Objective: To evaluate the clinical application of multi slice CT(MSCT) in hypopharyngeal carcinoma and serve otolaryngologist to institute proper operation.
Method: Forty-five patients with hypopharyngeal carcinoma scanned by MSCT were studied and confirmed by operation and pathologic examination. The operation material were retrospectively analyzed. All the cases were used for the enhancement scanning, whose scope was from hard palate to cervical segments of esophagus.
Result: Of 45 cases, 34 cases derived from piriform fossa, 7 cases were from the postcricoid region and 4 cases were in the posterior wall of hypopharynx. The tumor showed isodense or mixed density and slightly enhancement, piriform fossa became narrow or disappeared, retropharyngeal soft tissue thickened, laryngeal cartilage and esophageal ostium were invaded and lymph nodes of neck became metastasis. The tumor pushed the annular and arytenoids cartilage displacement anteriorly; the thyroid arytenoidal gap and cricothyroid joint were widened. The operation plan that was made according as MSCT was almost agreed with actual operation. The consistent rate is 91.1% (41/45).
Conclusion: MSCT examination can accurately diagnose and exhibit the extension of the tumors and detect metastasis to lymph nodes, and provide reliable basis for surgery therapy.
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