English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report 4 acute promyelocytic leukemia cases that demonstrated karyotypic abnormalities in addition to the classic t(15;17) translocation and did not contain any Auer rods in leukemic blasts and dysplastic promyelocytes, either in the peripheral blood or in the bone marrow. Morphologically, 2 cases were characterized as the common or hypergranular type, and 2 were otherwise typical of the microgranular variant. Three patients had typical clinical and laboratory signs of disseminated intravascular coagulation. Immunophenotypic analysis of the blasts and dysplastic promyelocytes by dual-color flow cytometry revealed an immunoprofile consistent with acute promyelocytic leukemia. Cytogenetic analysis of the bone marrow revealed the following karyotypes: case 1, [47,XY,t(15;17)(q22;q12),+21]; case 2, [47,XY,t(15;17)(q22;q12),-16,+2 mar]; case 3, [47,XX,t(15;17)(q22;q12)ider(17)(q10),+8]; and case 4, [47,XY,der(5)t(5;?9)(p15;q12).t(15;17)(q22;q12]. Review of an additional 7 cases with t(15;17) as the sole cytogenetic abnormality revealed Auer rods in all cases. Our findings emphasize the importance of cytogenetics in evaluating acute myeloid leukemias. Acute promyelocytic leukemia without Auer rods, which may be morphologically confused with other types of leukemia (in particular, acute myeloblastic leukemia, type M2 or M5) or agranulocytosis with maturation arrest, appears to be associated with additional chromosomal abnormalities and possibly a poorer prognosis.

Acute Promyelocytic Leukemia With Additional Chromosomal Abnormalities and Absence of Auer Rods