SAT323 Management Of Severe Cushing’s Syndrome Due To Cortisol Secreting Adrenal Tumor In A Critically Ill Patient

Disclosure: H. Obeid: None. E.D. Buras: None. T. Else: None. Introduction: Severe Cushing’s syndrome is associated with multiple life threatening complications. Clinical Case: A 69 year-old man with Cushing’s syndrome was admitted to the hospital with septic shock due to bacteremia with necrotic left lower extremity infection. He required above knee amputation. His hospital course was complicated with invasive pulmonary Aspergillosis and ventilator associated pneumonia. He developed acute kidney injury that required dialysis, altered mental status, deep venous thrombosis bilateral pulmonary embolisms, bleeding duodenal ulcer and retroperitoneal hematoma. Prior to admission: Random cortisol was 31.7 mcg/dL (Normal: 4.8-19.5 mcg/dL), AM Cortisol following 1 mg oral dexamethasone was 47 mcg/dL (Normal: <1.8 mcg/dL), DHEA-s was 210 mcg/dL (normal: 33.6-249 mcg/dL) and 24 hour urine free cortisol was 622 mcg/day (Normal: <60 mcg/day). ACTH was undetectable. An FDG-PET scan showed a 6.5 centimeters hypermetabolic left adrenal mass with internal coarse calcifications but no evidence of metastasis. Etomidate drip, Metyrapone and Osilodrostat were tried to lower excess cortisol production. During admission while on Osilodrostat: Cortisol level: 20 mcg/dL (normal: 8-19 mcg/dL). Deoxycorticosterone: 53 ng/dL (Normal: 2-19 ng/dL). 11-Desoxycortisol: 580 ng/dL (Normal: 12-158 ng/dL). 17-alpha-hydroxyprogesterone: 45 ng/dL (Normal: 27-199 ng/dL). Surgery was considered, but adrenalectomy was deemed high risk and not pursued. Therefore, the patient underwent computed tomography (CT) cryoablation of the left adrenal gland. Labs following cryoablation: Cortisol: 7.7 mcg/dL. Deoxycorticosterone: 10 ng/dL. 11-Desoxycortisol: 34 ng/dL. 17-alpha-hydroxyprogesterone: 25 ng/dL. The procedure was complicated by T11/T12 intercostal artery injury leading to hemothorax. He was continued on physiologic doses of hydrocortisone. On follow up 4 weeks following discharge, he had complete resolution of hypercortisolism symptoms. A repeat whole body PET scan showed persistent FDG-avid neoplasm in left adrenal area, as well as metastasis in the liver and the duodenum. Conclusion: It is critical to control hypercortisolism in patients with Cushing’s syndrome. Several medications can be used. Surgical adrenalectomy remains the gold standard for treatment. CT-guided cryoablation of the adrenal tumor is a reasonable alternative when patient is not a surgical candidate. However, it is not a completely benign procedure as it can be associated with complications. Our treatment approach improved short term outcome for our patient, but did not provide long term benefit since he developed metastasis. Presentation: Saturday, June 17, 2023