560 Case Report: A Very Rare Case of Incidentaloma of a Large Adrenal Cavernous Haemangioma
Abstract Introduction Incidentaloma are asymptomatic and unanticipated adrenal tumours found on radiological imaging for unrelated diagnostic inquiries. Adrenal cavernous haemangioma is a rare, differentiated and benign tumour arising from the endothelial layer of blood vessels. This is a rare phenomenon with only 66 cases reported in the literature between 1955 and 2018. Case Details This is a case of a 79-year-old Caucasian gentleman who presented in March 2020 with vague abdominal discomfort and anaemia on a background of multiple co-morbidities including in particular, an asymptomatic left 5.6cm adrenal incidentaloma found in 2014. A computed tomography scan of abdomen-pelvis in June 2020 revealed progression in size of the incidentaloma to 20.8cm. Biochemical tests confirmed non-functioning adrenal tumour. The patient underwent open left adrenalectomy, left nephrectomy, splenectomy and distal pancreatectomy. The diagnosis of adrenal cavernous haemangioma was subsequently made on histopathological examination. Post-operatively, our patient made a good physiological recovery. Discussion There are no established diagnostic and treatment guidelines for adrenal cavernous haemangioma. Larger tumours are often treated surgically to exclude malignancies and to prevent potential complications as well as symptom relief. Literature reviews showed that most cases were surgically managed, and diagnoses were made through histology post-operatively. Conclusions Adrenal cavernous haemangioma typically present as incidentalomas which require further investigations. They are very rare non-functioning benign tumours that can be difficult to be differentiated from other adrenal malignancies.