lacrimal gland tumor
Introduction
Introduction to lacrimal gland tumor Lacrimal gland masses are more common, accounting for about 13% of all orbital tumors. Among them, lacrimal adenocarcinoma and lacrimal gland tumor are the most common. Lacrimal gland mixed tumor is a benign tumor, which occurs mostly in the age of 30, accounting for 50% of lacrimal gland tumors. It has a long course of disease and develops slowly, often lasting for several years, leading to exophthalmos, generally no Bone destruction. However, about 10% of cases have malignant changes. Lacrimal gland tumor is a malignant tumor, accounting for 25% of lacrimal gland tumors. It occurs mostly in middle and old people. It develops rapidly, accompanied by obvious pain and diplopia. It often occurs within 2 years, and can be transferred to the brain in the late stage. The prognosis is poor. . In most cases, glandular tissue is seen in the mucous parenchyma. It is composed of two layers of epithelial tissue, which can secrete mucous material and cause squamous metaplasia of squamous epithelium. The outer cells are metaplasticized to myxoma-like, fibrous or cartilage-like substances. Adenomas occur from the acinus of the lacrimal gland or from the epithelial cells of the duct, which can cause various changes in the stroma and present complex tissue changes. Multiple benign tumors were removed, and malignant tumors should be treated with sputum removal and supplemented with radiation therapy. basic knowledge Sickness ratio: 0.000352% Susceptible people: mostly occur in middle and old age Mode of infection: non-infectious Complications: lacrimal adenocarcinoma non-inflammatory simple exophthalmos
Cause
Lacrimal gland tumor cause
Causes:
In most cases, glandular tissue is seen in the mucous parenchyma. It is composed of two layers of epithelial tissue, which can secrete mucous material and cause squamous metaplasia of squamous epithelium. The outer cells are metaplasticized to myxoma-like, fibrous or cartilage-like substances. Adenomas occur from the acinus of the lacrimal gland or from the epithelial cells of the duct, which can cause various changes in the stroma and present complex tissue changes.
Prevention
Lacrimal gland tumor prevention
1. During the occurrence and development of tumors, the signs that are often manifested as early symptoms of the tumor, should be vigorously carried out publicity and education, improve the awareness of cancer prevention, and pay full attention to the early warning signs of cancer:
The breast, skin, tongue, or any part of the body that is accessible does not resolve the mass.
Significant changes have occurred in or .
Persistent indigestion.
Post-sternal discomfort during swallowing, abnormal esophageal sensation, and mild sputum sensation.
Deafness, hearing loss, nasal congestion, nasal discharge, or headache or neck lumps.
Vaginal bleeding outside the menstrual period or after menopause, especially after vaginal bleeding after sexual intercourse.
Sustained dry cough, bloody sputum, hoarse voice.
Fecal habits change, constipation diarrhea alternates, stool with blood, unexplained hematuria.
Wounds and ulcers that have not healed for a long time.
Unexplained weight loss.
2. Vigorously carry out the census of the tumor, which has a positive effect on improving the rate of early tumor discovery. For example, since the adoption of the alpha-fetoprotein screening in China in the early 1970s, the diagnosis of liver cancer has entered the asymptomatic stage, and some early liver cancers have achieved good results.
Complication
Lacrimal gland tumor complications Complications, lacrimal gland mixed tumor, non-inflammatory simple exophthalmos
Complications such as exophthalmos and visual impairment may occur as symptoms appear.
Non-inflammatory simple exophthalmos simple exophthalmos usually only have some abnormal signs of the eye, but no obvious symptoms. The main eye sign is that the upper eyelid levator muscle contracture and the upper eyelid contraction.
Eye functions include shape perception and light perception. Vision is a function that accurately represents the shape and can be divided into central vision and peripheral vision. Central vision is obtained through the center of the macula, and peripheral vision refers to retinal function outside the macula. Therefore, vision is one of the specific manifestations of visual function. Visual impairment, although very mild, also indicates that vision function has been affected.
Symptom
Symptoms of lacrimal gland tumors Common symptoms Lacrimal gland cysts Laryngeal gland enlargement Eyeballs can not be arbitrarily diplecting the fundus to change visual impairment
First, the lacrimal gland mixed tumor symptoms: a lump on the outer side of the eyelid, slowly developing, the eyeball protrudes inward and downward, no bone destruction.
1. Eyeball protrusion and eye movement disorder: The lacrimal gland mixed tumor originating from the lacrimal gland of the ankle invades the conjunctiva under the epithelium and the iliac crest. The mass is easy to be found early and sputum, and it can cause the ptosis to sag. A lacrimal gland mixed tumor of the ankle, early asymptomatic, with the tumor growing, the upper and the outer edge of the eyelid can be hard and irregular, with mobility, generally no adhesion to the skin and the gingival margin, followed by the eyeball forward and inside The displacement is prominent and there are obstacles to the outward and upward movement.
2, visual impairment: early visual acuity has no obvious changes, can have double vision. With the development of the disease course, there may be vision loss, which may be caused by tumor oppression caused by obvious astigmatism, or exposed keratitis, or optic nerve involvement.
3, fundus examination: sometimes visible papilledema, venous filling and retinal folds.
4, bone changes: X-ray film, CT examination, generally see the local expansion of the lacrimal gland, bone absorption or full eyelid enlargement, bone wall thinning, but no bone destruction.
Second, lacrimal gland cylindrical tumor symptoms: lacrimal gland hard lumps, adhesion to the bone, irregular surface, rapid development, with double vision pain. There are many fundus changes.
Examine
Examination of lacrimal gland tumors
1, fundus examination: sometimes visible papilledema, venous filling and retinal folds.
2, bone changes: X-ray film, CT examination, generally see the local expansion of the lacrimal gland, bone absorption or full eyelid enlargement, bone wall thinning, but no bone destruction.
Diagnosis
Diagnosis and diagnosis of lacrimal gland tumor
1. A lump is found on the outside of the iliac crest, which does not adhere to the skin and the gingival margin. The benign person develops slowly and does not have pain.
2. Malignant people develop rapidly and are accompanied by pain, and bone destruction of the tibia is often seen.
3. The lacrimal gland tumor of the ankle is often caused by eyeball displacement and diplopia when the tumor grows to a certain extent. In severe cases, oppression of the eyeball leads to decreased vision, retinal hemorrhage and choroidal detachment.
4. The lacrimal gland tumor of the ankle often leads to a change in the position of the upper eyelid and a lesser effect on the eyeball.
5. Tumor resection and delivery of the disease is the final diagnosis.
