Small bodies containing chromaffin cells occurring outside of the adrenal medulla, most commonly near the sympathetic ganglia and in organs such as the kidney, liver, heart and gonads.
collection of chromaffin cells derived from the migration of sympathetic ganglion cells; the cells are arranged in clumps and cords in various sites of peritoneum and can secrete epinephrine.
A cluster of chromaffin cells derived from the neuroectoderm and located adjacent to the adrenal gland, nerves, and blood vessels.
A collection of cells that came from embryonic nervous tissue, and are found near the adrenal glands and some blood vessels and nerves. Most paraganglia secrete epinephrine and norepinephrine.