Parotid Gland Blockage -

| Modality | Sensitivity for stones | Best for | |----------|----------------------|----------| | | >90% for stones >2 mm | First-line; no radiation; detects ductal dilation. | | Plain radiography | Poor (only 20-40% visible) | Only for radiopaque calcium stones. | | CT without contrast | ~90% | Detects small or radiolucent stones; better for deep lobe. | | Sialography | High for stenosis | Invasive but defines ductal anatomy; not during acute infection. | | MRI / MR sialography | Moderate | Noninvasive ductal visualization, useful in recurrent idiopathic cases. |

Treatment depends on the size of the stone and the severity of the blockage. parotid gland blockage

What is parotid duct obstruction? In parotid duct obstruction, part of your parotid duct becomes blocked. As a result, saliva can' Cedars-Sinai Parotid Cancer - StatPearls - NCBI Bookshelf - NIH | Modality | Sensitivity for stones | Best

: Dehydration, smoking, and certain medications (like diuretics or anticholinergics) can increase the risk of stone formation. Symptoms to Watch For | | Sialography | High for stenosis |