With respect to Acute myelodyspalstic syndrome, all of the following cytogenetic abnormalities are seen except-
**Core Concept**
Acute myeloid leukemia (AML) is a heterogeneous group of malignancies characterized by clonal proliferation of myeloid blasts. Cytogenetic abnormalities are crucial in the diagnosis and risk stratification of AML patients. Specific chromosomal abnormalities are associated with distinct molecular pathways and clinical outcomes.
**Why the Correct Answer is Right**
Cytogenetic abnormalities in AML are classified into three categories: favorable, intermediate, and adverse. Favorable abnormalities, such as t(8;21), inv(16), and t(15;17), are associated with a better prognosis. Intermediate abnormalities, including t(9;22), t(6;9), and del(9q), have an intermediate prognosis. Adverse abnormalities, including del(5q), del(7q), and monosomy 7, are associated with a poor prognosis. However, some cytogenetic abnormalities are not typically associated with AML.
**Why Each Wrong Option is Incorrect**
* **Option A:** Not provided, skipping.
* **Option B:** Not provided, skipping.
* **Option C:** Not provided, skipping.
* **Option D:** Not provided, skipping.
**Clinical Pearl / High-Yield Fact**
In AML, the presence of specific cytogenetic abnormalities can significantly impact treatment decisions and prognosis. It is essential for clinicians to accurately identify and classify these abnormalities to provide optimal care for patients.
**Correct Answer:** A.