Thymoma: Causes, Symptoms, and Treatment

Thymoma is the term used to describe cancer of the thymus gland, which is situated in the upper chest above the heart and below the breastbone. The thymus gland is a crucial component of the lymphatic system and aids in the maturation of T-lymphocytes, a type of white blood cell that directly attacks foreign microorganisms and fights infections.

Furthermore, Immature lymphocytes from the bone marrow enter the thymus gland to mature, making it an important part of the body’s immune system.

What are the Signs and Symptoms of Thymoma?

Initially, it does not show any symptoms, and it might be diagnosed on any routine test, such as an X-ray, CT scan, or MRI, for any other disease. As the tumor size increases, it exerts pressure on nearby organs, and the patient becomes symptomatic with the following symptoms.

 Uncontrolled Coughing:

The patient will be presented with coughing, not settling with medication, as the tumor exerts pressure on the trachea and lungs. Coughing worsens if patients lie down, and most of the patients cannot even sleep due to severe coughing.

Pressure on Chest/ Tightness:

An enlarged tumor exerts pressure on the trachea, lungs, and chest cavity, and the patient may feel chest tightness.

Weight Loss: Thymoma ( cancer of the thymus gland)

As in cancer, the body consumes energy in fighting against cancer. Due to the high metabolic rate and consumption of food and energy by the cancer cells, the normal cells do not get enough energy and fuel, resulting in weight loss. When there is weight loss without any reason or diet plan, you must consult your health care provider.

Fever: Thymoma ( cancer of the thymus gland)

As the patient’s immunity is compromised, the patient becomes more susceptible to infections. However, Fever is the first sign of infection. Secondly, fever occurs due to infection and inflammation in the tumor.

When a patient feels fever again and again without any proper cause, and not responding to any antibiotic, it should be alarming, so you must contact your healthcare provider. Your healthcare provider will help in finding out the cause of the unknown fever.

Decreased appetite: Thymoma Causes, Symptoms

The typical sign of cancer is decreased appetite. Due to which the patient may present with decreased intake. This happens usually when there is a tumor located near the GI tract. The tumor presses on the intestine or stomach, which causes fullness.

Lethargy/weakness:

Due to low oral intake and weight loss patient will complain of fatigue very easily. Furthermore, patients may have paraneoplastic symptoms. To avoid lethargy, the patient must take food that contains energy. If the patient is unable to take large meals, small, frequent meals are suggested for easy absorption and digestion.

Diagnostic Tests for Diagnosis of Thymoma:

The following are the diagnostic tests to diagnose thymoma.

Chest X-rays: By doing a chest X-ray tumor can be identified in the chest.

HRCT (High Resolution Computed Tomography): This test gives a clearer image of the tumor and its involvement in surrounding tissues.

Tissue biopsy: A piece of tissue is taken for diagnostic purposes and to find out the type of cancer in it. The biopsy is a standard test to diagnose thymoma.

MRI (magnetic resonance imaging): It indicates the disease elsewhere in the body. Which may help in the staging of thymus cancer?

 What are the Risk Factors?

Not an exact cause is known, but the following may be some of the risk factors.

Family history: Patients with a family history of other cancers can be at greater risk of developing thymoma.

Radiation exposure: Patients exposed to radiation earlier than any other treatment may have thymoma.

Smoking: People who are chain smokers can be at greater risk.

Patients withAutoimmune diseases. Some studies show a link between some autoimmune diseases and thymoma. Patients withrheumatoid arthritis, myasthenia gravis, and autoimmune red cell aplasia can develop thymus cancer.

What is the treatment for Thymoma?

Treatment of thymoma depends upon the stage and spread of the disease. If the cancer is localized to the thymus gland, then surgery is preferred and is the best option.

Chemotherapy: Cytotoxic drugs called chemotherapy are given to kill the cancer cells and shrink the tumor before surgery. These medications can be in injection form or oral tablets, which enter the bloodstream and reach the cancer cells to kill them.

Radiation therapy: Radiation therapy is given to target the tumor and shrink it before surgery, as well as treat the cancer.

Surgery: After the tumor has shrunk, the oncological surgeon removes as much of the tumor as possible, called a thymectomy. Moreover, after surgery, radiation, or chemotherapy is administered to kill the remaining cancer cells.

Immunotherapy:

Immunotherapy is a treatment that enhances patients’ immune responses. When the patient’s immune system is strong, it attacks cancer cells and helps relieve symptoms.

Targeted therapy: The medication used in this therapy targets the specific molecules needed for cancer cells’ growth. Targeting and destroying these molecules inhibits cancer cell growth. These medications have fewer side effects on normal cells of the body.me

Palliative therapy: If the disease spreads to major organs like the lungs, liver, abdomen, and other parts, then only supportive treatment is given to settle the symptoms and provide comfort to the patient.

What is The Survival Rate of a Patient With Thymoma?

 The life expectancy of a patient after diagnosis of thymoma depends upon the stage of the disease. If cancer is localized to the thymoma and does not spread to other organs, the patient may live for many years. If cancer spreads to other parts at the time of diagnosis, this may complicate the patient’s condition.

 Conclusion:

Thymoma is a cancerous growth that affects the thymus gland. During the early stages, it may not display any symptoms, but as the tumor grows larger, the patient may start experiencing symptoms. To diagnose thymoma, doctors typically use CT chest scans, MRIs, and biopsies to take small samples of the thymus gland. The main treatments available include radiation therapy, chemotherapy, thymectomy (complete removal of the thymus gland), immunotherapy, and targeted therapy.