Background Adenomatoid tumours are presented as rare neoplasms of mesothelian origin, with different location, which can easily mimic specific diseases presented as adrenal incidantelomas, eg pheochromytoma, Cushing syndrome or adrenal carcinoma. The incidence does not allow providing specific pathognomic characteristics and the differential diagnosis may be proven challenging. Case presentation NK, a 49 year old mechanic engineer, without remarkable medical history, non smoker, was examined by cardiologist (IM) & pneumologist (NB) due to atypical chest & mostly back pain., after having visited public hospital (2th 2017). Where blood count, troponine, biochemical analysis, chest Xray & heart doppler revealed anything notable. The chest ct scan ordered by NB revealed multiple shadings up to 3mm, propably as remains of lung infection. The main finding was a large hypodense mass 8*4 cm at the right adrenal location, probably outrived from it.