differential diagnosis human Humans 52 male 52 Article 45 Diagnosis, Differential 41 female 41 adult 39 Male 33 middle aged 32 case report 28 Female 24 Middle Aged 22 aged 22 clinical article 21 diagnostic imaging 21 controlled study 20 priority journal 19 major clinical study 18 pathology 18 sensitivity and specificity 17 human tissue 15 retrospective study 14 child 13 nuclear magnetic resonance imaging 13 Aged 12 histopathology 12 procedures 12 Adult 11 computer assisted tomography 11