Mei Ying

Abstract Background: Collision hematologic malignancies, characterized by the concurrent presence of clonally independent myeloid and lymphoid neoplasms within a single patient, are exceptionally uncommon. Diagnosing these malignancies is particularly challenging when they occur in the context of chronic inflammatory diseases, where distinguishing between reactive and neoplastic processes is complex.

The predominant effect of both types of blur is to cause the observers to miss the red signals rather than misname them. While miscalling red as yellow is the second most common error, it is very much less frequent than failing to see the red. The not-seen rate in the previous study was not reported [3].