Type:
Educational Exhibit
Keywords:
Abdomen, Interventional non-vascular, Oncology, CT, Ultrasound, Biopsy, Neoplasia, Pathology, Tissue characterisation
Authors:
M. Ghasemzadeh, J. Hanson; Gosford, NSW/AU
DOI:
10.26044/ranzcr2021/R-0347
Background
As the availability and use of diagnostic imaging continues to increase, so too does the early/incidental discovery of neoplasms and conditions which can simulate neoplasms. These entities need to be distinguished from true tumours and other benign conditions, such as infection, and are critical for radiologists and pathologists to be aware of in their differential diagnostic repertoires. This is apparent in the increasing literature available on these. Mesenteric fibromatosis, Rosai-Dorfman disease and inflammatory myofibroblastic tumour are relatively rare mimics of tumours on imaging. We review the imaging appearances of biopsy proven cases of each of these entities from the Central Coast population, NSW, Australia. These were performed prior to and guided biopsy. The case of mesenteric fibromatosis occurred in the distal ileum, the case of Rosai-Dorfman disease occurred in the renal hilum and the two cases of inflammatory myofibroblastic tumour occurred in the distal ureter and gastric antrum.