67 yo nursing home patient presents with altered mental status. Vitals signs are as follows: BP 92/78, HR: 115, RR: 35, O2 sat: 89%. Patient is moaning and uncooperative with the physical exam. On auscultation, you are unable to appreciate any overt lobular rales or wheezing. You think you feel a distended bladder in the suprapubic region. Ultrasound shows the following in the right posterior lung field. What is the finding and diagnosis?