Sialography serves as a diagnostic tool to evaluate anomalies affecting_______________?
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Answer: C. Salivary gland & duct
Explanation
Sialography is a radiographic imaging technique used to visualize both main salivary ducts and intraglandular architecture. Radiopaque contrast media injected into the ductal orifice outlines branching ductal networks and acinar structures. This visualization helps detect strictures, sialoliths, and inflammatory changes within major salivary glands. Sialography involves cannulating the parotid or submandibular duct followed by the injection of liquid contrast agent. Fluoroscopy and conventional radiographs capture images of the filled ductal system during the procedure. The technique has been largely supplemented by non-invasive imaging like ultrasound, CT, and magnetic resonance sialography.
Radiologists and oral surgeons use sialography to diagnose chronic obstructive sialadenitis and ductal strictures. Evaluating ductal architecture assists in identifying inflammatory, obstructive, and neoplastic salivary gland disorders. Careful injection techniques prevent painful ductal rupture or severe inflammatory exacerbations during imaging. Restricting evaluation to the salivary duct only ignores the comprehensive acinar visualization provided by sialography. Limiting evaluation to the gland parenchyma overlooks the crucial ductal system details clearly outlined by contrast media. Salivary gland tumors are evaluated by biopsy and advanced cross-sectional imaging rather than primary sialography.
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