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Sialolithiasis Radiology

last modified on: Tue, 06/27/2017 - 23:04

Sialolithiasis

Sialolithiasis

Parotid Sialogram Stone

Submandibular gland stone removal sialendoscopy case example

  •  80-90% of stones occur in the submandibular gland, 10-20% occur in the parotid gland
  •  25% of patients with one stone with have multiple stones; bilaterlal stones are very rare, however
  •  80% of submandibular and 60% of parotid stones are visible on plain radiographic imaging
  •  Uric acid stones may form in the setting of gout - the only systemic disease known to produce salivary stones
  •  Non-contrast CT is highly sensitive for small stones not otherwise visible on plain film
  •  Non-calcified stones and duct dilatation are best observed with sialogram
  •  Treatment can involve transoral ductotomy, extracorporeal shock wave lithotripsy, or duct and gland excision
  •  More recently sialendoscopy with sialithectomy has gained popularity as a treatment option