Adipsia and/or diabetes insipidus is rarely a direct complication of astrocytoma. We report a young man with recurrence of anaplastic astrocytoma who presented as severe hypernatremia. This case highlights key diagnostic and therapeutic challenges: (1) the interpretation of the response to exogenous vasopressin in a patient with steroid-induced hyperglycemia and (2) the potential risk of brain edema and herniation if excess water is prescribed along with vasopressin supplementation. The patient was successfully managed with prescribed fluid replacement, daily weights, and regular electrolyte monitoring but no exogenous vasopressin for 8 months until he succumbed to his tumor.
Goodpasture’s disease is a life-threatening autoimmune disease that can lead to end stage renal disease and death. We report a case of 61-year-old female who presented with deteriorating renal function. Initial laboratory investigations were negative for autoimmune antibodies including negative anti-neutrophilic cytoplasm antibodies and anti-glomerular basement membrane (anti-GBM) antibodies using both enzyme-linked immunosorbent assay and indirect immunofluorescence. However, renal biopsy was positive for linear IgG staining. Despite starting plasmapheresis and corticosteroids treatment, her renal functions continued to deteriorate and she was started on regular hemodialysis. This case highlights the challenging presentation and diagnosis of anti-GBM disease, which requires a high clinical suspicion necessarily for early diagnosis and treatment to improve survival rates.
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