How to distinguish between throat cancer and pharyngitis.

Written by Li Rui
Otolaryngology
Updated on May 06, 2025
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Laryngeal cancer and pharyngitis are fundamentally different. First, there is the specific nature of the lesions: laryngeal cancer is a type of malignant tumor in the pharyngeal and laryngeal areas, posing significant health risks; whereas pharyngitis is a common clinical symptom in the pharyngeal and laryngeal areas, mainly caused by inflammatory reactions, and may involve sensations of a foreign body in the throat, pain, and burning, but overall, it poses less risk to health. Additionally, the specific sites of disease onset differ. The lesions in laryngeal cancer primarily occur in the vocal cord area, with some in the supraglottic or subglottic areas, where new growths might be found, which can be identified through pathological biopsy. In contrast, pharyngitis primarily involves chronic congestion and inflammatory reactions of the mucous membranes in the pharyngeal area, with no direct new growth, which can be directly diagnosed and differentiated through pathological biopsy.

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Written by Li Rui
Otolaryngology
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"What does it mean when throat cancer discharges pus?"

Throat cancer is a relatively common otolaryngology disease with numerous clinical symptoms, the most common being sore throat and a sensation of a foreign body in the throat. Some patients may experience hoarseness and difficulty breathing. If there is pus discharge, this situation might be considered to be associated with a bacterial infection, potentially due to the condition of the throat cancer itself that then leads to a localized bacterial infection and abscess. In such cases, treatment initially involves using antibiotics to combat the infection. After controlling the acute inflammation, most patients need to consider surgical treatment. Depending on the clinical stage and type of the patient, radiotherapy or chemotherapy might also be considered after surgery. After the treatment is completed, regular follow-ups are necessary to monitor the treatment results.

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Written by Li Rui
Otolaryngology
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Does throat cancer infect others?

Throat cancer generally is not contagious. Currently, the most accurate and fundamental etiology of throat cancer is not particularly clear. It may be related to genetic factors or issues with genes, or it could be due to long-term lifestyle habits, such as smoking, drinking alcohol, or exposure to irritating radioactive substances. Overall, from existing medical treatments and research, there is no evidence found of definite contagiousness. Thus, it is not considered an infectious disease, and excessive isolation is not necessary. Regarding treatment, it is primarily surgical-based at the moment, with some patients requiring a combination of radiotherapy or chemotherapy as comprehensive treatment methods. Also, long-term regular follow-ups are needed to monitor the recovery process.

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Written by Li Rui
Otolaryngology
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Early symptoms of throat cancer

Laryngeal cancer is a relatively common type of malignant tumor in the head and neck region. In terms of clinical symptoms, if it is early-stage laryngeal cancer, there may not be obvious clinical manifestations. This condition is usually discovered during physical examinations or laryngoscopic examinations. Some patients may experience hoarseness, sore throat, a foreign body sensation in the throat, or possibly swallowing obstruction and difficulty breathing. Once these symptoms appear, a laryngoscopic examination is necessary. Generally, the scope of the condition can be preliminarily judged through laryngoscopic examination, and surgical treatment or radiation therapy can typically be considered.

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Written by Xu Qing Tian
Otolaryngology
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The difference between laryngeal cancer and pharyngeal cancer

The main difference between laryngeal cancer and pharyngeal cancer lies in the different parts they affect. Laryngeal cancer occurs below the level of the epiglottis, while pharyngeal cancer generally occurs above this level, including tumors in the pharynx, tonsils, and base of the tongue, whereas laryngeal cancer primarily involves the vocal cords and the lower pharynx. For the diagnosis and treatment of pharyngeal and laryngeal cancers, we can use nasoendoscopy, paranasal sinus CT scan, and CT scan of the larynx among other examinations to make a clear diagnosis, and a pathological biopsy for final confirmation. Once diagnosed, it is usually necessary to surgically remove the tumor promptly to achieve a cure.

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Written by Deng Bang Yu
Otolaryngology
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Common sites of laryngeal cancer

Laryngeal cancer is a malignant tumor in the larynx, and clinically, it is primarily squamous cell carcinoma. There are several types of laryngeal cancer: firstly, glottic cancer; secondly, supraglottic cancer; there is also subglottic cancer, and transglottic cancer that spans two regions. Among these types, glottic cancer is the most common. Early-stage glottic cancer is generally detected earlier due to hoarseness, and the outcomes after surgery are relatively better. Consequently, the most frequently diagnosed site of this disease is the vocal cords. After surgery, regular follow-up appointments are necessary to monitor and observe the healing process post-operation.