Nose Pathology Flashcards
What are nasal polyps normally lined with?
respiratory epithelium
What could indicated that a nasal polyp is metaplastic?
if it is lined with squamous
What nasal symptoms does GPA present with?
congestion
septal perforation
multinucleated giant cells on histology
What are the benign tumours of the nose?
squamous paillomas
schneiderian papillomas
angiofibromas
What are the malignant tumours of the nose?
squamous cell carcinomas
What increases risk of sqamous cell carcinomas of the nose?
male
smoking
What are the 3 types of schneiderian papillomas? What type is the most common?
inverted - most common
exophytic
oncocytic
What populations are at most risk of schneiderian papillomas?
over 50
males
What can cause schneiderian papillomas?
HPV
smoking
organic solvents - welding
What is the main symptom of schneiderian papillomas?
blocked nose
Where do inverted and oncocytic schneiderian papillomas affect?
lateral walls and paranasal sinuses
Where do exophytic schneiderian papillomas affect?
nasal septum
Where are nasopharyngeal carcinomas common?
Far East
What are nasopharyngeal carcinomas associated with?
Epstein Barr Virus
volatile nitrosamines in food
formaldehyde
What are the histological signs of nasopharyngeal carcinomas?
keratinising or non keratinising squamous cells
