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Sarcomatoid Mesothelioma – Symptoms, Diagnosis & Treatment

Sarcomatoid mesothelioma is a type of mesothelioma tumor made up of sarcomatoid cells. This cell type is the least coarse and most aggressive mesothelioma cell type, leading to the poorest disease expectation and fewer effective treatment options. however, doctors hope new treatment options will prove more effective against sarcomatoid mesothelioma. Learn more about discussion and wish with a unblock Mesothelioma Guide

What Is Sarcomatoid Mesothelioma?

Sarcomatoid mesothelioma describes a type of malignant mesothelioma tumor that is made up of the sarcomatoid cells.

Malignant mesothelioma tumors may have one of the following cell types:

  • Sarcomatoid: The least common mesothelioma cell type is sarcomatoid. It is also the most difficult to treat.
  • Epithelial: The most common and treatable cell type of mesothelioma is epithelial (also called epithelioid).
  • Biphasic: A mixture of the two cell types, biphasic mesothelioma’s rarity falls somewhere between sarcomatoid and epithelial.

Like the other mesothelioma cells, the only know cause of sarcomatoid mesothelioma is asbestos exposure .
Sarcomatoid cells are shaped like a spike, alike to a long cylinder. alternatively of remaining in place, sarcomatoid cells tend to move around the body well and promptly, leading to earlier distant metastases .
metastasis is the spread of cancer to distant parts of the body. Once the go around occurs, mesothelioma becomes harder to treat .
In summation to spreading easily, sarcomatoid cells look like other weave cells, often leading to a misdiagnosis. Misdiagnosis allows the aggressive sarcomatoid mesothelioma to advance quickly before a correct diagnosis can be confirmed and doctors can treat the cancer .
Quick Facts About Sarcomatoid Mesothelioma

  • According to the American Cancer Society, about 10%-20% of mesothelioma cases are sarcomatoid. They are usually pleural.
  • According to a 2015 study published in The American Journal of Surgical Pathology, sarcomatoid peritoneal mesothelioma is extremely rare, with under 30 cases ever reported.
  • The same American Journal of Surgical Pathology study found that the median age of diagnosis for sarcomatoid peritoneal mesothelioma was 66.
  • According to the same study, the average patient lifespan from the time of diagnosis was only 5 months.

Subtypes of Sarcomatoid Mesothelioma

Sarcomatoid mesothelioma has respective different sub-types. Regardless of subtype, however, patients often have a poor prognosis and rapid cancer progression .
Learn more about rare subtypes of sarcomatoid mesothelioma below .

  • Transitional Mesothelioma

    This type is identical rare, accounting for less than 1 % of patients with sarcomatoid mesothelioma. It is still characterized by the spindle shape, but its cells are more plump or rounded. Because of this, it can sometimes be misdiagnosed as epithelial mesothelioma .

  • Lymphohistiocytoid Mesothelioma

    This type besides accounts for less than 1 % of sarcomatoid mesothelioma. It normally forms in the pleura, or the membrane surrounding the lungs and thorax. It is made up of epithelial cells and immune cells. These immune cells can be both lymphocytes and plasma cells. Life anticipation is anywhere from two-20 months .

  • Desmoplastic Mesothelioma

    This type of sarcomatoid mesothelioma makes up 5 % of sarcomatoid mesothelioma. It does not have a defined pattern or form. It is most common in the pleura, the membrane surrounding the thorax and lungs. It is besides found in the peritoneum and testes. Life anticipation is about 3.8 months .

There are very few testify treatment options for patients with any of the sub-types of sarcomatoid mesothelioma .

Sarcomatoid Mesothelioma Symptoms

There are respective unlike symptoms that people experience from sarcomatoid mesothelioma. These mesothelioma symptoms normally take between 20 and 50 years to develop .
You can have this type of cancer for many years before exhibiting any symptoms .
Most people who fall victim to sarcomatoid mesothelioma are in their 60s or older .
different symptoms can be felt depending on where the sarcomatoid mesothelioma is located. If the affected role is diagnosed with malignant pleural mesothelioma, it will impact the lungs and chest wall .
More rarely, mesothelioma will form in the abdominal line, calling for a diagnosis of sarcomatoid peritoneal mesothelioma .
Early major symptoms that patients may experience include:

  • Chest pain
  • Coughing
  • Shortness of breath

Because these symptoms are coarse to many diseases and illnesses, many patients do not get diagnose right away based on these symptoms entirely .
early, more specific symptoms may develop over time .
Other symptoms may include:

  • Blood in feces or vomit
  • Bloody sputum (saliva/mucus mixture)
  • Coughing up blood
  • Decreased appetite
  • Fatigue
  • Nausea
  • Pain in the shoulders
  • Rib pain
  • Severe coughing
  • Vomiting
  • Weakness
  • Weight loss
  • Vomiting blood
  • Upper back pain

Most symptoms of sarcomatoid mesothelioma are the same as other types of mesothelioma. Shortness of breath is reported in all cases of mesothelioma .
however, nausea and vomiting seem to be particular to sarcomatoid mesothelioma .

Sarcomatoid Mesothelioma Diagnosis

It can be unmanageable to make a sarcomatoid mesothelioma diagnosis. This tumor takes decades to become apparent after initial contact with asbestos .
early on detection is unmanageable because the affected role is typically asymptomatic ( has no symptoms ), or presenting symptoms that are the lapp as other more coarse illnesses .
Most patients begin the process of diagnosis when they go to the doctor for shortness of breath or chest annoyance .
If exposure to asbestos fibers is suspected, doctors may ordering tests, or they can decree tests to exclude other diagnoses than mesothelioma .
Sarcomatoid mesothelioma diagnostic tests may include:

  • Chest X-rays
  • Computed tomography scans (CT scans)
  • Echocardiograms
  • Positron emission tomography (PET) scans
  • Magnetic resonance imaging (MRI)
  • Blood tests

blood tests look for biomarkers that help to distinguish the diagnosis of sarcomatoid mesothelioma from early disorders .
Biopsies can besides be taken from different parts of the torso to look at different cells and their makeup .
Sarcomatoid mesothelioma is chiefly diagnosed by a weave biopsy .
Mesothelioma pathologists ( doctors specializing in diagnosing mesothelioma through biopsies ) may use immunohistochemistry or other biopsy examen techniques to find antibodies alone to the sarcomatoid cellular telephone type .
Studies have shown that a biopsy that tests incontrovertible for protein calretinin and D2-40 with the antibody pancytokeratin frequently means sarcomatoid tumors.

From this, mesothelioma doctors can besides determine the cell type and stage of the disease .

Sarcomatoid Mesothelioma Misdiagnosis

sometimes sarcomatoid mesothelioma is misdiagnosed as something else .
It is normally misdiagnosed because sarcomatoid mesothelioma may present with non-specific symptoms or findings. many different illnesses and diseases can look sarcomatoid tied on pathology .
Some common sarcomatoid mesothelioma misdiagnoses include:

  • Fibrous pleurisy
  • Fibrous tumors
  • Fibrosarcoma
  • Metastasized renal sarcoma
  • Non-Hodgkin’s lymphoma
  • Pleural liposarcoma
  • Sarcomatoid carcinoma
  • Soft tissue sarcomas

A mesothelioma misdiagnosis is very dangerous because it prevents patients from getting the right treatments to extend their lives .

Sarcomatoid Mesothelioma Prognosis

The prognosis ( disease expectation ) for patients with sarcomatoid mesothelioma is not deoxyadenosine monophosphate good as it is for mesothelioma patients with other cellular telephone types .
A mesothelioma prognosis may vary depending on the general age, gender, and health of the patient .
It besides depends on the stage of mesothelioma when diagnosed. A patient who is diagnosed early on will have better treatment options and results than a patient diagnosed in the latter stages of the disease .
Sarcomatoid Mesothelioma Life Expectancy Sarcomatoid mesothelioma patients show a life anticipation of 1-28 months. The medial life anticipation is about 6 months .
The prognosis for this type is so poor because the cells quickly travel and spread to other parts of the body .
There are besides very few discussion options, meaning a affected role can do little to extend their median survival .

Sarcomatoid Mesothelioma Treatment

Sarcomatoid mesothelioma is one of the most unmanageable types of mesothelioma to treat .
The cells are resistant to many mesothelioma treatments, and they spread promptly throughout the body, making removal through surgery about impossible .
however, there are hush several treatment options open to patients with sarcomatoid mesothelioma .
The type of treatment doctors choose depends largely on the degree and location of the sarcomatoid mesothelioma, american samoa well as the overall health of the affected role .
Some patients may be able to withstand a more aggressive treatment than others .


Mesothelioma chemotherapy is often the foremost choice for treating sarcomatoid mesothelioma. It is fast-acting and can be effective in slowing or stopping progression during discussion .
Sarcomatoid Mesothelioma and Chemotherapy In some studies, 13 % of patients with sarcomatoid mesothelioma responded positively to chemotherapy treatment. In other types of mesothelioma, the rate is 21 % .
Chemotherapy is used because it can treat the sarcomatoid mesothelioma cells throughout the entire body .


Radiation therapy for mesothelioma is besides used in some patients. It is much used as a alleviative ( symptom-reducing ) discussion to shrink the sarcomatoid mesothelioma cells .
It is not very effective at slowing or stopping cell growth or movement. however, it can be helpful in improving symptoms and making the patient more comfortable, leading to a higher quality of life .


operation is used to treat sarcomatoid mesothelioma in patients that present with the disease in equitable a few places within the body .
It is not typically a very effective treatment, however, because sarcomatoid cells spread cursorily throughout the torso. It is difficult to remove all of the spindle cells through operation .
however, if diagnosis happens early and the cells have not spread throughout the body, surgery may be a viable option. surgery options for eligible patients with pleural sarcomatoid mesothelioma include extrapleural pneumonectomy and pleurectomy with decortication .

Other Treatment

Studies of raw treatments for sarcomatoid mesothelioma are presently being done, frequently focusing on immunotherapy .
memorial Sloan Kettering Cancer Center in New York is presently running eight different clinical trials of different drugs to treat sarcomatoid mesothelioma .
The University of Chicago, in collaboration with the National Cancer Institute, is in phase 2 of sarcomatoid mesothelioma discussion a well .
According to the National Center for Biotechnology Information, aesculapian specialists are conducting ongoing research in other treatment types .
Other treatment options for sarcomatoid mesothelioma may include:

  • Viral introduction therapies
  • Immunotherapies
  • Cancer vaccines
  • Antibody therapies

Doctors will be able to determine the good discussion or clinical trials for patients, depending on the stagecoach and localization of the malignant sarcomatoid mesothelioma .
Patients should besides speak with an know mesothelioma lawyer to learn more about paying for treatments .

Hope for Victims of Sarcomatoid Mesothelioma

A mesothelioma diagnosis affects more than just your health. It can touch just about every area of your life.

Sarcomatoid mesothelioma is the most unmanageable type of mesothelioma to treat .
however, new treatments and clinical trials may give hope to sarcomatoid mesothelioma victims and their sleep together ones .
Our team has helped hundreds with mesothelioma find top doctors, get data on treatment options, and more. Get our release mesothelioma guide today .

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