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Insights into Imaging
Fig. 8 | Insights into Imaging

Fig. 8

From: What's that smell? A pictorial review of the olfactory pathways and imaging assessment of the myriad pathologies that can affect them

Fig. 8

60-year-old male with neutropenic sepsis on a background of allograft bone marrow transplant for acute myeloid leukaemia. Coronal soft tissue CT a demonstrates “bubbly” aerated secretions within the maxillary sinuses and ethmoid air cells bilaterally suggestive of acute sinusitis. Hyperdense regions are indicative of inspissated secretions or fungal elements (arrowed). Axial soft tissue CT images b, c illustrate subtle abnormal soft tissue at the right orbital apex (short arrow, b) and the right pterygopalatine fossa (short arrow, c), which suggests trans-spatial spread of disease. Appearances are consistent with acute invasive fungal sinusitis. On the contralateral side, the normal fat within these spaces is preserved (long arrows in b and c). Axial T1W post-contrast (d), DWI (e), and ADC map (f) MRI sequences demonstrate a left inferior frontal lobe ring enhancing lesion with central diffusion restriction consistent with an intracranial abscess (arrowed)

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