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FAB classification

French-American-British classification of acute leukemia Hematology A schema that divides acute leukemias into lymphoid–ALL or myeloid–AML cell lines; of childhood ALL, 70% are predominantly L1, 27% are L2, and 3% or less are L3 or Burkitt cell type, in adults with ALL, 30% are L1, 65% are L2, and 5% are L3
FAB classification, acute leukemias
Acute lymphocytic leukemia (ALL)
L1  Small monotonous lymphocytes
L2  Mixed L1- and L3-type lymphocytes
L3  Large homogeneous blast cells
Acute myeloid leukemia (AML)
M1  Myeloblasts without maturation
M2  Myeloblasts with maturation (best AML prognosis)
M3  Hypergranular promyelocytic leukemia (faggot cells)
M3V  Variant, microgranular promyelocytic leukemia
M4  Myelomonocytic leukocytes
M5  Monocytic, subtype
  a. Poorly differentiated monocytic leukemia
  b. Well differentiated monocytic leukemia
M6  Erythroleukemia/DiGuglielmo syndrome
M7  Megakaryocytic leukemia Pleomorphic undifferentiated cells with cytoplasmic blebs; myelofibrosis or ↑ BM reticulin; positive for platelet peroxidase antifactor VIII
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.




Acute myelomonocytic leukemia.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
He said that the cost of the project is estimated at Rs 22 billion and it is worth a mention of three sections of the Pindi Bhattian-Multan Motorway (M-4) have already been completed which are fully functional.
On completion, the 293-km M-4 project will cut down travel time between Pindi Bhattian and Multan to about two and a half hours.
NHA spokesman Kashif Zaman told reporter on Sunday that with its completion, out of five, four sections of the M-4 would become operational, leaving behind only Shorkot-Khanewal section.
Chaudhary Muhammad Nawaz President Faisalabad Chamber of Commerce and Industry (FCCI) said that the M-4 will not only link Faisalabad with southern part of Punjab through reliable road network of motorway but also facilitate the movement of goods from Karachi to upcountry.
The project is funded by the Asian Development Bank (ADB) which gave $178 million loan for construction of Gojra-Shorkot section of M-4.
ISLAMABAD, August 18, 2009 (Frontier Star): Prime minister Syed Yousuf Raza Gilani would lay down the foundation stone of Faisalabad, Khanewal and Multan motor way (M-4) on Wednesday (today).
Construction for the Rs 17 billion Gojra-Shorkot section of Pindi Bhattian-Multan Motorway (M-4) had been divided into two phases to ensure completion within the shortest possible time, he stated.
ISLAMABAD -- Construction of the 62-kilometer Gojra-Shorkot Section of Faisalabad-Multan Motorway (M-4) is in full swing and the project will be completed by March 2018.
ISLAMABAD -- The 184-km Faisalabad-Khanewal (M-4), a part of the north-south transport corridor, would be completed at a cost of US$ 170 million by March 2018.
The 240 km M-4 will provide a shorter and direct connection between Southern port cities of Karachi and Gwadar with north of the country.
The M-4 has been divided into four segments the 58km Faisalabad-Gojra section,the 62km Gojra-Shorkot section; the 64km Shorkot-Khanewal section and the 45km Khanewal-Multan section.
ISLAMABAD -- The completion of Faisalabad-Multan Motorway (M-4) will improve Pakistan's vital north-south road network, promote economic growth, create employment opportunities and ensure regional connectivity.