Volume 23, Issue 10 , Pages 526-530, October 2007
Insulinoma-associated Transient Hypothalamus—Pituitary—Adrenal Axis Impairment and Amelioration by Steroid Therapy and Surgical Intervention: A Case Report
Article Outline
Insulinoma is the most common functional tumor among pancreatic islet cell tumors. This type of tumor is difficult to localize prior to surgery and can lead to serious hypoglycemia. This paper presents the case of a young female who suffered from insulinoma associated with transient hypothalamus—pituitary—adrenal axis impairment. To localize her insulinoma, we used two alternative testing methods, somatostatin receptor scintigraphy and selective arterial calcium stimulation with venous sampling, after a failure of conventional imaging methods. We treated her adrenal insufficiency and prevented serious hypoglycemia by giving her prednisolone. The impairment in her hypothalamus—pituitary—adrenal axis and her serious hypoglycemia recovered after excision of the tumor.
Key Words: hypothalamus—pituitary—adrenal axis impairment , insulinoma
No full text is available. To read the body of this article, please view the PDF online.
References
- Functioning insulinoma—incidence, recurrence, and long-term survival of patients: a 60-year study . Mayo Clin Proc . 1991;66:711–719
- Results of a prospective strategy to diagnose, localize, and resect insulinomas . Surgery . 1991;110:989–997
- Surgical approach to insulinomas. Assessing the need for preoperative localization . Arch Surg . 1992;127:442–447
- Clinical characteristics, treatment and survival in patients with pancreatic tumors causing hormonal syndromes . World J Surg . 1992;16:632–639
- Pancreatic insulinomas . Am J Surg . 1993;165:243–248
- . Malignant islet-cell tumors of the pancreas . World J Surg . 1984;8:940–951
- Islet cell tumors of the pancreas: pathologic-imaging correlation among size, necrosis and cysts, calcification, malignant behavior, and functional status . AJR Am J Roentgenol . 1995;165:1175–1179
- . Insulinoma . Best Pract Res Clin Gastroenterol . 2005;19:783–798
- Detection of small, functional islet cell tumors in the pancreas: selection of MR imaging sequences for optimal sensitivity . Radiology . 2000;214:483–490
- Blind distal pancreatectomy for occult insulinoma, an inadvisable procedure . J Am Coll Surg . 2002;194:761–764
- Calcium infusion: a new provocative test for insulinomas . Ann Surg . 1979;190:501–507
- Localization of insulinomas to regions of the pancreas by intraarterial stimulation with calcium . Ann Intern Med . 1995;123:269–273
- Multimodality preoperative imaging of pancreatic insulinomas . Clin Radiol . 2005;60:1039–1050
- . Morphological and functional investigations of neuroendocrine tumors of the pancreas . Eur Radiol . 2003;13:2133–2146
- Comparison of somatostatin receptor imaging, computed tomography and ultrasound in the clinical management of neuroendocrine gastro-entero-pancreatic tumours . Eur J Nucl Med . 1998;25:1396–1403
- . Mechanisms of hypoglycemia-associated autonomic failure and its component syndromes in diabetes . Diabetes . 2005;54:3592–3601
- Role of cortisol in the pathogenesis of deficient counterregulation after antecedent hypoglycemia in normal humans . J Clin Invest . 1996;98:680–691
- Prevention of an increase in plasma cortisol during hypoglycemia preserves subsequent counterregulatory responses . J Clin Invest . 1997;100:429–438
- . Elevated endogenous cortisol reduces autonomic neuroendocrine and symptom responses to subsequent hypoglycemia . Am J Physiol Endocrinol Metab . 2002;282:770–777
- . Cortisol elevations comparable to those that occur during hypoglycemia do not cause hypoglycemia-associated autonomic failure . Diabetes . 2003;52:2083–2089
- Hypo-glycaemic counter-regulation at normal blood glucose concentrations in patients with well controlled type 2 diabetes . Lancet . 2000;356:1970–1974
- . ACTH and cortisol release following intravenous desmopressin: a dose-response study . Clin Endocrinol (Oxf) . 1999;51:653–658
- Reversibility of unawareness of hypoglycemia in patients with insulinomas . N Engl J Med . 1993;329:834–839
PII: S1607-551X(08)70011-1
doi:10.1016/S1607-551X(08)70011-1
© 2007 Elsevier. Published by Elsevier Inc. All rights reserved.
Volume 23, Issue 10 , Pages 526-530, October 2007
