Understanding Esophageal Cancer: Symptoms, Diagnosis, and Treatment Options

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Understanding Esophageal Cancer: Symptoms, Diagnosis, and Treatment Options

Esophageal cancer, also known as food pipe cancer, is a disease that develops in the esophagus, the food pipe or muscular tube that runs from the back of the throat down to the stomach. Although the disease is not as common as some other types of cancer, it can have a devastating impact on the person’s ability to eat, swallow, and maintain proper nutritional status. Early recognition of symptoms and timely diagnosis may help in treatment planning and management. 

This article explains esophageal cancer, its symptoms, diagnosis and treatment options. This article is for informational purposes only and a healthcare professional must be consulted for treatment.

What Is Esophageal Cancer?

Esophageal cancer is a type of cancer that develops in the lining of the esophagus and can grow and spread to other areas of the body. It can be in the form of a tumor and in its worst form can be potentially serious if not treated on time.

The two most common types include:

Adenocarcinoma

Adenocarcinoma is typically found in the lower part of the esophagus, near the stomach. Long-term GERD (gastroesophageal reflux disease) and a condition called Barrett’s esophagus, where the lining of the esophagus has changed due to chronic acid exposure, are common precursors to this type of cancer.

Squamous Cell Carcinoma

This form of cancer occurs in the flat cells of the upper and middle section of the esophagus. Historically, this form of cancer was associated with smoking, heavy drinking, poor diet, and environmental factors.

Since both forms of cancer occur in the esophagus, it is important to receive an accurate diagnosis. Both forms are treated differently, based on the size of the tumor and the stage of development.

Common Symptoms of Esophageal Cancer

In some cases, there are very few or no symptoms at all. However, in most cases where there are symptoms, they can become more apparent as the cancer grows and develops.

Common signs and symptoms include:

• Difficulty swallowing (dysphagia)
• Pain or discomfort while swallowing
• Unexplained weight loss
• Persistent chest discomfort or pressure
• Chronic heartburn or worsening acid reflux
• Hoarseness or a persistent cough
• Indigestion that does not improve
• Fatigue and weakness
• Loss of appetite

These symptoms can be caused by other non-cancerous conditions. It is best to discuss any persistent or worsening symptoms with a healthcare provider.

Risk Factors

Presence of risk factors does not mean necessarily development of cancer disease.

Common risk factors include:

• Long-standing acid reflux disease
• Barrett’s esophagus
• Tobacco smoking
• Heavy alcohol consumption
• Obesity
• Older age
• Male sex
• Diets low in fruits and vegetables
• Previous radiation treatment to the chest or upper abdomen.

Understanding the risk factors for esophageal cancer may enable individuals to have appropriate screening or assessment should they develop relevant symptoms, and have them checked by their healthcare provider.

How Is Esophageal Cancer Diagnosed?

Upper Endoscopy

An upper endoscopy is a test that looks at the esophagus. It uses a thin flexible tube with a camera on the end, which is passed through the mouth to look at the lining of the esophagus for any abnormal areas.

Biopsy

During the endoscopy examination, if any suspicious areas are found, a biopsy can be taken in order to check for cancer cells. A biopsy can determine the exact type of cancer and can also establish whether the cancer is of an early or advanced stage.

Imaging Tests

Imaging tests are conducted to find out if cancer has spread to other parts of the body.

These may include:

• Computed tomography (CT) scan
• Positron emission tomography (PET) scan
• Endoscopic ultrasound (EUS)
• Magnetic resonance imaging (MRI) in selected situations

These tests help identify the size of the tumor, involvement of nearby lymph nodes, and extent of spread to distant parts of the body.

Staging of Esophageal Cancer

After a patient has been diagnosed with cancer, the doctors try to find out how far the disease has progressed. This is called the stage of the cancer.

In general:

• Stage I: Cancer is limited to the mucosa, submucosa, or intramural esophagus.
• Stage II: Cancer has grown further into the wall of the esophagus and possibly into neighboring lymph nodes.
• Stage III: Invasive cancer. Cancer has extended to adjacent structures and/or to multiple lymph nodes.
• Stage IV: Cancer has spread to distant organs, such as the liver or lungs.

Accurate staging allows a multidisciplinary team of healthcare providers to choose the appropriate treatment option. 

Esophageal Cancer Treatment Options

The choice of esophageal cancer treatment is dependent on the Stage, the location of the primary and secondary tumors, and the general health of the patient. Treatment of Esophageal Cancer is given by a multidisciplinary team of health care providers, including surgeons, medical oncologists, radiation oncologists, gastroenterologists, radiologists, pathologists, nutritionists, and others who provide supportive care to the patient and family.

Surgery

Surgery is used for early stage cancers and for localized cancers. This means that the cancer is diagnosed at an earlier stage and has not spread to other parts of the body. An esophagectomy (surgical removal of part or all of the esophagus) is the most common type of surgery and is followed by a reconstruction of the remaining digestive tract to allow for eating and swallowing.

Radiation Therapy

Radiation may be used before or after chemotherapy to destroy cancer cells. 

• Before surgery to shrink tumors
• After surgery in selected cases
• Alongside chemotherapy
• To relieve symptoms in advanced disease

Modern radiation techniques are designed to minimize exposure to surrounding healthy tissues.

Chemotherapy

Chemotherapy is the use of medication which travels through the blood stream to destroy rapidly dividing cancer cells. 

Chemotherapy may be given:

• Before surgery (neoadjuvant therapy)
• After surgery (adjuvant therapy)
• Along with radiation therapy
• As the primary treatment for advanced or metastatic disease

Treatment is given on particular days and in cycles, depending on the exact drugs used and the patient’s circumstances.

Targeted Therapy

Some forms of esophageal cancer are molecularly different and may be treated with a variety of targeted therapies. Prior to administration of these therapies, the cancer can be tested in the laboratory for specific biomarkers that would determine whether the patient would benefit from any of the targeted therapies. Note that not every patient will be a candidate for the same targeted therapy. These decisions are based on the individual characteristics of the cancer.

Immunotherapy

Immunotherapy can be used to treat advanced or metastatic esophageal cancer. These medicines work with the immune system to help it recognize and attack cancer cells. Immunotherapy may be given to some patients with advanced or metastatic esophageal cancer, and whether or not a patient is eligible for such treatment depends on a number of factors, including biomarker testing and the clinical setting. Research is ongoing to evaluate the incorporation of immunotherapy in different stages of treatment for patients with esophageal cancer.

Supportive and Palliative Care

Supportive care and symptom control are important during treatment of patients with esophageal cancer.

Supportive measures may include:

• Nutritional counseling
• Swallowing support
• Pain management
• Psychological support
• Management of treatment-related side effects

Palliative care is provided in conjunction with cancer treatment and can be initiated at the time of cancer diagnosis.

Living With Esophageal Cancer

Being diagnosed with esophageal cancer can affect both body and mind. Patients may experience difficulty eating, weight loss, and treatment-related challenges.

Helpful strategies may include:

• Following dietary recommendations from healthcare professionals
• Eating smaller, more frequent meals if swallowing is difficult
• Staying physically active as per tolerance level
• Attending regular follow-up appointments
• Seeking emotional support from family, counselors, or support groups
• Reporting new or worsening symptoms promptly

Follow-up is also required in the long term after treatment to check on recovery, to treat any side effects and to check for any signs of recurrence.

Advances in Research

More recently, clinical studies have evaluated newer chemotherapy, immunotherapy, and even more targeted therapies.

• New combinations of chemotherapy and immunotherapy
• Improved targeted therapies
• Personalized treatment approaches based on tumor genetics
• Earlier detection strategies
• Less invasive surgical techniques
• Better supportive care interventions

Some individuals with esophageal cancer may have the opportunity to participate in clinical trials that are investigating a variety of new cancer treatments.

Final Thoughts

There are many reasons why timely and individualized diagnosis and treatment of complex disease like esophageal cancer is so important. Early recognition of its symptoms, proper diagnosis, and information on corresponding types of esophageal cancer and their treatment options can facilitate proper decisions of affected people and their doctors.

No two patients are alike, and so treatment recommendations need to be based on a thorough assessment by a qualified medical professional and drawn from the range of possible treatments which include surgery, chemotherapy, radiation therapy, as well as the emerging areas of targeted therapy, immunotherapy and supportive care. The information provided in this article is intended for educational purposes only and should not be interpreted as medical advice, a clinical guideline, or a recommendation for any specific treatment.