Giant cyst of the liver with complete resolution following blunt trauma to the abdomen

Here we report on a 78-year old female who was admitted to a local hospital with unspecific abdominal complaints. Sonography showed a solitary liver cyst 30 cm in diameter confirmed by computed tomography. At that time the patient refused any intervention. Thus, neither needle puncture nor operation were carried out. Approximately three years later patient was reexamined following a fall with blunt trauma to the chest and abdomen. Ultrasound examination now indicated complete disappearance of the cyst and this was confirmed by computed tomography. To our knowledge disappearance of such a large cyst following a blunt trauma has not been previously documented by CT imaging.