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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 1 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 1

From: Acute presentation of locally advanced squamous cell carcinoma of frontal sinus—imaging findings of a rare entity: case report

Fig. 1

A 55-year-old male patient with a histopathologically proven frontal sinus squamous cell carcinoma. Contrast-enhanced CT head shows large heterogeneously enhancing right frontal sinus tumour (small white arrows; A), intraorbital extension with invasion of superior rectus muscle (small red arrow; A) and invasion of right ethmoid air cells (large red arrow). Intracranial extension of tumour (C). Loss of bony roof of right orbit (C) and large bony defect at posterior wall of sinus (B). Sphenoid sinus shows chronic osteitis changes (D)

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