Diagnosis and Treatment > Medication
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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.
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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.