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  • Title: Multiple venous sampling for catecholamine assay in the diagnosis of malignant pheochromocytoma.
    Author: Pontremoli R, Borgonovo G, Ranise A, Garibotto G.
    Journal: J Endocrinol Invest; 1989 Oct; 12(9):647-9. PubMed ID: 2685095.
    Abstract:
    Malignant pheochromocytoma is a rare cause of hypertension and still has a high mortality rate. The most accurate way to localize a malignant pheochromocytoma is by a combination of scans, both CT and scintigraphy. Selective sampling of venous blood from multiple sites for plasma catecholamine levels is a safe and reliable technique and may be used successfully in some patients. A case is presented where venous sampling proved to be useful in preoperatively localizing a malignant pheochromocytoma and its metastatic lesions which both CT and ultrasound had failed to demonstrate.
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