Resumo

DIAS, João Lopes; LUCAS, Rita  e  CUNHA, Teresa Margarida. Pelvic GPS (Gynaecological Positioning System) - A Rational Approach to Correctly Locate the Origin of Large Female Pelvic Tumours. Acta Radiol Port [online]. 2020, vol.32, n.1, pp.7-14.  Epub 02-Jun-2021. ISSN 2183-1351.  https://doi.org/10.25748/arp.14667.

The origin of large female pelvic masses may be difficult to recognize. Gynaecological organs are more commonly involved, but all other organs and structures within the pelvis have to be considered in a rational imaging approach to female pelvic tumours. The first step is to identify the normal anatomy and recognize the peritoneal folds and recesses. The patterns of displacement should then be evaluated in order to determine if the tumour is intra or extra-peritoneal. After these initial steps, the radiologist should look for organ- specific signs that may be particularly useful tumours originated in the ovary, tubes and uterus. The authors aim to review the main radiological signs available for determining the origin of female pelvic masses and to develop a rational algorithm to identify the place of origin of undetermined tumours on computed tomography (CT) and magnetic resonance imaging (MRI).

Palavras-chave : Female pelvic tumours; Extra-peritoneal space; Intra-peritoneal space; Ovary; Uterus; Fallopian tube; Computed tomography; Magnetic resonance imaging..

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