In dogs, what is the primary tumor site for certain endocrine tumors such as pheochromocytoma?

Study for the Program for the Assessment of Veterinary Education (PAVE) Exam. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

In dogs, what is the primary tumor site for certain endocrine tumors such as pheochromocytoma?

Explanation:
Pheochromocytomas come from chromaffin cells located in the adrenal medulla, inside the adrenal glands. These cells produce catecholamines, and when a tumor arises from them the primary site is the adrenal gland itself. So the adrenal glands are the correct site because that’s where the chromaffin cells live and where this endocrine tumor originates. The other organs listed are not the usual primary sites for pheochromocytoma.

Pheochromocytomas come from chromaffin cells located in the adrenal medulla, inside the adrenal glands. These cells produce catecholamines, and when a tumor arises from them the primary site is the adrenal gland itself. So the adrenal glands are the correct site because that’s where the chromaffin cells live and where this endocrine tumor originates. The other organs listed are not the usual primary sites for pheochromocytoma.

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