What tests do I need right after being diagnosed with Sarcoma

Tests You'll Need After a Sarcoma Diagnosis

After being diagnosed with sarcoma, your medical team will order several important tests to understand your specific situation and plan treatment. Here's what you should expect:

Core Diagnostic Tests

Pathology Review Your tissue sample will be examined in detail to confirm the sarcoma type and determine the grade (how aggressive the cancer appears under the microscope). According to NCCN Guidelines for Soft Tissue Sarcoma, pathologists assess three key features:

• Differentiation - how closely the cancer cells resemble normal tissue
• Mitotic count - how many cells are actively dividing
• Necrosis - areas of dead tissue within the tumor

This grading system (called FNCLCC grade) helps predict how the cancer might behave.

Imaging Tests

MRI or CT of the Primary Tumor Site This creates detailed pictures of your tumor to measure its exact size, location, and how deeply it extends into surrounding tissues. This information is critical for surgical planning.

Chest Imaging (CT or X-ray) Since sarcomas commonly spread to the lungs, your doctor will image your chest to check for metastases (cancer spread). According to NCCN Guidelines, this is a standard part of staging.

PET Scan (in some cases) Your oncologist may recommend an FDG-PET/CT scan, which can help identify areas of active disease and assess how your tumor responds to treatment.

Blood Tests

Standard lab work typically includes:

• Complete blood count (CBC)
• Metabolic panel (kidney and liver function)
• Lactate dehydrogenase (LDH) - sometimes elevated in sarcoma

Why These Tests Matter

These tests serve several purposes:

1. Confirm the diagnosis - Pathology confirms it's sarcoma and identifies the specific type
2. Determine stage - Imaging shows whether cancer is localized or has spread
3. Guide treatment planning - Results help your team decide between surgery, radiation, chemotherapy, or combinations
4. Establish a baseline - Future scans will be compared to these initial images to track response to treatment

Questions to Ask Your Care Team

1. What is the specific type and grade of my sarcoma? (This affects treatment options significantly)
2. Have all the staging tests been completed, or are there additional tests planned?
3. When will I have results from all these tests, and when will we meet to discuss the treatment plan?
4. Are there any genetic or molecular tests being done on my tumor? (Some sarcomas have specific mutations that affect treatment)
5. Should I get a second opinion on my pathology before starting treatment?

Important Note on Multidisciplinary Care

According to NCCN Guidelines, referral to institutions with expertise in treating sarcoma is strongly recommended, and a multidisciplinary evaluation involving surgical, medical, and radiation oncologists is strongly encouraged. This means your care team should include specialists who focus specifically on sarcoma, as treatment planning is complex and requires coordinated expertise.

Once you have all these test results, your oncology team will use them to develop a personalized treatment plan tailored to your specific sarcoma type, grade, and stage.

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This information is for educational purposes only. Always consult your healthcare team for personalized medical advice and decisions.