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M3

Abbreviation for:
third marginal coronary artery (see there)

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
References in periodicals archive ?
Partnerships and S corporations: The Schedules M-3 for Form 1065, U.
These are also available on the IRS Web site, by searching Schedule M-3.
The draft 2004 Schedule M-3 instructions discuss Schedule L, "Balance Sheet per Books," as follows:
The Schedule L balance sheet may show tax-basis balance sheet amounts if the corporation is allowed to use books and records for Schedule M-3 and the corporation's only books and records reflect tax-basis amounts.
Schedule M-2, Line 2, net income (loss) must equal the amount shown on Schedule M-3, Part II, Line 8.
Schedule M-3 replaces Schedule M-1, Reconciliation of Income (Loss) per Books With Income per Return, for taxpayers meeting the dollar threshold.
1) According to Robert Adams, the IRS's Senior Industry Advisor for the Large and Midsized Business Division, "it is estimated that the M-3 should reveal between 75 to 90 percent of the book-tax difference for most companies.
Zelisko observed that, "Although Schedule M-3 imposes a significant compliance and reporting burden on TEI member companies, the outcome was improved by the volunteer efforts of many TEI members.
gov) features a Schedule M3 page that includes published material about the schedule, including Schedule M-3 Instructions, and the FAQs, which are updated weekly to add answers to additional questions submitted by taxpayers.
Additional filers: The IRS is considering "moving the concept" of Schedule M-3 to additional entities, including taxpayers filing Form:
However, TEI has significant concerns about certain aspects of the proposed Schedule M-3 that should be addressed before it is adopted.
TEI understands that the IRS intends the new Schedule M-3 to increase the currency and efficiency of audits by permitting a focused review within a relatively brief period (e.