骨髄 こつずい芽球 がきゅうではありませんでした
kotsuzuigakyūdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 骨髄芽球

1. Was not a blast cell.; Was not bone marrow blast.

Past/Perfective
Negative
Polite
Formal Register
Physiology