RDS and superimposed RSV pneumonitis. A<unk>  is a cavity in the lung parenchyma filled with air that may result from pulmonary trauma during mechanical ventilation. Gas-filled, or air-filled lesions in bone are known as pneumocysts. When a pneumocyst is found in a bone it is called an intraosseous pneumocyst, or a vertebral pneumocyst when found in a vertebra.
Pneumatocele
Hematocele
Varicocele
Hydrocele
Urethrocele
Spermatocele
Inguinal hernia
Hydrocele testis