2024-03-08 07:53:06
Doctors explained that long-term ear picking irritates the epidermis of the external auditory canal, causing skin exudation. This vicious cycle causes new organisms to grow in the ear canal, inducing external auditory canal cancer. (Schematic diagram/PIXABAY)
A man in his 50s from Mainland China, surnamed Zhou, likes to pick up ear picks and pick out his ears. This habit has lasted for nearly 10 years. It was not until recently that he had to seek medical treatment for left ear pain and ear pus. Only then did he discover that he had cancer. Fortunately, following Surgical resection, combined with radiotherapy and chemotherapy, resulted in a good recovery. Doctors explained that long-term ear picking irritates the epidermis of the external auditory canal, causing skin exudation. This vicious cycle causes new organisms to grow in the ear canal, inducing external auditory canal cancer.
According to the Chinese media “China News Network”, Zhang Hongzheng, director of the Otolaryngology and Head and Neck Surgery Center of Zhujiang Hospital of Southern Medical University, said that external auditory canal cancer is a rare malignant tumor, accounting for regarding 0.2% of head and neck tumors, and the overall incidence rate is regarding 1 /1 million people. It is a rare disease and is easily missed. When diagnosed, it is often in a locally advanced stage.
He mentioned that the clinical manifestations of external auditory canal cancer are atypical. In the early stage, it is easy to be misdiagnosed as otitis externa or otitis media. The main clinical manifestations are ear discharge, ear pain, hearing loss, tinnitus, ear fullness, dizziness and other symptoms; in the late stage, due to the expansion of the scope of invasion, Symptoms of corresponding facial nerve and posterior cranial nerve paralysis may occur, such as facial nerve paralysis, hoarseness, coughing when drinking water, difficulty swallowing, etc. Infringement of the temporomandibular joint may cause limited mouth opening.
Zhang Hongzheng pointed out that the diagnosis of external auditory canal cancer depends on pathology, and related examinations such as audiology, temporal bone CT, temporal bone neck enhanced MRI, and lung CT are also required. When the tumor involves large blood vessels, MRA, MRV, and PET-CT are also required. Can help determine whether distant metastasis occurs.
Zhang Hongzheng further pointed out that external auditory canal cancer is more common in adults aged 40 to 60 years old and is related to a variety of high-risk factors, including repeated epithelial stimulation, such as habitual ear picking, long-term chronic suppurative otitis media, and otitis externa. The risk of external auditory canal cancer; in addition, among Asians, head and neck radiotherapy is an important predisposing factor for squamous cell carcinoma of the external auditory canal. In patients with nasopharyngeal cancer who have undergone radiotherapy, the incidence of squamous cell carcinoma of the external auditory canal is regarding 0.15%. 1000 times higher than healthy people.
Zhang Hongzheng said that external auditory canal cancer is mainly divided into squamous cell carcinoma, adenoid cystic carcinoma, and basal cell carcinoma; squamous cell carcinoma is the most common, accounting for 40% to 60%, is highly invasive and has the worst prognosis; adenoid cyst Sexual cancer accounts for regarding 40%. Although it grows slowly, it is prone to recurrence and distant metastasis. Basal cell carcinoma accounts for 5% to 10%, and the effect following surgery is better than other pathological types.
Zhang Hongzheng explained that the treatment of external auditory canal cancer is mainly surgical resection, and targeted therapy and immunotherapy can also be used as good supplements; the prognosis of external auditory canal cancer is generally related to the stage and pathological type. The prognosis of early-stage external auditory canal cancer following surgical resection is poor. Well, the 5-year survival rate can reach 90%-100%, and only 35.8%-72.5% in the late stage. Therefore, maintain good living habits, try to avoid risk factors for external auditory canal cancer, and seek medical treatment promptly when you have related symptoms to achieve early detection and Early diagnosis and early treatment.
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