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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 3 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 3

From: Value of diffusion-weighted magnetic resonance imaging (DWI) in differentiating orbital lymphoma from idiopathic orbital inflammatory pseudotumor

Fig. 3

A 13-year-old male with acute pan-sinusitis; presented with right-sided dull aching orbital pain, mild proptosis and limited orbital gaze. Axial T1 image (A) shows diffusely enlarged right superior and medial recti with mild haziness of the right intraconal retro bulbar fat. Axial T2 image (B) shows diffuse enlargement of the right superior and medial recti muscles with mild hyperintense signal. No diffusion weighted restriction seen on DWI (b500) image (C) and ADC (D). The ADC value is 1.34 × 10−3 mm2/sec. Right-sided orbital inflammatory pseudotumor, Myositic type. Therapeutic trial with corticosteroids was done and the patient relieved after 5 weeks

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