Primary renal neuroendocrine tumor in a 33-year-old female.
ABSTRACT Primary neuroendocrine tumors (NETs) of the kidney are exceedingly rare, with an estimated incidence of only 0.13 per 1 million individuals. Their rarity is attributed to the absence of native neuroendocrine cells within the renal parenchyma. These tumors span the WHO grading spectrum, with well-differentiated...