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Fig. 8 | Insights into Imaging

Fig. 8

From: Orbital lymphoma: imaging features and differential diagnosis

Fig. 8

Common extra-conal mass-like lesions are shown: a There is marked hypointensity signal on T2-weighted imaging, which involves retrobulbar space and it seems to extend into orbital fissure (red arrows). These imaging findings were in keeping with pseudotumour inflammatory. b Patient with thyroid orbitopathy disease presented thickened muscles like the inferior rectus muscle (red asterisks). Prominent intra-conal fat was identified on this coronal reconstruction of non-contrast CT scan. c Metastatic melanoma shows a large mass with involvement of bony structures such as destruction of orbital plate of ethmoidal bone (dashed red line) and occupation of ethmoidal cells. Marked heterogeneous enhancement is seen on this axial contrasted CT scan. d Patient with exophthalmos and pathology diagnosis of lacrimal gland adenocarcinoma presents: ill-defined mass with medial and inferior displacement of the eyeball. Microcalcifications (red circled) are noted on non-contrast axial CT scan

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