Pneumosinus Dilatans of the Frontal and Ethmoidal Sinuses Revealed by Conscience Disorder and Respiratory Distress: Case Report and Literature Review.

An abnormal enlargement of the air-filled paranasal sinuses is referred to as pneumosinus dilatans. Typically discovered incidentally through radiological examinations, it infrequently manifests as cosmetic, neurological, ocular, or rhinological pathologies. Thorough evaluation for associated conditions is essential in patients with pneumosinus dilatans, including meningiomas of the anterior skull base or the optic nerve sheath. In our work, we report a 75-year-old female patient who presented with dysarthria and lower facial asymmetry. The computed tomography (CT) scan revealed pneumosinus dilatans of the frontal and ethmoidal sinuses with subfalcine herniation. During hospitalization, the patient presented with conscience disorder secondary to ischemic stroke and respiratory distress secondary to aspiration pneumonia. In our work, we also discuss reported cases of the English literature.