HEAD-AND-NECK

“CHRONIC SINUSITIS”

“ Air-fluid levels and mild mucosal thickening is only indicative with a relevant history. Usually a viral aetiology. Complications of sinusitis include polyps, mucous retention cyst and mucocele. CT •  Opacification of the sinus/mucosal thickening.•  Sinus expands and bone remodels (bony wall may thin due to pressure necrosis).•  Peripheral enhancement.•  Complete absence of air in …

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“LARYNGEAL MALIGNANCY”

“ Associated with smoking and alcohol. In total, 90% are squamous cell carcinomas (SCCs), rarely adenoid cystic carcinomas (these characteristically invade the recurrent laryngeal nerve). Most laryngeal tumours (60%) are glottic—these tend to be small at diagnosis and have a good prognosis. Supraglottic tumours are often large when diagnosed. Subglottic tumours often represent tumour extension …

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“FUNGAL SINUSITIS”

“ Mostly from aspergillus or mucormycosis. CT •  Bone erosion is seen with allergic sinusitis—look for polyps.•  Extension outside the sinus without bone erosion is known as invasive sinusitis—this is more common with immunocompromise and diabetes.” For Radiology Cases, Discussion join: Radiology Made Easy on Facebook  Subscribe to our youtube channel for FRCR radiology case …

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PATHOLOGICAL LYMPH NODES IN THE HEAD AND NECK

“•  Positron emission tomography (PET)/computed tomography is highly sensitive for diagnosis and follow-up of head and neck cancer.•  Standardised uptake value (SUV) is a measure of the relative activity of a lesion on PET, adjusted according to dose given and patient size. SUV >3 is pathological.•  In patients with head and neck cancer, a single ipsilateral …

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“MUCOEPIDERMOID CARCINOMA”

“ This is the most common malignant salivary gland primary. It is a high-grade tumour. CT •  Heterogeneous, enhancing mass with cystic areas•  Spreads along the VII nerve MRI •  Low signal on T1, heterogeneous on T2•  Early involvement of nodes—jugulodigastric (level II) first ” For Radiology Cases, Discussion join: Radiology Made Easy on Facebook  …

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“WEGENER GRANULOMATOSIS”

“ Think of this when there is involvement of the nasal cavities, paranasal sinuses and the orbits. Carcinoma is the principal differential. CT •  Nasal septal perforation•  Bony erosion•  Soft tissue mass” For Radiology Cases, Discussion join: Radiology Made Easy on Facebook  Subscribe to our youtube channel for FRCR radiology case discussion  Join our Telegram …

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