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对围产期３２例胎龄为４１２～７个月的男女死婴的６４侧颌下腺组织进行光镜观察。结果提示：①１３例１３侧颌下腺囊外边缘见淋巴结构样组织，占２０．３１％，其形态改变一种周围有明显的纤维组织包绕，内有淋巴窦，淋巴索，血管及散在淋巴细胞；另一种周围只有１～２层纤维组织包绕，内有淋巴窦及丰富的血管，散在的淋巴细胞；②２例２侧颌下腺边缘的血管，淋巴管内充满淋巴细胞及其周围见淋巴细胞聚集，占３．１３％。４例８侧颌下腺小叶内见淋巴管，血管内充满淋巴细胞及其周围见淋巴细胞聚集。１例淋巴结构样组织直接与颌下腺连接，其内见颌下腺腺泡；③对颌下腺内有无淋巴结及其发生学进行了初步的探讨
Peripheral 32 cases of gestational age of 412 to 7 months of male and female infants died of 64-year-old submandibular gland tissue under light microscopy. The results suggest that: ①13 cases of 13 submandibular gland cysts see the outer edge of the lymphoid structure-like tissue, accounting for 20.31%, a change in its shape around a significant fibrous tissue surrounded by lymphatic sinus, lymph vessels, blood vessels and scattered lymphocytes ; The other around only 1 or 2 layers of fibrous tissue surrounded by lymphoids and rich blood vessels, scattered lymphocytes; ② 2 cases of 2 submandibular gland edge of the blood vessels, lymphatic vessels filled with lymphocytes and see the surrounding lymphocyte aggregation , Accounting for 3.13%. In 4 cases, the lymphatic vessels were found in the parietal submandibular gland lobes. The blood vessels were filled with lymphocytes and the surrounding lymphocytes were found. One case of lymphoid tissue was directly connected to the submandibular gland, and the submandibular gland was seen in it. The preliminary study on the presence or absence of lymph nodes in the submandibular gland and its genesis