이하선 병변에서 활경근 침윤의 빈도와 조건 = Platysma Infiltration on CT or MRI in Parotid Pathology

다국어 초록 (Multilingual Abstract)

Purpose To evaluate the incidence and condition of platysma infiltration in benign tumors, malignant tumors, and inflammatory disease in the parotid gland using CT or MRI.
Materials and Methods Patients with benign tumors (n = 314), malignant tumors (n = 52), and inflammatory disease (n = 22) in the parotid gland were included. The incidence of platysma infiltration and the relationship between platysma infiltration and the location, capsular involvement, and focality of the mass were retrospectively evaluated using CT or MRI.
Results The incidence of platysma infiltration was 0% in benign tumors,19.2% in malignant tumors (10/52), and 50.0% in inflammation (11/22). Platysma infiltration was positive in 10 of 13 patients with inflammatory lesion with capsular involvement. Platysmal infiltrations in inflammatory lesion showed diffuse lesion in 10 patients and focal lesion in one patient. Malignant tumor with platysmal infiltration showed all capsular involvement, and diffuse lesion in seven and focal lesion in three.
Conclusion Platysma infiltration was more common in patients with inflammatory disease than those with malignant tumors or benign tumors. In inflammatory disease, platysma infiltration was more common in patients with capsular involvement or diffuse lesion.

국문 초록 (Abstract)

목적 CT나 MRI에서 이하선의 양성종양, 악성종양 및 염증 질환에서 나타나는 활경근 침윤의빈도와 어떤 상황에서 잘 일어나는지 그 조건을 알아보고자 하였다.
대상과 방법 이하선에서 발생한 양성종양 314명, 악성종양 52명 그리고 염증 22명을 대상으로하였다. CT나 MRI에서 활경근 침윤의 빈도 및 병변의 위치, 피막침범 유무, 국소성에 따른활경근 침윤 유무를 후향적으로 알아보았다.
결과 활경근 침윤의 빈도는 양성종양에서 0%, 악성종양에서 19.2% (10/52), 염증 환자에서50% (11/22)였다. 피막을 침범한 염증 환자 13명 중 10명에서 활경근 침윤을 보였다. 활경근침윤을 보인 염증 환자 11명 중 10명이 미만성을, 1명은 국소성을 보였다. 활경근 침윤을 보인 악성종양 총 10명 모두에서 피막을 침범하였으며, 그중 미만성 병변이 7명, 국소성이 3명이었다.
결론 이하선 질환에서 활경근 침윤은 악성종양보다 염증 질환에서 더 흔하게 일어났다. 염증질환에서의 활경근 침윤은 이하선 피막을 침범하거나 미만성 병변일 경우 더 잘 나타났다.

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