TürkçeSquamous cell carcinoma of the lung is one of the types of non-small cell lung cancer (NSCLC) and usually develops from the cells lining the inner surface of the bronchi. It is most commonly seen in smokers, and the tumor is generally located in the central regions, close to the major bronchi.
This type of cancer generally tends to grow slowly but may not cause symptoms in the early stages. In advanced stages, it may lead to symptoms such as cough, blood in the sputum, chest pain, and shortness of breath. Diagnosis is made through imaging methods and biopsy.
The choice of treatment varies according to the stage of the disease. Surgery is the primary option in the early stage, while chemotherapy, radiotherapy, and systemic treatments such as immunotherapy are used in advanced stages for suitable patients. The biological characteristics of the tumor may influence the treatment plan.
The response of squamous cell carcinoma to treatment may differ from other NSCLC types, such as adenocarcinoma. Therefore, it is important to adopt an individualized approach for each patient. Regular follow-up and lifestyle changes positively affect the course of the disease.
What Does Squamous Cell Carcinoma Mean?
Squamous cell carcinoma is a type of cancer that develops from squamous (flat) cells. These cells normally line the inner surface of the respiratory tract and are found particularly around the major bronchi in the lungs. Over time, changes in the structure of these cells may lead to uncontrolled growth, resulting in squamous cell carcinoma.
Lung cancers are generally classified into two main groups: small cell and non-small cell. Squamous cell carcinoma is included among non-small cell lung cancers. This information is important in terms of how the disease will be evaluated and which approaches may be considered.
Why Does It Develop in the Lung?
The most frequently emphasized risk factor associated with this type of cancer is smoking. Long-term exposure to tobacco smoke may cause damage to the cells of the respiratory tract. However, it cannot be definitively stated that every smoker will develop this disease or that it cannot occur in someone who has never smoked.
Apart from smoking;
- Long-term exposure to secondhand smoke
- Certain occupational chemicals
- Air pollution
- Previous lung diseases
are also associated with an increased risk. Nevertheless, a clear cause-and-effect relationship may not be established in every patient.
How Do the Symptoms Appear?
The symptoms of squamous cell carcinoma of the lung generally begin insidiously. Mild complaints may occur in the early stages, and this situation may often be confused with the fatigue of daily life or a simple respiratory tract infection.
The complaints reported by patients may include:
- A persistent or progressively worsening cough
- A feeling of shortness of breath
- Pressure or pain in the chest
- Blood in the sputum
- Unexplained weight loss and fatigue
These symptoms are not specific to this disease alone. Since similar complaints may also occur in different respiratory diseases, a definitive evaluation must always be performed by a specialist physician.
How Does the Diagnostic Process Progress?
The diagnostic stage is a period of intense uncertainty and anxiety for many patients. The first step is generally imaging studies performed because of the symptoms. A chest X-ray or computed tomography scan may reveal the presence of a suspicious area in the lung.
This may be followed by;
- Bronchoscopy
- Biopsy
- Pathological examination
as advanced evaluations. The diagnosis of squamous cell carcinoma is made by examining the cells under a microscope. At this point, the concept of a “definitive diagnosis,” which patients frequently wonder about, is based on the pathology result, and the process may progress differently for each individual.
What Does Disease Staging Indicate?
The staging performed after diagnosis helps determine the extent of the disease within the lung and its relationship with other tissues. Staging is based on criteria such as the size of the tumor, the extent of spread to the lymph nodes, and whether there is involvement of distant organs.
This evaluation forms the basis of individualized planning. However, staging information alone does not provide a complete roadmap; the person’s general health status, additional diseases, and expectations are also taken into consideration.
Within What Framework Are Treatment Approaches Considered?
The treatment pathway for squamous cell carcinoma of the lung is not the same for everyone. Options such as surgery, drug therapies, and radiation therapy are evaluated by physicians according to the stage of the disease and the individual characteristics of the patient.
The important point here is that no single approach is considered appropriate for everyone. Treatment decisions are made by multidisciplinary teams together with the patient. During this process, it is important for patients to ask questions and share their expectations and concerns.
How Is the Process Experienced from the Patient’s Perspective?
For individuals diagnosed with this condition, not only the physical burden but also the emotional burden comes to the forefront. Uncertainty, anxiety about the future, and the impact on daily life are among the most commonly expressed concerns. While some patients actively seek extensive information during the diagnostic process, simpler and step-by-step information may be more reassuring for others.
Support systems, regular physician consultations, and psychosocial support when needed may help make this process more manageable.
When Is a Specialist’s Opinion Essential?
Persistent respiratory complaints, especially in individuals with risk factors, should always be taken seriously. Evaluations performed in the early stages help both clarify the diagnostic process and allow treatment options to be discussed more effectively.
Squamous cell carcinoma of the lung is a complex disease that requires an individualized evaluation. Therefore, information obtained from the internet should not be considered sufficient on its own and should always be evaluated together with the opinion of a specialist physician.
Frequently Asked Questions
Squamous cell carcinoma of the lung is a subtype of non-small cell lung cancer. It usually develops from the cells lining the inner surface of the airways, and the diagnostic and treatment process is planned according to the stage and spread of the tumor.
The most important risk factor is smoking. In addition, exposure to secondhand smoke, long-term exposure to harmful chemicals, air pollution, and certain occupational factors may also increase the risk of developing the disease.
A persistent cough, bloody sputum, chest pain, shortness of breath, hoarseness, and unintentional weight loss may occur. Since it may not cause symptoms in the early stage, regular check-ups are important for individuals in the risk group.
Chest X-rays, computed tomography, PET-CT, bronchoscopy, and biopsy are used for diagnosis. Pathological examination confirms the type of tumor and helps establish the treatment plan.
Treatment is determined according to the stage of the tumor, its extent, and the patient’s general health condition. Surgery, chemotherapy, radiotherapy, immunotherapy, and targeted therapies for suitable patients may be used alone or in combination.
Surgery may be preferred in patients whose tumor is confined to the lung and who have no serious health problems preventing surgery. Surgical suitability is determined after a detailed evaluation by a multidisciplinary team.
In advanced stages, the disease may spread to the lymph nodes and distant organs such as the bones, liver, and brain. Early diagnosis and appropriate treatment are of great importance in reducing the risk of spread and controlling the disease.
Post-treatment follow-up is performed to evaluate the response to treatment and detect possible recurrence at an early stage. During the follow-up period, physical examinations, imaging methods, and necessary laboratory tests may be performed.
Completely quitting smoking, maintaining a balanced diet, engaging in regular physical activity, attending scheduled medical check-ups, and adhering to the treatment plan may support overall health and positively contribute to the treatment process.
Treatment options are broader and the likelihood of achieving successful outcomes is higher when squamous cell carcinoma is diagnosed at an early stage. Regular check-ups and reducing risk factors are important steps that support early diagnosis.
Prof. Dr. Alper Fındıkcıoğlu graduated from Istanbul University Faculty of Medicine and completed his thoracic surgery residency at Dr. Siyami Ersek Hospital. He began his academic career at Başkent University in 2005; he received the title of associate professor in 2014 and professor in 2022. He has extensive experience in lung cancer, chest wall diseases, and minimally invasive surgery. Since 2024, he has been continuing his professional work at Acıbadem Hospital.
