Ewing Family of Tumors – Prognosis & Tests

Tests undertaken for examining the bone and soft tissue are employed in diagnosis and determining the staging of the Ewing family of tumors. A biopsy is usually conducted for diagnosing Ewing family of tumors.

During the biopsy procedure, removal of the cells and tissues is done in order to be sent for microscopic analysis. The pathologist would analyse the sample to detect any symptoms of cancers. The experts namely, pathologist, radiation oncologist and surgeon would work in unison for charting out a plan on how to undertake the biopsy procedure. This is done to ensure that the biopsy incision would not affect the subsequent treatment involving surgical intervention for tumor removal and radiation therapy. When biopsy is conducted in the same location where the treatment would be carried out, it would be more beneficial for the patient.

The below stated tests might be conducted on the tissue sample that was removed during biopsy.

• Light and electron microscopy – A laboratory test wherein a regular and high-power microscope is used to scan the cells in the tissue sample taken during biopsy for any form of anomalous cell changes.
• Cytogenetic analysis – A laboratory test wherein the cells present in the tissue sample are microscopically analysed for spotting any abnormal changes in the chromosomes.
• Reverse-transcription polymerase chain reaction test or RT-PCR – A form of laboratory test procedure wherein cells present in the tissue sample are analysed by employing chemicals for observing certain genetic changes.
• Immunohistochemistry study – A laboratory test carried out to test for particular antigens by using substances like antibody, dye or radioisotope that are added to the tissue sample. This kind of study is employed for telling the variation between different cancerous types.

Factors affecting prognosis (probability of recovery) and Treatment choices

The prognosis or likelihood of recovery is dependent on particular factors prior to and subsequent to treatment.

Prior to treatment, prognosis is dependent on:

• The location in the body where the tumor originated.
• How large the tumor size is during diagnosis.
• If the tumor has metastasized or spread to other sites in the body.
• The age, sex and overall health status of the patient.
• If the tumor has lately been detected or is a relapse.

Following treatment, prognosis gets affected due to:

• If the tumor had been totally removed during surgical intervention.
• Has the cancer relapsed more than 2 years subsequent to the first treatment?

Treatment alternatives are dependent on:

• The location of the tumor in the body and how big the tumor size is.
• The age and overall health condition of the patient.
• How the treatment would affect the patient’s look and vital body functions.
• Has the cancer recently been detected or has it relapsed.

Decisions regarding opting for surgical intervention are dependent on how favourably the patient is responding to the preliminary line of treatment employing chemotherapy or radiation therapy.

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