RESUMEN
Retrospectively from February, 2006 to June, 2009 the clinical characteristics of 14 misdiagnosed cases of insulinoma in the First Affiliated Hospital of Zhengzhou University were analysed. The rate of misdiagnosis was 38% ( 14/37). The rate of IRI/G≤0. 3 was 33%. Insulinoma has often been misdiagnosised when IRI/G≤0. 3. Hence a diagnosis of insulinoma can not be excluded with this IRI/G rate.
RESUMEN
Objective To investigate the clinical efficacy of pedicled adrenal transposition for the treatment of adrenocortical and medullary hyperplasia, Methods Twenty cases of adrenal hyperpla-sia (6 men and 14 women; mean age,36 years ) had history of hypertension from 0.5 to 5 years. Of all cases, 15 had centripetal obesity and purple striae, 2 had weakness and polyuria, 3 had durative hypertension. Serum potassium and aldosterone were increased in 4 and 3 cases, respectively. Urinary 17-OH and 17-KS were increased in 15 cases. Epinepgrine, norepinephrine and dopamine increased in 3 cases, VMA increased in 4 cases. CT scan and MRI revealed adrenal diffuse enlargement with in-creased thickness or nodules in 18 and 3 cases, respectively, 131I-MIBG scan showed positive in 3 ca-ses. Preoperative diagnoses were Cushing's syndrome in 11 cases, hyperaldosteronism in 2 cases, pheochromocytoma in 1 case, adrenomedullary hyperplasia in 2 cases, Cushing's syndrome-cate-cholamine syndrome in 4 cases. All cases were treated with transposition of pedicled adrenal gland into the subcutaneous tissues. Results All operations were successful. The average operation time was 120 min, the average blood loss was 40 ml and the average hospital stay was 10 d. No obvious surgical complications occurred. Pathological studies of all the cases revealed the coexistence of adrenocortical and medullary hyperplasia. Seventeen cases were followed up for 0.5-8 years. Thirteen cases had no symptom and normal biochemical results. Four cases still had hypertension and abnormal biochemical results. They were recovered after adrenal operation of the ther side. Conclusion Transposition of pedicled adrenal gland could be an available option to treat patients with adrenocortical and medullary hyperplasia.