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How does intrathecal chemotherapy help treat leukemia?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

A 27-year-old female has acute leukemia (ALL). Her vision is lost because of the presence of malignant cells in the brain now, but her treatment was finished six months ago.

Previously, she got relapsed CSF 13 months back when her maintenance phase was going on. The doctor gave high-dose ITMX at that time, but it relapsed again. We do her CBC twice a week, and it is totally fine.

Please help.

Thank you.

Hi,

Welcome to icliniq.com.

Acute lymphoblastic leukemia has a very high relapse rate in adults (about 60 %). The higher the white cell count, the worse the prognosis. Those with the Philadelphia chromosome (chromosomal abnormality) have a poor prognosis, andbonemarrow transplantation is required.

Relapsed cases with confirmed bone marrow biopsy require intensive chemotherapy aiming for achieving new remission, then either bone marrow transplantation or maintenance chemotherapy. I strongly advise consulting a physician for bone marrow stem cell transplantation.

I hope this helps.

Thank you.

Patient's Query

Hello doctor,

Is bone marrow transplantation compulsory? Can it be cured through radiation because the patient's PBF is normal? It did not show any blast cells. We are hopeless now. Her treatment was started four years ago and finished five months ago. We already used too much money on chemotherapy. Please tell me, can malignant cells be cured through radiation or not?

Thank you.

Hi,

Welcome back to icliniq.com.

She most likely has a relapse focus in her brain as her bone marrow is free. In such cases, intrathecal (spinal) chemotherapy along with radiation of her brain (relapse focus) will be required. The prognosis depends on:

  • The time between the first remission and first relapse (good if more than 18 months).
  • The number of relapses (the higher, the worse).
  • The presence of the Philadelphia chromosome.
  • The response to the second course of chemotherapy.
  • The total WBC (white blood cells). Please send me her last CBC (complete blood count).

Of course, radiotherapy will be beneficial, but bone marrow stem cell transplantation is a good option.

I hope this helps.

Thank you.

Patient's Query

Hello doctor,

I have sent you the MRI and CBC as well. Please check it out and let me know what we need to do, and whether it is curable or not?

Thank you.

Hi,

Welcome back to icliniq.com.

I have checked the attached reports (attachment removed to protect patient identity). The CBC report results are within normal, which is a good sign. The brain MRI is suggestive of a brain relapse focus, which will require intrathecal chemotherapy and radiation therapy to the brain. Also, the report describes lesions that are a result of the past chemotherapy. The prognosis cannot be estimated; you should do your best and hope for the best.

I hope this helps.

Thank you.

Medically reviewed byiCliniq medical review team

Published At March 25, 2018
Reviewed AtDecember 2, 2025

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