TürkçeCommon misconceptions about lung cancer are a dangerous pollution of information that delays the diagnosis of the disease, causes modern treatment options to be rejected, and is based entirely on unscientific superstitions. These unfounded fears spreading by word of mouth in society create an invisible barrier that prevents the innovative solutions and life-saving interventions offered by the medical world from reaching the patient. When it comes to a cancer diagnosis, believing in myths that are not evidence-based paves the way for losing the vital chance of early diagnosis. Focusing on current oncological and surgical realities instead of deep-rooted prejudices in society in health processes is the most fundamental step that protects patients’ healing potential and increases the success rate.
Are Only Smokers at Risk of Lung Cancer?
One of the most common and perhaps most misleading thoughts in society is the belief that people who do not use tobacco products are completely exempt from lung cancer. Tobacco use is undoubtedly the number one trigger of this disease. Thousands of toxic chemicals in cigarette smoke disrupt the natural structure of the cells lining the respiratory tract, causing them to multiply uncontrollably over time. However, when statistical data and clinical pictures are examined, a significant group of patients who have never smoked even a single cigarette in their lives is encountered. This clearly shows how great a risk it is to ignore symptoms by saying, “I do not smoke, therefore I cannot have lung cancer.”
The main environmental factors that trigger lung cancer besides smoking are:
- Radon gas
- Asbestos
- Air pollution
- Passive smoking
- Genetic predisposition
Going into the details of these factors is important for understanding the extent of the risk. For example, radon gas is a radioactive substance naturally found in underground soil and rocks, invisible to the eye and odorless. It accumulates especially in poorly ventilated homes located on ground floors or basement floors, enters the body through breathing, and leaves permanent damage in cellular DNA. Another important danger, asbestos, is a substance used in old building insulation or known as “white soil” in rural areas and used in plastering. Asbestos fibers lodge in the lung membrane and can initiate the cancerization process even decades later. Moreover, if a person both smokes and is exposed to such environmental toxins, the disease risk does not increase by simple addition but multiplies. In addition, exposure to the smoke of cigarettes smoked by others, that is, passive smoking, can initiate the destructive effect on cells by itself.
Does Lung Cancer Occur Only at Advanced Ages?
Aging is generally a factor that increases cancer risk because, as years pass, cells’ ability to repair themselves decreases and genetic errors begin to accumulate. However, the idea that lung cancer is a disease specific only to old age is one of the biggest causes of delays in diagnosis. The disease can also occur very aggressively in individuals in their twenties or thirties. Especially some cancer subtypes that develop in the outer edges of the lung and are not directly related to tobacco use can target young and apparently healthy individuals.
Some symptoms that young patients often mistake for asthma or stress and ignore are:
- Persistent cough
- Shortness of breath
- Chest pain
- Fatigue
- Weight loss
Young individuals generally tend to attribute such complaints to a busy work schedule, seasonal infections, or psychological stress. A cough that lasts for weeks and does not go away is attempted to be dismissed with a simple cold syrup. The stabbing sensation in the chest area is not taken seriously, being assumed to be muscle pain. However, cellular abnormalities do not recognize age. The age factor should never be an excuse to avoid detailed screening or examination. Although tumors that appear at an early age tend to grow faster biologically, young patients’ organ capacities and response to treatment are generally much stronger. Therefore, it is vital that persistent complaints are definitely taken into account and evaluated by a chest diseases or thoracic surgery specialist.
Do Electronic Cigarettes or Hookah Reduce the Risk of Lung Cancer?
Today, with the transformation of the tobacco industry, new-generation habits are rapidly spreading especially among young and middle-aged individuals. The number of people turning to electronic cigarettes, heated tobacco products, or hookah in order to quit traditional cigarettes or “suffer less harm” is quite high. The fact that these products work on the principle of vaporization instead of burning or contain pleasant-smelling aromas creates a massive illusion that makes them appear completely harmless.
However, the biological truth of the matter is completely different from this perception. The vapor produced when the liquids inside electronic cigarettes are exposed to high heat is a dense chemical cloud that reaches the air sacs (alveoli) at the very end points of the respiratory tract. This cloud contains heavy metals and carcinogenic substances that are also found in regular cigarettes and directly disrupt the structure of cells. Similarly, hookah use sends enormous amounts of carbon monoxide and toxic substances to the lungs due to the burning of the charcoal inside and the need to take long, deep breaths. The defense of pipe or cigar smokers that “we do not inhale the smoke” is another misconception; these products are the main actors of deadly changes that can start in the lips, tongue, pharynx, and larynx region and spread to the lungs. In short, no form in which tobacco, nicotine, or chemical vapor is drawn into the lungs is innocent, and all are serious steps on the path leading to lung cancer.
Does Having a Biopsy Cause Lung Cancer Cells to Spread?
When the presence of a suspicious mass is detected, the most critical stage of the diagnostic process is biopsy. However, at this point, a massive fear awakens in patients’ minds. Scenarios with no medical validity, such as inserting a needle will anger the tumor, cancerous cells will mix into the blood and spread throughout the body, or the tumor will get air and grow rapidly, cause treatment to be delayed for weeks or even months.
Some modern lung cancer treatment methods determined according to the biopsy result are as follows:
- Surgery
- Chemotherapy
- Radiotherapy
- Immunotherapy
- Smart drugs
When scientific facts are considered, it is impossible for modern biopsy procedures performed with closed systems to change the course of cancer or cause it to spread. Today, biopsy procedures are performed under the guidance of advanced imaging methods such as computed tomography or ultrasound, with the target determined millimetrically. The special structure of the needles used traps the piece inside a protective sheath after removing it and does not contaminate any cells into the healthy tissues it passes through while coming out. Without a biopsy, it is not possible to understand whether that mass is truly cancer. More importantly, that tissue is needed to decode the genetic code of the cancer cells. That tiny piece taken is examined in a laboratory environment and provides very valuable information about which subtype the disease belongs to and which smart drugs or immune treatments will work. Avoiding this procedure is like trying to find your way by touch in a dark room; it seriously reduces the chance of treatment success.
Is Every Lesion That Lights Up on a PET-CT Scan Lung Cancer?
Positron Emission Tomography, known among the public as PET-CT, is a very powerful imaging tool used in cancer staging. The basic logic of this device is to measure the speed at which cells consume sugar (glucose). Since cancer cells divide and multiply much faster than normal cells, they need excessive amounts of energy, in other words sugar. Sugar labeled with a very low dose of radioactive substance given to the patient intravenously collects in these cells that consume the most energy in the body and appears as a bright spot on the computer screen. This has led to the emergence of the extremely wrong belief that “everything that lights up is definitely cancer.”
Some conditions that can mimic cancer and cause lighting up on PET-CT images are:
- Active infections
- Tuberculosis
- Abscesses
- Sarcoidosis
- Rheumatic inflammations
A simple pneumonia area in the lungs can consume excessive sugar just like a tumor due to the intense work of the fighter cells sent by the body to that area and can appear very bright on the PET-CT screen. Traces left by a past and inactive tuberculosis disease or diseases such as sarcoidosis that affect the body’s immune system can perfectly mimic cancer in these scans. The opposite scenario is also possible; some lung cancer types with very slow metabolism and an insidious, lazy character can hide for years without showing any lighting up on PET-CT. Therefore, this imaging method is not a definitive diagnostic tool on its own, but only an advanced map that marks suspicious areas. The definitive result is always obtained by examination of the tissue under a microscope by pathology specialists.
If a Knife Touches the Cancer During Surgery, Does Lung Cancer Spread Rapidly?
Now we come to the most deep-rooted and biggest psychological barrier in front of surgical treatment: the myth of “a knife touching the cancer.” This hearsay information passed down from the past to the present takes away the chance of recovery from many patients. The source of this false belief is actually the medical impossibilities of a hundred years ago. In times when imaging devices did not exist, the mass in the patient’s lung would be seen on X-ray and the patient would be taken to surgery. However, when the chest cavity was opened during surgery, it would be seen that the disease had actually spread to the liver, bones, or heart, and the surgery would be terminated at that point. When the patient lost his life shortly afterward, people outside interpreted the situation as, “He lay on the operating table, the tumor was touched with a knife, and the disease suddenly spread throughout his body and killed him.”
In today’s practice, however, the situation has completely changed. Thanks to millimetric scans performed before surgery, the surgeon begins the operation knowing one hundred percent where the tumor is, how intertwined it is with the vessels, and whether it has spread to the lymph nodes. Moreover, in modern surgical techniques, there is not even such a concept as “a knife touching” the tumor itself. Lung cancer surgeries are based on the principle of “en-bloc” removal. To understand this, think of a rotten apple. The surgeon does not try to carve out the rotten part inside the apple with a knife, because this may cause the rot to spread around. Instead, that apple is cut and removed in one piece together with its branch and the leaves around it. In lung surgery, the lung lobe containing the tumor, a wide strip of healthy tissue around it, and the lymph nodes that are possible routes of spread are removed as a closed package, without disrupting their integrity at all. It is anatomically and technically impossible for cancerous cells to scatter around. The proven most effective way to completely scrape the disease out of the body and offer the patient a true cure is to remove that mass surgically. Avoiding surgery means waiting for the tumor to spread to the internal organs and reach an untreatable stage.
Is It Always Necessary to Open the Chest Cavity for Lung Cancer Surgeries?
In past years, when lung surgeries were mentioned, huge incisions extending from the back to the chest, ribs separated from each other with metal instruments, and unbearable pain lasting for weeks after surgery came to mind. Fear of this difficult process is another factor that keeps many patients away from treatment. However, revolutionary developments in medical technology are largely putting this classic and exhausting open surgery (thoracotomy) method on the dusty shelves of history. Now, in suitable cases, the gold standard is closed, that is, minimally invasive surgical methods performed without the need to spread the ribs.
The reasons for preferring closed methods (VATS and Robotic) instead of traditional open surgery are:
- Less pain
- Small incision
- Rapid recovery
- Low infection risk
- Early discharge
The first of these methods is known as Video-Assisted Thoracoscopic Surgery (VATS). Today, in the “Single Port” approach, which is the most advanced stage of this method, only a single incision of two to three centimeters is made in the chest cavity. Through this tiny hole, a camera that projects the inside of the lung onto large screens in three-dimensional and high-resolution form and specially designed thin surgical instruments are placed inside.
One step beyond this is Robotic Surgery (da Vinci) technology, which is no less than science fiction movies. In this system, the surgeon sits at a console next to the patient and watches the images in a three-dimensional environment magnified fifteen times. The surgeon’s finger movements are instantly and flawlessly transferred to the robotic arms inside the patient’s chest cavity. These robotic arms, which completely eliminate the natural tremor of the human hand, can perform maneuvers that the human wrist cannot and rotate 540 degrees. In this way, even lymph nodes hidden around the large vessels right next to the heart can be cleaned with zero margin of error. Since the patient’s ribs are not forced, back muscles are not cut, and pressure is not placed on nerves, the postoperative recovery period is extremely comfortable. One of the greatest benefits of closed methods is that they do not subject the patient’s immune system to major surgical trauma. The patient whose immune system remains strong can start protective treatments after surgery much more vigorously if necessary.
Can Patients Diagnosed with Early-Stage Lung Cancer Recover Completely?
The thought that lung cancer is a “fatal and never defeatable” disease is the greatest misconception that steals people’s hope. The course of the disease shows tremendous differences depending on the stage at which the mass is diagnosed. With the development of screening programs and people becoming more aware of symptoms, the disease can often be detected while it is still a small nodule within the lung tissue (Stage 1), before it has spread anywhere.
When the disease is detected at an early stage and the tumor is completely cleaned with surgical methods together with the surrounding lymph nodes, the probability of patients being completely free of this disease is very high. In early-stage patients treated with modern oncology and surgical principles, it is possible for them to continue their lives only with regular check-ups after surgery, without any need for additional treatment (chemotherapy or radiotherapy). Even if the disease has spread to regional lymph nodes, today, with the integration of targeted smart drugs and immunotherapy methods that train the immune system in addition to surgery, rates of achieving complete cure have increased to an incomparable degree compared to past years. At this point, the biggest duty of the patient is to trust the guidance of science and specialist physicians instead of losing time by giving in to unfounded fears.
Is It Possible to Return to a Normal and Active Life After Lung Cancer Surgery?
The biggest question mark in patients’ minds after surgery is whether they will spend the rest of their lives as “disabled” people who are bound to a bed or oxygen cylinder and constantly suffer from shortness of breath. The idea of removing one lobe of the lung or, in rarer cases, the entire lung is naturally frightening when first heard. People think that lung capacity will suddenly drop by half and that they will never be able to climb stairs again. However, human anatomy has an enormous ability to adapt (compensation).
Some factors that accelerate the patient’s recovery process after a successful lung cancer surgery are:
- Early movement
- Breathing exercises
- Pain control
- Healthy nutrition
- Morale
Especially patients operated on with closed surgical methods get up with the help of nurses the morning immediately after the operation and begin walking in the hospital corridors. Walking allows the remaining healthy lung tissue to expand rapidly, increases the amount of oxygen taken in, and reduces risks such as clot embolism to zero. Drainage tubes placed in the chest cavity to remove fluids accumulated in the surgical area and possible air leaks are usually removed within a few days as the body recovers, and the patient is discharged home. After discharge, simple breathing exercises taught to the patient, such as triflo (breathing ball), increase the capacity of the remaining lung day by day. The function of the removed diseased tissue is taken over by healthy tissues over time. When the recovery process is completed, patients can walk on their own, drive, handle their daily tasks, and even do light-paced sports. Getting rid of the psychological burden created by the name of the disease and trusting the correct surgical steps taken in the light of science is the most important part of the ticket back to healthy days.
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.
