Related Experiment Video
Updated: Jun 26, 2026

08:31
Murine Model of Leukemia Relapse to Induction Chemotherapy for Acute Lymphoblastic Leukemia
Published on: October 17, 2025
Extramedullary leukemia in children presenting with proptosis
Ramesh Murthy1, Geeta K Vemuganti, Santosh G Honavar
1Ocular Pathology, L V Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, India. drrameshmurthy@gmail.com
Journal of Hematology & Oncology
|January 27, 2009
Summary
Orbital manifestations of acute myeloid leukemia (AML) are highlighted. A peripheral blood smear is crucial for diagnosing AML in patients with sudden proptosis or orbital mass, often complemented by bone marrow biopsy.
Area of Science:
- Ophthalmology
- Hematology
- Oncology
Background:
- Acute myeloid leukemia (AML) can present with orbital manifestations.
- Orbital signs may be the initial presentation of AML.
- Early diagnosis is critical for effective treatment.
Purpose of the Study:
- To highlight orbital manifestations of AML.
- To emphasize the diagnostic role of peripheral blood smear in AML.
- To evaluate the utility of orbital biopsy and blood smear in diagnosing AML.
Main Methods:
- Retrospective review of 12 patients with proptosis diagnosed with AML.
- Analysis of clinical presentation, orbital findings, and diagnostic methods.
- Correlation of orbital disease with AML diagnosis.
Main Results:
- Median age of presentation was 6 years; male:female ratio was 0.7:1.
- Proptosis was present in all patients; orbital mass in 41.7%.
- Peripheral blood smear alone diagnosed AML in 8 patients; biopsy confirmed in 4.
Conclusions:
- Peripheral blood smear is vital for sudden proptosis/orbital mass in children/young adults.
- Orbital biopsy should be considered alongside blood smear.
- Bone marrow biopsy complements diagnosis in aleukemic leukemia or inconclusive smears.
Related Concept Videos
The Retinoblastoma Gene
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
Bone Marrow Sampling and Transplants
Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy the...
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy the...
Differentiation of Common Myeloid Progenitor Cells
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...