Investigation of choice in case of a pt. with episodic hypertension, headache and thyroid nodule -
This pt is having MEN type II syndrome which is characterized by
Pheochromocytoma and
Medullary carcinoma of thyroid (MCT)
Urinary catecholamines are increased in pheochromocytoma
Aspiration of nodule will show amyloid material (seen in MCT)
Urinary HIAA
Urinary catecholomine and aspiration of nodule
Thyroid function test only
Urinary basic amino acid metabolite