Diagnosis and Treatment > Medication > Cortisone acetate
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Department of Medicine, Haukeland University Hospital, Bergen, Norway
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Department of Medicine, Haukeland University Hospital, Bergen, Norway
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Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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Summary
Primary adrenal lymphoma (PAL) is a rare cause of adrenal insufficiency. More than 90% is of B-cell origin. The condition is bilateral in up to 75% of cases, with adrenal insufficiency in two of three patients. We report two cases of adrenal insufficiency presenting at the age of 70 and 79 years, respectively. Both patients had negative 21-hydroxylase antibodies with bilateral adrenal lesions on CT. Biopsy showed B-cell lymphoma. One of the patients experienced intermittent disease regression on replacement dosage of glucocorticoids.
Learning points:
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Primary adrenal lymphoma (PAL) is a rare cause of adrenal insufficiency.
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Bilateral adrenal masses of unknown origin or in individuals with suspected extra-adrenal malignancy should be biopsied quickly when pheochromocytoma is excluded biochemically.
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Steroid treatment before biopsy may affect diagnosis.
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Adrenal insufficiency with negative 21-hydroxylase antibodies should be evaluated radiologically.
Search for other papers by Benedetta Zampetti in
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Search for other papers by Roberto Attanasio in
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Search for other papers by Renato Cozzi in
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Summary
A 69-year-old male was admitted for severe hyponatremia disclosed after an accidental fall. He was anticoagulated from 2 months after the implantation of a biologic aortic valve prosthesis. The work-up disclosed adrenal failure and MRI showed bilateral adrenal hemorrhage. Clinical picture and lab parameters normalized quickly after the appropriate replacement treatment. Anticoagulation excess should be added to the list of drugs potentially causing hyponatremia.
Learning points:
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Hyponatremia requires a complete and timely workup in order to start an appropriate treatment for the improvement of clinical conditions.
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History is crucial: a detailed list of drugs potentially causing hyponatremia should be collected. Anticoagulants should be added to the list, mostly in the event of excessive anticoagulation.
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Intra-adrenal hemorrhage is a rare cause of hyponatremia and adrenal failure.
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The ACTH test is still the gold standard for the diagnosis of hypoadrenalism.
Hôpital du Sacré-Coeur de Montréal, University of Montreal, Montreal, Quebec, H4J 1C5, Canada
Search for other papers by Rémi Goupil in
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Search for other papers by Richard D Gordon in
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Search for other papers by Michael Stowasser in
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Summary
In patients with primary aldosteronism (PA) undergoing adrenal venous sampling (AVS), cortisol levels are measured to assess lateralization of aldosterone overproduction. Concomitant adrenal autonomous cortisol and aldosterone secretion therefore have the potential to confound AVS results. We describe a case where metanephrine was measured during AVS to successfully circumvent this problem. A 55-year-old hypertensive male had raised plasma aldosterone/renin ratios and PA confirmed by fludrocortisone suppression testing. Failure of plasma cortisol to suppress overnight following dexamethasone and persistently suppressed corticotrophin were consistent with adrenal hypercortisolism. On AVS, comparison of adrenal and peripheral A/F ratios (left 5.7 vs peripheral 1.0; right 1.7 vs peripheral 1.1) suggested bilateral aldosterone production, with the left gland dominant but without contralateral suppression. However, using aldosterone/metanephrine ratios (left 9.7 vs peripheral 2.4; right 1.3 vs peripheral 2.5), aldosterone production lateralized to the left with good contralateral suppression. The patient underwent left laparoscopic adrenalectomy with peri-operative glucocorticoid supplementation to prevent adrenal insufficiency. Pathological examination revealed adrenal cortical adenomas producing both cortisol and aldosterone within a background of aldosterone-producing cell clusters. Hypertension improved and cured of PA and hypercortisolism were confirmed by negative post-operative fludrocortisone suppression and overnight 1 mg dexamethasone suppression testing. Routine dexamethasone suppression testing in patients with PA permits detection of concurrent hypercortisolism which can confound AVS results and cause unilateral PA to be misdiagnosed as bilateral with patients thereby denied potentially curative surgical treatment. In such patients, measurement of plasma metanephrine during AVS may overcome this issue.
Learning points
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Simultaneous autonomous overproduction of cortisol and aldosterone is increasingly recognised although still apparently uncommon.
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Because cortisol levels are used during AVS to correct for differences in dilution of adrenal with non-adrenal venous blood when assessing for lateralisation, unilateral cortisol overproduction with contralateral suppression could confound the interpretation of AVS results
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Measuring plasma metanephrine during AVS to calculate lateralisation ratios may circumvent this problem.
