The phrase "abnormality could not" is correct and usable in written English.
It can be used in contexts where you are discussing the inability to identify or recognize an abnormality in a situation or subject.
Example: "The doctors concluded that the abnormality could not be detected through standard imaging techniques."
Alternatives: "abnormality was unable to" or "abnormality cannot".
"This surgeon had visual-spatial abnormalities, could not do fine motor movements, could not retain information, and his verbal I.Q. was much lower than you'd expect".
Growth abnormalities could not be found over a four-month observation period.
In our study, the previous suggestion that native AT and TrypAT might have similar anticoagulant activities, as given by the similar improvement of coagulation abnormalities, could not be confirmed by our in vivo results, showing that TrypAT-treated animals presented significantly faster thrombosis formation compared to animals treated with native AT.
Our patient met five of the six criteria; only paranasal sinus abnormalities could not be substantiated.
Another limitation was that cytological abnormalities could not be histologically confirmed in all women.
Furthermore, the evidence for these abnormalities could not be obtained by examination of bright field images.
Hence, the observed behavioural abnormalities could not be attributed to a gross morphological alteration of the brain structure.
A further drawback might be the fact that IgVH mutational status and several prognostically important chromosomal abnormalities could not be assessed in the entire cohort.
As a consequence, the clinical relevance of the predefined abnormalities could not be evaluated in some cases, specifically in case of large atelectasis and severe pulmonary congestion.
These abnormalities could not be associated with any particular parameter, like donor cell source or genetic modification, and might be a general side effect in pig cloning.
