nasopharyngeal sarcoma
Introduction
Introduction to nasopharyngeal sarcoma Nasopharyngeal sarcoma is far less common than nasopharyngeal carcinoma. According to statistics, the ratio of nasopharyngeal carcinoma to sarcoma in China ranges from 99 to 211:1, and in foreign countries, the ratio varies from 3 to 9:1. A malignant tumor derived from mesenchymal tissue (including connective tissue and muscle) is called a "sarcoma." Hematogenous metastasis can occur early. Sarcoma is a malignant tumor. Such as fibrosarcoma grows rapidly, the tumor often has necrosis, hemorrhage, cut face gray red, uniform quality such as raw fish meat. The most common type of nasopharyngeal sarcoma is malignant lymphoma, which accounts for more than 54% of nasopharyngeal sarcoma. Others may be rhabdomyosarcoma, leiomyosarcoma, malignant fibrous histiocytoma, liposarcoma, fibrosarcoma, vascular endothelioma, melanoma, etc. . Most of them originate from the Waldeyer ring, and a few are localized manifestations of systemic malignancies. basic knowledge The proportion of illness: 0.005% Susceptible people: no specific people Mode of infection: non-infectious Complications: cervical lymph node tuberculosis
Cause
Nasopharyngeal sarcoma
The most common type of nasopharyngeal sarcoma is malignant lymphoma, which accounts for more than 54% of nasopharyngeal sarcoma. Others may be rhabdomyosarcoma, leiomyosarcoma, malignant fibrous histiocytoma, liposarcoma, fibrosarcoma, vascular endothelioma, melanoma, etc. . Most of them originate from the Waldeyer ring, and a few are localized manifestations of systemic malignancies.
Prevention
Nasopharyngeal sarcoma prevention
There is no effective preventive measure for this disease. Early diagnosis and early treatment are the key to the prevention and treatment of this disease. The prognosis of sarcoma depends on its type, treatment, morning and evening, thorough surgery, sensitivity to chemoradiation, and presence or absence of metastasis. Sarcoma is a rare, highly malignant tumor. The general five-year survival rate is less than 20%. 80% of patients have microscopic tumor dissemination and metastasis when the diagnosis is confirmed. The most common metastatic site is the lung.
Complication
Nasopharyngeal sarcoma complications Complications, cervical lymph node tuberculosis
There is bleeding neck lymph node metastasis or distant metastasis, and finally diemick and die.
Symptom
Symptoms of nasopharyngeal sarcoma Common symptoms Nasal bone destruction Destruction of distant metastatic eustachian tube
Nasopharyngeal sarcoma has the characteristics of rapid growth, late metastasis, and small age of onset. The initial symptoms are similar to those caused by hypertrophy and hypertrophy, which may cause symptoms such as nasal congestion and eustachian tube blockage. Transfer or distant metastasis, and finally diemick and die .
Examine
Nasopharyngeal sarcoma examination
X-ray examination, CT scan, MRI (magnetic resonance imaging), bone scan can be used to make a preliminary diagnosis of various sarcomas, and if necessary, a puncture and tissue biopsy should be performed to confirm the diagnosis.
Diagnosis
Diagnosis and diagnosis of nasopharyngeal sarcoma
The diagnosis of nasopharyngeal sarcoma is mainly based on medical history, clinical manifestations and nasopharyngoscopy, and finally diagnosed by biopsy. Nasopharyngeal sarcoma rarely causes bone destruction of the skull base. The rate of cervical lymph node metastasis of lymphosarcoma is very high. Lymphatic metastasis, soft texture, can affect the various groups of deep cervical lymph nodes.
The disease should be differentiated from posterior nostril polyps, nasopharyngeal lymphosarcoma, nasopharyngeal angiofibroma.
