Pneumoparotid

Imaging of
parotid anomalies in infants and children. Right pneumoparotid complicated with deep cervical emphysema, of unknown etiology, on axial CT image. Courtesy Dr. M. Mabille (CHI Créteil, France)
insightsimaging.springeropen.com • CC-by-4.0
Iatrogenic
pneumoparotid secondary to biopsy of buccal mucosal tumour. Presence of air in the right Stenson’s duct (yellow arrow). The left parotid duct appears collapsed
www.eurorad.org • CC by-nc-sa-4.0
Iatrogenic
pneumoparotid secondary to biopsy of buccal mucosal tumour. Presence of air in the intraglandular portion of Stenson’s duct of the right parotid gland (red marrow)
www.eurorad.org • CC by-nc-sa-4.0
Pneumoparotid.
CT axial section showing intraglandular air pockets in right parotid.
www.eurorad.org • CC by-nc-sa-4.0
Pneumoparotid.
CT axial section showing intraductal air pockets in right parotid.
www.eurorad.org • CC by-nc-sa-4.0
Pneumoparotid:
a rare but well-documented cause of parotid gland swelling. Plain axial computed tomography (CT) scan of the head showing a rounded air-filled left parotid mass
ejo.springeropen.com • CC-by-4.0
Pneumoparotid:
a rare but well-documented cause of parotid gland swelling. Plain axial computed tomography (CT) scan of the head during Valsalva maneuver showing a rounded air-filled left parotid mass with bilateral dilatation of the Stensen’s duct
ejo.springeropen.com • CC-by-4.0
Radiopaedia • CC-by-nc-sa 3.0 • de

Pneumoparotid refers to air in the parotid gland and can cause unilateral/bilateral parotid swelling. In severe cases it can be associated with subcutaneous emphysema.

Epidemiology

Any profession or recreation that increases oral positive pressure can cause air to reflux up the parotid ducts into the parotid gland. Examples include brass/woodwind players, glassblowers and underwater divers.

Pathology

Any profession or recreation that increases oral positive pressure can cause air to reflux up the parotid ducts into the parotid gland. Examples include brass/woodwind players, glassblowers and underwater divers.

Non-occupational causes are self-induced, such as suppressing chronic cough. It may also be part of a psychiatric and malingering disorders.

Radiographic features

Air can be shown within the parotid on x-ray, ultrasound or CT with the latter being the most sensitive .

Siehe auch:
Assoziationen und Differentialdiagnosen zu Pneumosialadenitis:
Valsalva-Manöver
 
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