Newborn with a left upper quadrant mass Pediatric Imaging Genitourinary January 21, 2019July 16, 2019 Sagittal US of the left kidney shows a primarily cystic appearing left adrenal mass. Over months this mass was noted to decrease in size and disappear on serial ultrasound exams. The diagnosis was adrenal hemorrhage. Related Published January 21, 2019July 16, 2019