Rigid bronchoscopy is commonly used as the standard method to diagnosis and remove obstructive material from the tracheobronchial tree. However, a rigid bronchoscope has limitations when removing a foreign body with surface properties that make it difficult to grasp. We experienced a case that involved the removal of a mucoid impaction, which was accompanied by a near-total unilateral lung collapse, using a Fogarty catheter with flexible bronchoscopy.