PMC6243312_01
Transverse grayscale (B-mode) ultrasound image showing hypo- to isoechoic lesion on the head of the pancreas.
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fig1
On ultrasound (Figure 1), the lesion was iso to hypoechoic when compared with liver echogenicity and located on the head of the pancreas.
Non-contrast CT scan shows a well-circumscribed focal lesion (arrow) on the pancreatic head, measuring 35 x 35 x 19 mm and with a density of -106 Hounsfield units, consistent with fatty tissue.
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fig2
Contrast-enhanced CT scan shows a homogeneous focal mass (arrow) on the pancreatic head. The mass was isodense with fatty tissue and interlobular septa, and without central or peripheral contrast enhancement (arrow).
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fig3
(a) Axial T2 and (b) T1 weighted MRI showing a hyperintense lobulated mass (arrows) on the head of the pancreas.
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fig4
T2 (Figure 4a), T1 (Figure 4b) and T1 fat-suppressed images (Figure 5) were taken.
Axial T1 weighted fat-suppressed sequence showing suppression of T1 hyperintensity (black arrow) within the lesion, suggesting a lesion of fatty nature.
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fig5
T2 (Figure 4a), T1 (Figure 4b) and T1 fat-suppressed images (Figure 5) were taken.