Erdheim Chester disease (ECD) is a rare non-Langerhans cell histiocytosis, commonly involving the musculoskeletal system. Other tissue can also be involved, including the central nervous system with wide spectrum of clinical features, at times being nonspecific. This can cause diagnostic dilemmas with delay in diagnosis and initiation of therapy. Here we describe a 63-year-old man who had presented with ataxia and behavioral changes, bony pains, weight loss, and fatigue. His computed tomography (CT), 99Tc scintigraphy and histopathological features on bone biopsy were consistent with ECD. Thus, ECD should be considered as a differential diagnosis in patients presenting with bony pain and nonspecific features of multiorgan involvement.

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Hypercalcemia rarely causes acute pancreatitis due to secretory block in the pancreas and damage by accumulated proteases. Hypercalcemia, though described in granulomatous disorders, is uncommon in tuberculosis. Acute kidney injury is known to occur with acute pancreatitis, secondary to sepsis and septic shock; however, acute pancreatitis resulting in acute cortical necrosis is very rare. We report a 22-year-old woman, who presented with pain abdomen and vomiting. She was found to have features of acute pancreatitis, both biochemically and radiologically. She had hypercalcemia on presentation and this was attributed to be the cause for pancreatitis as other causes were ruled out. 1, 25-dihydroxyvitamin D level was high with normal parathyroid hormone level. Whole-body positron emission tomography-computed tomography showed increased fluorodeoxyglucose uptake in the terminal ileum and histology from that area showed noncaseating granuloma with acid-fast bacilli in the tissue. She was treated with antituberculosis therapy; hypercalcemia improved over a period of time and pancreatitis resolved. She developed anuric renal failure, and kidney biopsy showed patchy acute cortical necrosis. She is dialysis dependent at the end of 6 months. To the best of our knowledge, this is the first case report of a patient with ileal tuberculosis presenting with hypercalcemia and acute pancreatitis. This case is reported due to the rarity of extrapulmonary tuberculosis presenting with symptomatic hypercalcemia, acute pancreatitis, and acute renal cortical necrosis.

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