5. 조직학적 분류는 세포유형에 따라 방추형과 상피양형태로 구분하였던 바 방추형 세포형이 45예, 상피양 세포형이 30예였다.
6. 예후관계인자로 통계학적 유의성을 보였던 것은 괴사, 크기, 유사분열의수였고, 이중 가장 객관적이고 높은 설명도를 보인 것은 유사분열의수였다. (회기분석에서 20% 설명도)
7. Ag-NORs수는 소화기간엽종양의 예후와 관련이 없으며, 각세포유형별과 장기별로 보아도 매우 다양한 수치를 나타내었다.
[영문]
The histogenesis and criteria in malignancy of gastrointestinal mesencymal tumors are still controversial. To evaluate the clinicopathologic characteristics of these tumor, we studied the histological prognostic factors by using 75 cases of gastrointestinal mesenchymal tumors which were diagnosed and surgically resected in the Department of Pathology Yonsei University College of Medicine, Youngdong Severance Hospital and Wonju College of Medicine in the period from 1983 to 1990.
The histologic findings were reviewed in all cases and the prognostic factors including the Ag-NORs count were analysed by using 50 follow-up cases. The results are as follows.
1. The age ranged from 23 and 83 year-old, and averaged 53.7. The ratio of male to female patients was 1.3:1.
2. The tumor locations and numbers were stomach (33), small intestine (31) and large intestine (11).
3. The tumor size was variable from 2 to 35cm. The growth pattern showed extraluminal (50), intramural (17), and intraluminal (8)
4. Histologic pattern was divided into spindle cell and epithelioid cell type, and spindle cell type was more frequent than epithelioid cell type (45 vs 30).
5. The mitotic count, tumor size, and necrosis had prognostic significancy. The most significant predictor was mitotic count.
6. The relationship between the Ag-NORs count and prognosis was absent and Ag-NORs count was variable from the sites and cell shapes.