IHC Marker-CD1a Test: Booking, Price, and Results
About IHC Marker-CD1a Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | CD1a immunostain, CD1a immunohistochemistry, CD1a IHC stain, CD1a marker |
| Sample Type | Formalin-fixed paraffin-embedded (FFPE) tissue block |
| Fasting Required | No |
| Report Time | 7 days |
| Recommended For | All ages and genders, based on clinical indication |
| Price | Starting at ₹1,920 |
What is an IHC Marker-CD1a Test?
The IHC marker-CD1a test is a specialised laboratory test that uses immunohistochemistry (IHC) to detect the CD1a protein in tissue samples. CD1a is a surface protein found on certain immune cells, particularly Langerhans cells in the skin and immature T cells. Doctors typically order this test when they suspect specific immune cell disorders or certain types of blood cancers. The test is performed on a formalin-fixed paraffin-embedded (FFPE) tissue block obtained through a biopsy.
What Does an IHC Marker-CD1a Test Measure?
The IHC marker-CD1a test detects the presence and distribution of the CD1a protein within a tissue sample. The table below summarises the test analyses.
| Component | What It Tells Us |
|---|---|
| CD1a protein expression | Whether CD1a is present (positive) or absent (negative) in the tissue cells |
| Staining pattern | Where in the cell the protein is located (typically on the cell membrane surface) |
| Staining intensity | How strongly the protein is expressed, which aids in diagnosis |
A positive result indicates the presence of CD1a-expressing cells, which are characteristic of Langerhans cells and certain immature T cells. A negative result suggests the cells in question are not of Langerhans cell origin.
Why is an IHC Marker-CD1a Test Done?
A doctor may order the CD1a IHC stain when a tissue biopsy has been taken, and further analysis is needed to identify the type of cells present. Below are the common reasons for this test.
Common Symptoms That May Require This Test
Several symptoms may prompt a doctor to request this test. They include:
- Unexplained bone pain or tenderness
- Skin rashes or unusual skin lesions that do not resolve
- Swollen lymph nodes
- Recurrent ear infections
- Unexplained fever
- Excessive urination and thirst (polyuria and polydipsia)
Conditions This Test Can Help Detect
The IHC marker-CD1a test helps identify a range of conditions involving abnormal immune or lymphoid cells:
- Langerhans cell histiocytosis (LCH), a rare disorder where excess Langerhans cells accumulate in tissues
- T-cell acute lymphoblastic leukaemia or lymphoma (T-ALL), particularly the cortical subtype
- Langerhans cell sarcoma, a rare and aggressive tumour of Langerhans cell origin
- Cutaneous T-cell lymphoma, a type of cancer affecting the skin's T cells
How to Prepare and What to Expect
The IHC marker-CD1a test procedure does not require any special physical preparation from the patient. However, providing complete clinical documentation is essential for accurate results.
Do You Need to Fast?
No fasting is required for this test. The test is performed on a tissue sample that has already been collected via biopsy, so dietary restrictions do not apply.
Practical Tips Before Your Test
Being well prepared helps the laboratory process the sample correctly. Keep the following points in mind:
- Bring a detailed clinical history, including your symptoms, previous test results, and family history, as this is required for the test
- Carry the original histopathology report and any relevant radiological records
- Bring the FFPE tissue block or unstained slides from the biopsy if these are already available
- Inform the pathologist of the suspected diagnosis before sample submission
- Ensure the tissue was fixed in 10% formalin, as other fixatives may produce unreliable results
Step-by-Step Procedure
The following steps describe how the IHC marker-CD1a test is carried out from biopsy to report.
- A tissue sample is obtained from the patient through a biopsy procedure performed by a doctor.
- The tissue is fixed in formalin and embedded in paraffin wax to create the FFPE tissue block, which preserves the sample.
- The block is sectioned into very thin slices and placed onto glass slides in the laboratory.
- Specific antibodies that bind to the CD1a protein are applied to the slides, followed by a detection system that makes the binding visible under a microscope.
- A qualified pathologist examines the slides to assess the staining pattern and intensity.
- The findings are correlated with the patient's clinical history and other diagnostic markers before the report is issued.
Factors That Can Affect Accuracy
Several technical factors can influence the reliability of the result:
- Inadequate tissue fixation or use of a fixative other than 10% formalin
- Insufficient tissue volume obtained during the biopsy
- Delays between tissue collection and fixation
- Selection of an inappropriate antibody clone
- An incomplete or absent clinical history provided to the pathologist
Understanding Your IHC Marker-CD1a Test Results
Results from the CD1a immunostain are reported qualitatively by a pathologist, rather than as a numerical value. Your doctor will review the findings alongside your clinical history and other test results.
| Result | Typical Implication |
|---|---|
| Positive | Suggests the presence of CD1a-expressing cells; supports Langerhans cell lineage or immature T-cell origin |
| Negative | Suggests the cells are not of Langerhans cell origin; consistent with other histiocytic or lymphoid disorders |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
How to Maintain Healthy Levels
Because this is a diagnostic tissue test rather than a routine screening test, "normal levels" in the conventional sense do not apply. The following general points support overall health and timely diagnosis:
- Attend follow-up appointments promptly if you have unexplained bone pain, persistent skin lesions, or swollen lymph nodes
- Ensure all biopsy findings are reviewed by a multidisciplinary team that includes both pathologists and treating clinicians
- Keep copies of previous pathology reports and imaging, as these help doctors interpret new test findings accurately
Lupin Diagnostics IHC Marker-CD1a Test Price
The IHC marker-CD1a test cost at Lupin Diagnostics starts at ₹1,920. This test requires a visit to a Lupin Diagnostics centre; home collection is not available for this test.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 1920 |
| CHENNAI | 1920 |
| HYDERABAD | 1920 |
| KOLKATA | 1920 |
| NAVI MUMBAI | 1920 |
| PUNE | 1920 |
Disclaimer: Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
You can book the IHC marker-CD1a test online by following these steps:
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred centre location.
- Visit the centre at your scheduled time for sample submission.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Frequently Asked Questions
The IHC marker-CD1a test is used to identify CD1a-expressing cells in a tissue sample. It helps doctors diagnose conditions such as Langerhans cell histiocytosis and T-cell acute lymphoblastic leukaemia or lymphoma. It also assists in distinguishing these conditions from other disorders that look similar under the microscope.
The tissue sample is obtained through a biopsy, a procedure performed by a doctor to remove a small piece of tissue from the affected area. The sample is then processed in a laboratory. The patient is not required to do anything additional after the biopsy has been performed.
A positive result does not automatically confirm a cancer diagnosis. CD1a positivity must be interpreted alongside the patient's clinical history, symptoms, and other laboratory or imaging findings. Your doctor and pathologist will review the full picture before reaching a diagnosis.
Clinical history helps the pathologist interpret the staining results accurately. Without information about the patient's symptoms, suspected diagnosis, and previous investigations, it is difficult to place the CD1a finding in the correct diagnostic context. An incomplete history may delay or affect the accuracy of the report.
Yes, the IHC marker-CD1a test can be performed in patients of any age, including children. Langerhans cell histiocytosis, one of the key conditions this test helps diagnose, is actually more common in children than in adults.
When LCH is suspected, CD1a is often tested together with CD207 (Langerin), which is another highly specific marker for Langerhans cells. Additional markers such as S100, CD4, and CD68 may also be included to build a complete diagnostic picture.
At Lupin Diagnostics, the report is delivered within 7 days. This turnaround allows sufficient time for tissue processing, antibody staining, microscopic analysis, and pathologist review. Your report will be shared digitally once ready.
IHC Marker-CD1a Test: Booking, Price, and Results
