Abstract
Background:
A 59-year-old man presented for a follow-up, 6 years after surgery for a large pheochromocytoma. He had suffered from diabetes mellitus, hypertension and abdominal pain in the right flank region. Previous postoperative follow-up did not reveal tumor recurrence.
Investigation:
Measurement of plasma free metanephrine and normetanephrine by high-performance liquid chromatography and radioimmunoassay; 123I-metaiodobenzylguanidine (MIBG) scintigraphy; hybrid 123I-MIBG single-photon emission CT (SPECT)-CT; MRI; testing for plasma norepinephrine and epinephrine; intraoperative ultrasonography; histological staining for chromogranin A and synaptophysin; and postoperative 18F-dihydroxyphenylalanine (DOPA) PET scan.
Diagnosis:
Recurrent pheochromocytoma.
Management:
Laparotomy with tumor resection. Reduction of antihypertensive medications. Further follow-up by MRI, hybrid 123I-MIBG SPECT-CT and testing for plasma catecholamines and free metanephrines.
MeSH terms
-
Abdominal Pain
-
Adrenal Gland Neoplasms / diagnosis*
-
Adrenal Gland Neoplasms / drug therapy
-
Adrenal Gland Neoplasms / surgery
-
Antihypertensive Agents / administration & dosage
-
Chromogranin A / analysis
-
Diabetes Mellitus, Type 2 / complications
-
Epinephrine / blood
-
Epinephrine / urine
-
Humans
-
Hypertension / complications
-
Iodine Radioisotopes
-
Magnetic Resonance Imaging
-
Male
-
Metanephrine / blood
-
Metanephrine / urine
-
Middle Aged
-
Neoplasm Invasiveness / pathology
-
Neoplasm Recurrence, Local / diagnosis*
-
Neoplasm Recurrence, Local / drug therapy
-
Neoplasm Recurrence, Local / surgery
-
Norepinephrine / blood
-
Norepinephrine / urine
-
Normetanephrine / blood
-
Normetanephrine / urine
-
Pheochromocytoma / diagnosis*
-
Pheochromocytoma / drug therapy
-
Pheochromocytoma / surgery
-
Synaptophysin / analysis
-
Tomography, Emission-Computed, Single-Photon
-
Vena Cava, Inferior / pathology
Substances
-
Antihypertensive Agents
-
Chromogranin A
-
Iodine Radioisotopes
-
Synaptophysin
-
Normetanephrine
-
Metanephrine
-
Norepinephrine
-
Epinephrine