conjunctival epithelial cancer resection

Conjunctival epithelial cancer is more common in 50 to 75 years old, more men than women, eye damage, vitamin A deficiency and eyeball removal can be the cause of this disease. Tumors occur near the limbus of the cleft palate, where they are exposed to air, sunlight, and vulnerable areas. The temporal margin of the temporal side is more common, followed by the lacrimal and sacral conjunctiva, which can also occur in the conjunctiva of the iliac crest. The tumor is thick, sessile, orange-red granule-like, and appears to grow in the cornea, but in reality only the tumor covers the cornea. The surface of the tumor often has cleft palate, often bleeding during it. The papillary type is hard and has a garnet-like nipple on the surface. When it occurs on the entire circumference of the limbus, it forms a ring shape. When it occurs in tears, it is cystic, belonging to the type of sebaceous adenoma. Diffuse, all bulbar conjunctiva are involved, this type of malignancy is high, prone to lymph node metastasis, poor prognosis. Vascular formation is seen under the slit lamp microscope as a major feature of this tumor. Each of the original lobes of the tumor has a vascular axis composed of capillaries that crawls to the tip of the leaflet, ie, bends downward and disappears into the capillary network that is in agreement with each other. In some lobes, the capillaries are scattered to form one or more small blood vessels. ball. There is also obvious angiogenesis near the tumor. Radiation therapy is available in patients with a wide range of tumors and lymph nodes (anterior or mandibular). Treatment of diseases: giant papillary conjunctivitis Indication Conjunctival epithelial cancer resection is applicable to: 1. For the diagnosis, a histopathological examination is performed and the tumor is completely removed before the tumor is transferred. 2. Tumor scraping is done for cytological examination, which is difficult to judge correctly; and this biopsy is easy to promote tumor metastasis. Therefore, it is best to completely remove the tumor for pathological examination. Contraindications The tumor has expanded to the conjunctiva of the Qianlong. At this time, it is advisable to do sputum removal or radiation therapy. Surgical procedure 1. First coagulate a conjunctiva around the tumor and then remove it. 2. Under the operating microscope, the normal bulbar conjunctiva is at least 5 mm away from the tumor. 3. Cut to the superficial sclera, peel off from the normal superficial sclera, and completely remove the tumor. 4. The large defect surface of the sclera is transplanted into the mucous membrane and fixed on the superficial sclera. 5. Injecting gentamicin 40,000 U (add 2% procaine 0.2 ml to avoid pain), drip compound honey eye drops, apply 1% atropine and antibiotic eye ointment.