FRI198 Acute Pancreatitis And Diabetic Ketoacidosis As A Presentation Of Subclinical Cushing Syndrome

Disclosure: W.H. Alkhidady: None. N. Almefgaie: None. A. Ekhzaimy: None. Case Report: A 43-year-old Saudi woman, presented to the emergency department with two days history of right upper quadrant pain, radiating to the back. Associated with nausea and vomiting with no history of diarrhea, constipation, or constitutional symptoms. She has a 4-year history of hypertension on 5 mg amlodipine with no history of endocrine or malignant tumors. On Examination she was alert, severely dehydrated with temperature of 37 °C, pulse of 124 per minute, blood pressure of 147/61 mmHg. The abdomen was tender in the right upper quadrant area. A laboratory examination showed lipemic sample with high triglycerides level 11mmol/L (0.4-1.48), high amylase 763nu/l (25-115), lipase 5773 u/l (73-393), low potassium level 2.6 mmol/l (3.50-5.10) and low calcium level 1.25 mmol/l (2.10-2.55). The urine analysis showed 4+ glucosuria and ketonuria. Her venous blood gas showed pH of 7.18 and bicarbonate of 10 mmol/L, random blood glucose was 16 mmol/L and anion gap could not be calculated at that time. A diagnosis of DKA secondary to acute pancreatitis secondary to high triglycerides level was made and management was started along with plasmapheresis. A CT pancreatitis protocol was done which showing a 4.2 x 3.5 cm well-circumscribed left adrenal lesion. An MRCP showed 4.3 cm well defined collision tumor in left adrenal gland, its peripheral part is suggestive of adenoma. further work up showed negative 24-hours urine metanephrins, normal Aldosterone Renin ratio, High 24-hour urine cortisol level 644 nmol/l, low ACTH 0.6 pmol/l and morning cortisol level post 1 mg DST was not suppressed on two different occasions. Since the patient had no phenotypical presentation of Cushing’s a diagnosis of SCS was made. She underwent left robotic assisted adrenalectomy, with pathological diagnosis of adrenocortical adenoma. 2 days later, AM cortisol level reduced to 230 nmol/L. while blood pressure and serum potassium remained normal with no signs of adrenal insufficiency. Her Diabetes mellitus and Hypertriglyceridemia resolved after left adrenalectomy. Conclusion: This case report demonstrates the uncommon association of subclinical Cushing syndrome and acute pancreatitis as a first presentation therefore it highlights the significant role of endocrine evaluation of any young patient with unexplained acute metabolic presentations. Presentation: Friday, June 16, 2023