papillary cystadenoma

Introduction

Introduction to papillary cystadenoma Papillary cystadenoma (papillarycystadenoma) is a benign epithelial tumor of the parotid gland. Parotid papillary cystadenoma occurs in the small parotid gland, which is more common in the ankle. There was no difference in the gender distribution of the patients, and the age of onset was most common in 30 to 50 years old. Patients present with localized masses, slow growth, longer duration, and some can last for decades. Most patients have no symptoms or dysfunction, and a small number of patients may experience pain or bloating. Parotid papillary cystadenoma occurs in the small parotid gland, which is more common in the ankle. There was no difference in the gender distribution of the patients, and the age of onset was most common in 30 to 50 years old. Patients present with localized masses, slow growth, longer duration, and some can last for decades. Most patients have no symptoms and dysfunction. A few patients may experience pain or bloating, and some patients may have ulceration and infection of the tumor. basic knowledge The proportion of sickness: 0.2% Susceptible population: the age of onset is most common in 30 to 50 years old Mode of infection: non-infectious Complications: difficulty swallowing

Cause

The cause of papillary cystadenoma

The number of males is significantly higher than that of females. The cause is unknown and may be related to smoking.

1. It is the parotid gland tissue that exists in the lymph nodes in the parotid duct during embryonic development.

2, due to the development of glandular epithelial hyperplasia and inflammation or immune response.

Prevention

Papillary cystadenoma prevention

Appropriate exercise, enhance physical fitness and improve your disease resistance. It is currently believed that the loss of normal immune surveillance function, the tumorigenic effect of immunosuppressants, the activity of latent viruses and the long-term application of certain physical (such as radiation), chemical (such as anti-epileptic drugs, adrenocortical hormone) substances, Lead to the proliferation of lymphatic network, and eventually malignant lymphoma. Therefore, pay attention to personal and environmental hygiene, avoid drug abuse, and pay attention to personal protection when working in a harmful environment.

Complication

Papillary cystadenoma complications Complications, difficulty swallowing

For benign tumors, there are generally no complications, and a small number of patients may be associated with dry mouth. Dry mouth is not uncommon in the clinic, especially in the elderly. Due to the reduced secretion of saliva, the patient feels that the mouth is dry, has a foreign body sensation, a burning sensation, and when chewing food, especially dry food, can not form a bolus and affect swallowing. The amount of saliva secretion is small, and the scouring effect on the teeth and the oral mucosa is also small, which makes the oral self-cleaning effect worse. Therefore, patients with dry mouth have higher rates of caries. The taste of most patients with xerostomia is also affected, which does not effectively stimulate appetite and affects the function of the entire digestive system.

Symptom

Papillary cystadenoma symptoms Common symptoms Swelling parotid gland painless mass Parotid gland enlargement Parotid swelling

Parotid papillary cystadenoma occurs in the small parotid gland, which is more common in the ankle. There was no difference in the gender distribution of the patients, and the age of onset was most common in 30 to 50 years old. Patients present with localized masses, slow growth, longer duration, and some can last for decades. Most patients have no symptoms and dysfunction. A few patients may experience pain or bloating, and some patients may have ulceration and infection of the tumor.

Examine

Examination of papillary cystadenoma

1. Slow growth, asymptomatic.

2. Appear more in the posterior surface of the parotid gland and lower pole, generally smaller (within 4cm diameter), round or oval, clear boundary, soft texture, activity, no adhesion to surrounding tissue, no tenderness, can have bilateral Onset.

3. Parotid gland angiography showed benign space-occupying lesions in the parotid gland.

4. B-ultrasound shows a smooth reflection image of the boundary, and the internal echo wave distributes the spot evenly.

5. Radioisotope scanning of the lesion showed that the isotope 99 was concentrated in the tumor.

6. Frozen section biopsy confirmed.

Diagnosis

Diagnosis and differentiation of papillary cystadenoma

Identification with pleomorphic adenoma, adenolymphoma:

The clinical manifestations of papillary cystadenoma are similar to those of pleomorphic adenoma, and there is a lack of characteristic manifestations. Therefore, it is often diagnosed as a pleomorphic adenoma in the clinic. Parotid gland angiography may be a benign sign or a benign tumor with local invasiveness. The examination can also be expressed as a "grid-like" structure on the sonogram, which is easily confused with adenolymphoma, but the border echo of the adenolymphoma is clear, while the papillary cystadenoma is more blurred.

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