Major Cytogenetic Response in Chronic Myelogenous Leukemia, BCR-ABL1 Positive

**Semantic type:** Finding

**Definition:** A cytogenetic finding indicating Philadelphia chromosome positivity less than or equal to 35% in a patient treated for chronic myelogenous leukemia, BCR-ABL1 positive.

**Synonyms:** - MCyR in Chronic Myelogenous Leukemia, BCR-ABL1 Positive - Major Cytogenetic Response