Eosinophilic inflammation refers to the accumulation of eosinophils in tissues, often in response to an allergic reaction, infection, or certain autoimmune conditions. This type of inflammation can be identified histologically by the presence of numerous eosinophils, which are easily recognized due to their eosinophilic cytoplasmic granules. Conditions such as asthma, eosinophilic esophagitis, and certain parasitic infections often exhibit eosinophilic inflammation.