2014
DOI: 10.1016/j.medici.2014.09.006
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Sacral insufficiency fracture after pelvic radiotherapy: A diagnostic challenge for a radiologist

Abstract: Sacral insufficiency fractures can occur as a complication after pelvic radiotherapy. Despite several recent studies showing high incidence of sacral insufficiency fractures in elderly women after pelvic radiotherapy this condition still remains underdiagnosed. We present a case of sudden onset of low back pain in a female patient with a history of cervical cancer radiotherapy. Initial diagnostic imaging misinterpreted SIF for metastasis. Bone scan and single-photon emission-computed tomography with low-dose c… Show more

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Cited by 25 publications
(19 citation statements)
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“…15,19 However, only case reports have indicated the possible value of SPECT/CT in the evaluation of IF after pelvic RT in patients with cervical cancer, and the SPECT/CT features of IF have not been summarized. 9 The diagnosis of IF can be a challenge if the radiologist is not familiar with the appearance of this disease, since these fractures occur as a new onset of the low back pain without any significant trauma, which may be misinterpreted as a bone metastasis. In our study, osteosclerosis was seen in 70% of lesions on CT, fracture lines were noted in the IF lesion in 47.5% of lesions, and osteolytic change was seen in 10% of lesions.…”
Section: Discussionmentioning
confidence: 99%
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“…15,19 However, only case reports have indicated the possible value of SPECT/CT in the evaluation of IF after pelvic RT in patients with cervical cancer, and the SPECT/CT features of IF have not been summarized. 9 The diagnosis of IF can be a challenge if the radiologist is not familiar with the appearance of this disease, since these fractures occur as a new onset of the low back pain without any significant trauma, which may be misinterpreted as a bone metastasis. In our study, osteosclerosis was seen in 70% of lesions on CT, fracture lines were noted in the IF lesion in 47.5% of lesions, and osteolytic change was seen in 10% of lesions.…”
Section: Discussionmentioning
confidence: 99%
“…With the increasing use of imaging modalities in the surveillance of malignancies, there is heightened awareness of pelvic IF. 8,9 Magnetic resonance imaging (MRI) is sensitive to the detection of these fractures. However, MRI findings may not always show a fracture line, and abnormalities on MRI may occasionally be interpreted as metastatic disease if the radiologist is not familiar with the appearance of these imaging findings.…”
mentioning
confidence: 99%
“…На рентгено-граммах линии перелома могут остаться неза-меченными на фоне снижения плотности кост-ного вещества, особенно при суперпозиции газа в кишечнике. Кроме того, при обзорной рентге-нографии костей таза могут быть пропущены неполные переломы, которые отчетливо опреде-ляются при КТ в костном режиме: визуализация кортикального слоя кости позволяет выявить переломы, включая неполные [4,5] [2]. Визуализация симметричных изме-нений не должна вызывать сомнения в диагно-зе, так как остеопоротические переломы часто симметричны [14].…”
Section: рис 7 (unclassified
“…Визуализация симметричных изме-нений не должна вызывать сомнения в диагно-зе, так как остеопоротические переломы часто симметричны [14]. Остеосцинтиграфия имеет высокую чувствительность в выявлении пере-ломов с характерным H-образным накоплением РФП в крестце, представляющим собой двусто-ронние переломы боковых масс крестца, а так-же служит ценным скрининговым методом, вы-являющим повреждения костной ткани в ре-жиме «все тело» для дальнейшей детализации на КТ или МРТ [4,5]. Несмотря на высокую чув-ствительность сцинтиграфии и ОФЭКТ, недо-статком радионуклидного метода является низ-кая специфичность, что вызывает сложности в однозначной трактовке выявляемых очагов ги-перфиксации РФП [15,16].…”
Section: рис 7 (unclassified
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