title: Malignant tumours of the small intestine: a review of histopathology, multidetector CT and MRI aspects.
abstract: Small bowel neoplasms, including adenocarcinoma, carcinoid tumour, lymphoma and gastrointestinal stromal tumours, represent a small percentage of gastrointestinal cancers, yet are among those with the poorest prognosis compared with other gastrointestinal malignancies. Unclear clinical scenarios and difficult radiological diagnosis often delay treatment with negative effects on patient survival. Recently, multidetector CT (MDCT) and MRI have been introduced as feasible and accurate diagnostic techniques for the identification and staging of small bowel neoplasms. These techniques are gradually replacing conventional barium radiography as the tool of choice. However, the inherent technical and physiological challenges of small bowel imaging require a familiarity with patient preparation and scan protocols. Adequate knowledge of the histopathology and natural evolution of small bowel neoplasms is also important for differential diagnosis. The aim of this article is to review MDCT and MRI protocols for the evaluation of small bowel tumours and to provide a concise yet comprehensive guide to the most relevant imaging features relative to histopathology.
authors.affiliation: Department of Radiological Sciences, Sapienza University of Rome, Rome, Italy. michele.anzidei@gmail.com
authors.forename: M
authors.initials: M
authors.lastname: Anzidei
authors.forename: A
authors.initials: A
authors.lastname: Napoli
authors.forename: C
authors.initials: C
authors.lastname: Zini
authors.forename: M A
authors.initials: MA
authors.lastname: Kirchin
authors.forename: C
authors.initials: C
authors.lastname: Catalano
authors.forename: R
authors.initials: R
authors.lastname: Passariello
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D002276:Carcinoid Tumor / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D002985:Clinical Protocols; D003287:Contrast Media; D005260:Female; D006801:Humans; D007414:Intestinal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D007421:Intestine, Small / Q000000981:diagnostic imaging / Q000473:pathology*; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D011379:Prognosis; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D003287:Contrast Media