Leukemia Diagnosis and Evaluation

Learn how is leukemia diagnosed with precision at Liv Hospital. From bone marrow biopsy to advanced flow cytometry and genetic profiling for targeted therapy.

Diagnosis and Evaluation

How is leukemia diagnosed ?

In the fight against blood cancer, accuracy is everything. A diagnosis of "leukemia" is not enough; to treat it effectively, we must know its exact genetic "fingerprint." Is it acute or chronic? Is it myeloid or lymphocytic? Does it carry specific mutations like the Philadelphia chromosome?

At Liv Hospital, how is leukemia diagnosed is a process that combines rapid clinical assessment with advanced genomic technology. Our multidisciplinary tumor board ensures that every international patient receives a precise diagnosis often within days of arrival allowing us to initiate the correct life-saving therapy immediately.

Initial Screening: The Complete Blood Count (CBC)

For most patients, the journey begins with a simple blood test. Whether you visited a doctor due to fatigue or it was a routine check-up, the Complete Blood Count (CBC) provides the first major clue.

What Are We Looking For?

Healthy blood has a balance of red cells, white cells, and platelets. In leukemia, this balance is destroyed.

• White Blood Cell Count: Often extremely high (leukocytosis) or dangerously low (leukopenia).
• Anemia: Low hemoglobin/red blood cell levels.
• Thrombocytopenia: Low platelet counts.
• The Presence of "Blasts": This is the most critical marker. Blast cells are immature white blood cells that should stay in the bone marrow. If they are found circulating in your bloodstream (peripheral blood smear), it is a strong indicator of leukemia.

The Definitive Test: Bone Marrow Aspiration and Biopsy

While blood tests suggest leukemia, they cannot confirm the specific subtype or the genetic mutations driving it. To answer how to test for leukemia definitively, we must go to the source: the bone marrow.

The Procedure

Many patients are anxious about this test. At Liv Hospital, we perform it under local anesthesia and sedation to maximize comfort. It involves two steps, usually done at the back of the hip bone (pelvis):

1. Aspiration: A thin needle removes a small amount of liquid bone marrow.
2. Biopsy: A slightly larger needle removes a small core of solid bone tissue (about the size of a pencil lead).

What Pathology Reveals

Our pathologists analyze these samples to determine:

• Cellularity: How crowded is the marrow? (Leukemia marrow is often "hypercellular," packed with cancer cells).
• Blast Percentage: For a diagnosis of Acute Leukemia (AML/ALL), the marrow must typically contain at least 20% blast cells.

Precision Medicine: Genetic and Molecular Profiling

This is where Liv Hospital distinguishes itself from standard care. We do not just look at the cells under a microscope; we analyze their DNA. This step is vital because it determines which "Targeted Therapies" will work for you.

1. Flow Cytometry (Immunophenotyping)

This laser-based technology allows us to identify the specific proteins (antigens) on the surface of the leukemia cells.

• Why it matters: It tells us if the leukemia is Myeloid or Lymphoid (T-cell vs. B-cell). This distinction dictates whether we use chemotherapy Protocol A or Protocol B.

2. Cytogenetic Analysis (Karyotyping)

We look for changes in the chromosomes of the leukemia cells.

• Translocations: Sometimes, part of one chromosome breaks off and attaches to another. The most famous example is the Philadelphia Chromosome (t9;22) found in CML and some ALL cases. Patients with this marker respond incredibly well to Tyrosine Kinase Inhibitors (TKIs).

3. Molecular Testing (NGS)

We use Next-Generation Sequencing (NGS) to find microscopic gene mutations that cytogenetics might miss, such as:

• FLT3
• NPM1
• IDH1 / IDH2
• TP53
• The Impact: If you have an FLT3 mutation, standard chemo might not be enough. We know immediately to add a specific inhibitor drug to your regimen and potentially fast-track you for a stem cell transplant.

Additional Staging Tests

Depending on the type of leukemia suspected, other tests may be necessary to see if the disease has spread beyond the blood and marrow.

Lumbar Puncture (Spinal Tap)

This is primarily used for Acute Lymphoblastic Leukemia (ALL). Leukemia cells often "hide" in the fluid surrounding the brain and spinal cord (CSF).

• The Test: A needle is inserted between the vertebrae to collect a small amount of fluid.
• The Treatment: If cells are found (or even to prevent them), chemotherapy may be injected directly into this fluid (intrathecal chemotherapy).

Imaging Scans

• CT Scans / PET-CT: Used to check for swollen lymph nodes in the chest or abdomen, or to see if leukemia has infiltrated organs like the spleen or liver.

The Liv Hospital Diagnostic Advantage

Time is the enemy of acute leukemia. In many national health systems, waiting for genetic results can take weeks.

• Rapid Turnaround: Our in-house pathology and genetic labs prioritize leukemia cases. We often have preliminary flow cytometry results within 24 hours, allowing treatment to start while deeper genetic sequencing is finalized.
• The Tumor Board: Your results are reviewed not just by a hematologist, but by a panel including geneticists, pathologists, and transplant specialists. This ensures no treatment option including clinical trials or advanced cellular therapies is overlooked.