Multimodality imaging in diagnosis and management of alveolar echinococcosis: an update

Bulakçı, Mesut; Kartal, Merve Gülbiz; Yılmaz, Sabri; Yılmaz, Erdem; Yılmaz, Ravza; Şahın, Dilek; Aşık, Murat; Erol, Oğuz Bülent

doi:10.5152/dir.2015.15456

Cited by 58 publications

(68 citation statements)

References 51 publications

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“…As a conventional imaging method, MRI is complimentary to CT in evaluating the invasion by AE in the abdominal and musculoskeletal systems, and more important, in the central nervous system. Although it is helpful in the determination of non-calcified suspicious lesions, MRI is not as successful as CT in showing calcifications pathognomonic for AE [ 15 ]. Magnetic resonance elastography (MRE) is a noninvasive MRI-based technique for quantitatively assessing the mechanical properties of tissues in vivo , and is used for diagnosis and staging of liver fibrosis [ 5 ].…”

Section: Discussionmentioning

confidence: 99%

Comparison of Intravoxel Incoherent Motion Diffusion-Weighted Magnetic Resonance (MR) Imaging to T1 Mapping in Characterization of Hepatic Alveolar Echinococcosis

2017

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BackgroundThe aim of this study was to compare intravoxel incoherent motion diffusion-weighted magnetic resonance imaging (IVIM DW MRI) to T1 mapping for characterization of hepatic alveolar echinococcosis (HAE).Material/MethodsEighteen HAE patients confirmed by surgery were examined with conventional MRI, IVIM DWI MRI with 10 b values (range: 0–1,000 sec/mm2), and longitudinal relaxation time (T1) mapping. Diffusion coefficient (D), perfusion fraction (f), pseudo-diffusion coefficient (D*), and T1 relaxation time were calculated in solid components, perilesional components, and background liver parenchyma of HAE patients. The correlation between T1 relaxation time and IVIM-derived parameters was assessed by using the Pearson correlation test.ResultsT1 relaxation times were significantly higher in solid components (820.58±331.24 ms) compared to background components (551.52±182.93 ms) of HAE patients (p<0.05). IVIM-derived D values were significantly higher in solid components (1.30±0.28×10−3 mm2/sec) compared to perilesional components (0.88±0.28×10−3 mm2/sec) and background liver parenchyma (0.97±0.27×10−3 mm2/sec) of liver parenchyma. There were significant differences in f values between solid components (13.70±7.66%), perilesional components (23.59±10.73%) and background liver parenchyma (30.78±10.18%). IVIM derived D* values were significantly lower in solid components (14.32±10.85×10−3 mm2/sec) than in background liver parenchyma (30.06±15.68×10−3 mm2/sec). Importantly, IVIM-derived f values were significantly correlated with T1 relaxation time: r=−0.337 (p<0.05).ConclusionsBased on our image comparison, IVIM DWI MRI might be better than T1 mapping, and IVIM-derived f values might be a valuable index for characterization of HAE.

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Section: Discussionmentioning

confidence: 99%

Comparison of Intravoxel Incoherent Motion Diffusion-Weighted Magnetic Resonance (MR) Imaging to T1 Mapping in Characterization of Hepatic Alveolar Echinococcosis

2017

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“…However, how could echinococcosis be mistaken for second cancer in this patient? AE generally shows characteristic morphologic features in ultrasound, CT, and MRI; however, in some rare cases, both morphology and anatomic location can mimic malignant cancer [ 15 ]. In our case, the major lesion appeared to be in the adrenal gland, which is an extremely rare primary lesion for AE.…”

Section: Discussionmentioning

confidence: 99%

A Rare Differential Diagnosis of an Adrenal Mass: A Case Report

Seidel¹,

Pless²,

Michel³

et al. 2017

Case Rep Oncol

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Ten years after his last treatment for diffuse large B-cell lymphoma, a seemingly healthy, 64-year-old man presented for his lymphoma-related follow-up. Ultrasound revealed an impressive tumor in the right adrenal gland. Due to recurrent cancer therapies in the past, this seemed highly suspicious of a second malignancy, such as primary adrenal carcinoma. Surprisingly, histology disclosed a very different but rare cause for this pseudotumorous lesion.

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“…Conventional radiography can be required as the initial imaging modality to diagnose thoracic and bone involvement. The X-ray findings are nonspecific and are visualized as multiple small opacities [14].…”

Section: Imagingmentioning

confidence: 99%

“…The radiologist should be familiar with multimodality imaging findings of this particular disease. Thus, according to the organ involvement, the lesion can be confused with other differential diagnosis including neoplasms, metastatic neoplasms, or abscess [14].…”

Section: Imagingmentioning

confidence: 99%