Keywords:
Pathology, Diagnostic procedure, MR, Soft tissues / Skin, Pelvis, Musculoskeletal soft tissue
Authors:
B. S. Seker, G. YILMAZ, M. Atalar, B. Yıldız; SIVAS/TR
DOI:
10.1594/ecr2018/C-1386
Results
The patients’ clinical characteristics are shown in Table 1.
Mean age at symptoms appearance was 32,6 ± 5.1 years (ranging from 24 to 44 years).
The presenting complaints were abdominal wall mass (n: 13),
cyclic (n: 12),
and dysmenorrhea (n: 5).
AWE was located dorsally or ventrally to the aponeurosis of the rectus abdominis muscle (n=6,
37.5%) or inside of it (n=10,
62.5%).
The size of the lesions ranged from 13×7 mm to 32×15 mm (TRxAP) in the axial plane.
The AWE lesions appeared heterogeneous or mildly hyperintense compared to the adjacent muscle on T2W MRI images,
and iso-/hypointense or mildly hyperintense on T1W images.
There were patchy hyperintense foci compatible with hemorrhage on fat suppression T1W images.
The lesions showed mild (n:12,
75%) to moderate (n:4,
25%) contrast uptake on post-contrast fat suppression T1W images.
The mean ADC value for AWE was 1.12 ± 0.05 x 10–3 (range: 0.99 to 1.19 x 10-3 mm2/s).
The mean ADC value for rectus abdominis muscle was 1.32 ± 0.20 x 10-3 mm2/s.
Seven (44%) of these sixteen patients had pelvic endometriosis with AWE on MRI.
We recorded data related to the lesion location,
sidedness,
MR appearance,
contrast enhancement and ADC values of the cases with AWE.
Data were expressed as numbers and percentages.
MRI data were analyzed with the chi-square test.
Significance was determined at the p<0.05 level.