Pneumoparotid

Case contributed by Dr Charlie Chia-Tsong Hsu

Presentation

Right facial pain.

Patient Data

Age: 60
Gender: Male
Annotated image

Non contrast CT head demonstrates air within the right Stensen's duct and the acini of the parotid gland. Both parotid glands appears symmetric and there is no periglandular stranding/inflammation.

The normal path of the Stensen's duct is exquisitely outline by air as it courses over the masseter muscle before piercing the buccinator muscle. 

Case Discussion

Pneumoparotid maybe due to raised intra-oral pressure resulting incompetence of the valvular mechanism created by the angulated distal intramuscular segment of the Stensen's duct and the buccinator muscle. This maybe occupational related from playing wind instruments, SCUBA diving or iatrogenic. Recognising this entity is important as the patient maybe prone to superimposed parotitis/infection due to the lost of normal valvular mechanism. 

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Case information

rID: 37416
Case created: 8th Jun 2015
Last edited: 30th Sep 2015
System: Head & Neck
Inclusion in quiz mode: Excluded

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