Lymphoblast
- Size : Small to medium, 7 to 15 µm
- N/C ratio= Very elevated
- Cytoplasm
- Extension : Thin
- Basophilia : Moderately intense
- Number of granules : Absent
- Color of granules : N/A
- Membrane : Regular
- Nucleus
- Situation : Central
- Chromatin : Fine
- Nucleoli : Present
- Membrane : Regular
- Normal values : Absent in the blood
- Description / Pathology :
Small to medium cells, irregular nucleus with fine chromatin, rare presence of nucleolus (large lymphoblasts), very thin basophilic cytoplasm. medium to large cells, irregular nucleus with fine chromatin, rare presence of nucleolus (large lymphoblasts), very thin basophilic cytoplasm.
Acute lymphoblastic leukemia (ALL) FAB classification: small lymphoblasts ALL1, large lymphoblasts ALL2, Leukemia / Lymphoma Burkitt ALL3 (see Burkitt cells).