney. striated pyramids are just striped pyramids - somehow transformed into кантирани

liz askew Aug 23, 2021:

Renal medulla - Wikipediahttps://en.wikipedia.org › wiki › Renal_medulla
The renal medulla is the innermost part of the kidney. The renal medulla is split up into a ... The base of each pyramid originates at the corticomedullary border and ...

liz askew Aug 23, 2021:

I can only find "edging/border" for your word.

liz askew Aug 23, 2021:

Renal pyramids (or malpighian pyramids or Malpighi's pyramids named after Marcello Malpighi, a seventeenth-century anatomist) are cone-shaped tissues of the kidney. In humans, the renal medulla is made up of 10 to 18 of these conical subdivisions.[4][5] The broad base of each pyramid faces the renal cortex, and its apex, or papilla, points internally towards the pelvis. The pyramids appear striped because they are formed by straight parallel segments of nephrons' Loops of Henle and collecting ducts. The base of each pyramid originates at the corticomedullary border and the apex terminates in a papilla, which lies within a minor calyx, made of parallel bundles of urine collecting tubules.