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Surgery MCQ 130

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Pheochromocytomas are most commonly:

A. Benign tumors

B. Malignant tumors

C. Found in both adrenal glands (bilateral) D. Located outside the adrenal glands (extra-adrenal)



The answer is A. Benign tumors.


While Pheochromocytomas can be malignant, around 10-15% of the cases, the majority, approximately 85%, are benign. This means they are not cancerous and are less likely to spread to other parts of the body.


Here's a breakdown of the other options:


  • B. Malignant tumors: As mentioned earlier, while some Pheochromocytomas are malignant, it's not the most common occurrence.

  • C. Found in both adrenal glands (bilateral): While it's possible to have Pheochromocytoma in both adrenal glands (around 10%), it's not the most common location.

  • D. Located outside the adrenal glands (extra-adrenal): While Pheochromocytomas can develop outside the adrenal glands, those occurring within the adrenal glands are more prevalent (around 85%).

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