PMID- 30038695 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220318 IS - 1733-134X (Print) IS - 1899-0967 (Electronic) IS - 1733-134X (Linking) VI - 83 DP - 2018 TI - Magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma - is it useful? PG - e161-e165 LID - 10.5114/pjr.2018.75642 [doi] AB - PURPOSE: Primary fallopian tube carcinoma (PFTC) is the rarest form of female genital malignancy. The imaging applied for suspected adnexal masses includes transvaginal ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI), but the vast majority of PFTC is recognised intraoperatively. MATERIAL AND METHODS: The study group consisted of seven women with postoperatively histopathological diagnosis of PFTC. To recognise characteristic findings for PFTC, retrospective analysis of preoperative MRI was performed. All patients underwent MRI of the pelvis and abdomen using a 1.5T MR system. Based on the results of the above imaging, suspected adnexal masses were recognised. MRI protocol contained T2-weighted images, fat-suppressed T2-weighted, T2-TIRM, DW EPI, pre- and postcontrast dynamic 3D T1 GRE in transverse orientation, with diffusion weightings of 0, 50, 100, 150, 200, 400, 800, and 1200 s/mm2. Regions of interest were outlined by a radiologist, who documented the character of adnexal masses on diffusion-weighted (DW) images and apparent diffusion coefficient (ADC) maps. RESULTS: In all seven patients with PFTC unilateral tumour was found. On all DW images (with beta values of 0, 50, 100, 150, 200, 400, 800, and 1200 s/mm2) the mean signal intensities of solid parts of tumour were significantly higher than the mean signal intensities of normal ovarian tissue (p = 0.0001). There were no statistically significant differences between eight beta values applied for ADC calculations. CONCLUSIONS: Preoperative diagnostics of PFTC is difficult and mainly based on morphological features. Previous research did not show characteristics of PFTC in post-contrast dynamic imaging. In our material a clear increasing of signal intensity in DW imaging occurred independently of the beta value. FAU - Grabowska-Derlatka, Laretta AU - Grabowska-Derlatka L AD - 2 Department of Radiology, Medical University of Warsaw, Poland. FAU - Szeszkowski, Wojciech AU - Szeszkowski W AD - 2 Department of Radiology, Medical University of Warsaw, Poland. FAU - Sienko, Jacek AU - Sienko J AD - 2 Department of Obstetrics and Gynaecology, Medical University of Warsaw, Poland. FAU - Derlatka, Pawel AU - Derlatka P AD - 2 Department of Obstetrics and Gynaecology, Medical University of Warsaw, Poland. LA - eng PT - Journal Article DEP - 20180420 PL - Poland TA - Pol J Radiol JT - Polish journal of radiology JID - 101175532 PMC - PMC6047086 OTO - NOTNLM OT - ADC values of fallopian tube tumours OT - magnetic resonance diffusion-weighted imaging OT - primary fallopian tube carcinoma (PFTC) EDAT- 2018/07/25 06:00 MHDA- 2018/07/25 06:01 PMCR- 2018/01/01 CRDT- 2018/07/25 06:00 PHST- 2017/04/04 00:00 [received] PHST- 2017/08/07 00:00 [accepted] PHST- 2018/07/25 06:00 [entrez] PHST- 2018/07/25 06:00 [pubmed] PHST- 2018/07/25 06:01 [medline] PHST- 2018/01/01 00:00 [pmc-release] AID - 32755 [pii] AID - 10.5114/pjr.2018.75642 [doi] PST - epublish SO - Pol J Radiol. 2018 Apr 20;83:e161-e165. doi: 10.5114/pjr.2018.75642. eCollection 2018.