Investigation of choice in case of a pt. with episodic hypeension, headache and thyroid nodule ?
Ans is B ie Urinary catecholamines and aspiration of 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