Basal cell adenoma
Introduction
Introduction to basal cell adenoma Basal celladenoma is a benign epithelial tumor of the parotid gland. Kleinsasser and Klein (1967) first described its pathological manifestations and classified it as a type of parotid tumor. Evans (1970) further elaborates on the characteristics that the tissue source of basal cell adenomas is a fistula cell or a reserve cell. basic knowledge The proportion of illness: 0.001% Susceptible population: more common in male patients Mode of infection: non-infectious Complications: corneal ulcer
Cause
Basal cell adenoma etiology
Cause
The disease occurs in the fistula cells or the fistula reserve cells. Since the disease is a relatively rare tumor of the parotid gland, no cause has been found.
Prevention
Basal cell adenoma prevention
There are no effective preventive measures for this disease. Early detection, early diagnosis and early treatment are the key to the prevention and treatment of this disease. Once the disease occurs, it should be actively treated to prevent the occurrence of complications.
Complication
Basal cell adenoma complications Complications corneal ulcer
Complications are rare, and occasionally there are surface ulcers.
Symptom
Basal cell adenoma symptoms Common symptoms Slow growth dysarthria - hand stupid... Heterogenous ACTH
Basal cell adenomas account for about 2% of parotid tumors, which occur in the parotid glands in the large parotid gland. The upper lip of the parotid gland is the most common. It is more common in male patients. It is rare in people younger than 40 years old, with the most incidence from 50 to 60 years old.
The tumor grows slowly, has a long course of disease, and has no symptoms. It often treats with a painless mass. The tumor has clear boundaries, no adhesion to surrounding tissues, and activities are mostly round or oval, and the texture is soft.
Parotid gland angiography is a space-occupying lesion of benign tumors.
Examine
Basal cell adenoma examination
1. Parotid gland angiography is a space-occupying lesion of benign tumor.
2, the general form: basal cell adenoma is round or oval, smooth surface, intact capsule, clear boundary with surrounding tissue, tumor volume is generally small, tumor section is mostly solid, grayish white, also cystic The profile is a cyst of varying sizes, containing a thin brown-red mucus sample.
3, microscopic examination: composed of tumorous epithelial cells and a small amount of connective tissue, tumor cells densely clustered or strip-like, cells are round, oval or fusiform, less cytoplasm, basophilic, nuclear round Shape, deep staining, nucleoli are not obvious, sometimes the peripheral part of the epithelial mass is arranged in a single layer, which is similar to the basal cell carcinoma of the skin, but the mitotic figures are rare, the intramuscular cells are lacking, and the boundary between the tumor and the stroma It is clear that there are septal membranes separated. In some cases, there may be cysts of different sizes in the epithelial mass. The cystic cavity is filled with degenerative tumor cells, and the interstitial is fibrous connective tissue with minimal mucus content.
Diagnosis
Diagnosis and diagnosis of basal cell adenoma
diagnosis
Diagnosis can be made based on medical history, clinical manifestations, and examination.
Differential diagnosis
Need to be differentiated from pleomorphic adenoma, tubular adenocarcinoma, adenoid cystic carcinoma.
