“ This is a posterior nasopharyngeal cyst. It is common and benign. It is filled with proteinaceous material that will intermittently discharge its contents, causing halitosis and a bad taste. They rarely become infected. CT• High-attenuation (due to protein content) nasopharyngeal cyst MRI • Thin-walled cyst• High signal on T1 and T2 (protein content)• No …
“ In total, 80%-90% are SCCs. It is often clinically silent or may present with an obstructive sinusitis and bone destruction. Esthesioneuroblastoma is a destructive tumour arising from the olfactory nerve/neurosensory cells of the nasal mucosa and often invades the anterior cranial fossa. CT • Soft tissue lesion typically at the fossa of Rosenmuller ” …
“• Carotid body tumour• Hypervascular lymph nodes• Schwannoma” For Radiology Cases, Discussion join: Radiology Made Easy on Facebook Subscribe to our youtube channel for FRCR radiology case discussion Join our Telegram group: Radiology Made Easy
“ This may be due to causes including iatrogenic (postoperative/intubation), trauma, thyroid/parathyroid neoplasm, lymphadenopathy and tumour. CT • Look for medialisation of the arytenoid and adduction of the vocal cord with resulting enlargement of the ipsilateral piriform sinus.• Atrophy of the cricothyroid muscle.• Absent thyroid (e.g. post-thyroidectomy).” For Radiology Cases, Discussion join: Radiology Made Easy …
“• Peripheral enhancement/central necrosis• Extracapsular spread• Conglomerate nodal masses• Round shape, heterogeneous” For Radiology Cases, Discussion join: Radiology Made Easy on Facebook Subscribe to our youtube channel for FRCR radiology case discussion Join our Telegram group: Radiology Made Easy
“ This is the most common benign nasopharyngeal tumour. The typical scenario is a teenaged boy with epistaxis. These are highly vascular tumours and can be locally aggressive. CT • Densely enhancing mass involving the nasal wall, retromaxillary or pterygopalatine fossa.• Widening of the pterygopalatine fossa in 90%—pathognomonic.• Erosion of the medial pterygoid plate is …
“ This is the most common carcinoma of the minor salivary glands. MRI • Small lesion with poor encapsulation• Spreads along the VII nerve” For Radiology Cases, Discussion join: Radiology Made Easy on Facebook Subscribe to our youtube channel for FRCR radiology case discussion Join our Telegram group: Radiology Made Easy
This is a retention cyst arising from the sublingual gland. The space; the diving type extends to the submandibular space. For Radiology Cases, Discussion join: Radiology Made Easy on Facebook Subscribe to our youtube channel for FRCR radiology case discussion Join our Telegram group: Radiology Made Easy
“• Childhood neck masses are benign in 90%; malignancy in this age group is most likely rhabdomyosarcoma or lymphoma.• 90% of adult neck masses are malignant. In those aged <40 years, lymphoma is most likely, and in those aged >40 years, metastasis is most likely.” For Radiology Cases, Discussion join: Radiology Made Easy on Facebook Subscribe to …
DIFFERENTIAL OF NECK MASSES IN CHILDREN AND ADULTS Read More »
“ The rule of 80%: pleomorphic adenoma accounts for 80% of benign parotid tumours, 80% of pleomorphic adenomas occur in the parotid and 80% occur in the superficial lobe. Up to 20% undergo malignant degeneration. US • Hypoechoic multiloculated mass Sialogram • Clawed fist appearance CT • Well-defined, homogeneous mass that is slightly higher attenuation …