PT - JOURNAL ARTICLE AU - Kheloud Aboueldahab AU - Joseph Yikona AU - Nayeem Hasan TI - Abnormal presentation of haemorrhagic adrenal cyst AID - 10.1136/bcr-2020-241303 DP - 2021 May 01 TA - BMJ Case Reports PG - e241303 VI - 14 IP - 5 4099 - http://casereports.bmj.com/content/14/5/e241303.short 4100 - http://casereports.bmj.com/content/14/5/e241303.full SO - BMJ Case Reports2021 May 01; 14 AB - An 81-year-old patient presented with fever and lethargy for 3 weeks. There were no other signs or symptoms of infection. Detailed history revealed a fall onto his right flank, prior to the start of fever. All microbiological, autoimmune and oncological investigations were negative. CT scan of chest, abdomen and pelvis showed haemorrhage in a previously diagnosed simple adrenal cyst. The cyst was non-functioning. The patient continued to spike fever in the following 4 weeks, otherwise remained stable. The patient was managed conservatively as haemoglobin level was stable. Repeated scan showed signs of improvement. He was discharged after 5 weeks. He remained afebrile and asymptomatic at the planned endocrinology outpatient follow-up after 8 weeks.