Editing Cell biology (section)

==Pathology==
{{Main|Cytopathology}}
The scientific branch that studies and diagnoses diseases on the cellular level is called [[cytopathology]]. Cytopathology is generally used on samples of free cells or tissue fragments, in contrast to the [[pathology]] branch of [[histopathology]], which studies whole tissues. Cytopathology is commonly used to investigate diseases involving a wide range of body sites, often to aid in the diagnosis of cancer but also in the diagnosis of some infectious diseases and other inflammatory conditions. For example, a common application of cytopathology is the [[Pap smear]], a [[Screening (medicine)|screening test]] used to detect [[cervical cancer]], and [[cervical intraepithelial neoplasia|precancerous cervical lesions]] that may lead to cervical cancer.<ref>{{Cite web|date=2010-05-13|title=What is Pathology?|url=https://www.news-medical.net/health/What-is-Pathology.aspx|access-date=2021-09-21|website=News-Medical.net|language=en}}</ref>