CT Evaluation of Postoperative Neck Dissection.
10.3348/jkrs.1995.32.2.231
- Author:
Nam Joon LEE
;
Jung Hyuk KIM
;
Hwan Hoon CHUNG
;
Mee Ran LEE
- Publication Type:Original Article
- MeSH:
Follow-Up Studies;
Humans;
Jugular Veins;
Laryngectomy;
Myocutaneous Flap;
Neck Dissection*;
Neck*;
Neoplasm Metastasis;
Radiotherapy;
Recurrence;
Retrospective Studies;
Superficial Back Muscles;
Tomography, X-Ray Computed
- From:Journal of the Korean Radiological Society
1995;32(2):231-236
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To evaluate CT findings of normal anatomic alteration after neck dissection. MATERIALS AND METHODS: The postoperative CT findings were retrospectively reviewed in 40 patients with neck dissection, comparing to preoperative CT. There were 28 patients with radical neck dissection and 12 patients with modified radical neck dissection or selective neck dissection. In addition to the neck dissection, 10 patients had undergone pectoralis major myocutaneous flap reconstruction, 20 patients taken laryngectomy, and 25 patients treated with radiotherapy. RESULTS: The typical CT findings of radical neck dissection were non-visualization of internal jugular vein and sternocleidomastoid muscle(28/28), ipsilateral neck flattening(26/28), and trapezius muscular atrophy(12/28). The other non-specific findings were tissue plane eftacement, subcutaneous reticular pattern, platysma muscle thickening, and adjacent soft tissue contrast enhancement which was the only evidence of previous operation in the cases of modified radical neck dissection or selective neck dissection. Reconstruction with myocutaneous flap was shown as ipsilateral bulk of fat and muscle(10/10). In cases with radiation therapy there was much increased density of submandibular gland(12/25). 15 patients showed recurrence on follow up CT scan, including regional metastasis in 10, stomal recurrence in two, and residual mass at primary site in three patients. CONCLUSION: CT is useful in evaluation of patients with neck dissection and in whom postoperative change impese diagnostic problem.
