Parotid gland painless mass
Introduction
Introduction Basal cell adenomas present as a painless mass of the parotid gland. The tumor grows slowly, has a long course of disease, has no symptoms, and often visits with a painless mass. The tumor has clear boundaries and no adhesion to surrounding tissues. Mostly round or oval, the texture is soft.
Cause
Cause
The disease occurs in the fistula cells or the fistula reserve cells. Because this disease is a relatively rare tumor of the parotid gland, no research has found its cause.
Examine
an examination
Related inspection
Blood routine X-ray lipiodol imaging head palpation
Basal cell adenomas account for about 2% of parotid tumors, which occur in the parotid glands in the large parotid gland. More common in male patients, less than 40 years old are rare, with the most incidence from 50 to 60 years old.
The tumor grows slowly, has a long course of disease, has no symptoms, and often visits with a painless mass. The tumor has clear boundaries and no adhesion to surrounding tissues. Mostly round or oval, the texture is soft.
Parotid gland angiography is a space-occupying lesion of benign tumors.
Diagnosis
Differential diagnosis
Need to be differentiated from polyadenomas, adenoid cystic carcinoma.
Adenocarcinoma is a malignant tumor of the parotid epithelium with different structures but no residual pleomorphic adenoma. Adenocarcinoma mainly occurs in the parotid gland and the parotid gland, which is more common in middle-aged and elderly patients.
Adenoid cystic carcinoma has been called "cylindrical tumor" in the past. According to its histological morphology, it can be divided into adenoid, tubular and solid types. The former is better differentiated and the latter is poorly differentiated. Most common in the small salivary glands and parotid glands, followed by the submandibular glands. Tumors of the sublingual gland, mostly adenoid cystic carcinoma. Tumors tend to spread along the nerves, often with neurological symptoms such as local pain, facial paralysis, numbness of the tongue, or paralysis of the hypoglossal nerve.
