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Neoplasms of nasopharynx,[object Object],Dr T Balasubramanian,[object Object]
Types of nasopharyngeal tumors,[object Object],Benign,[object Object],Malignant,[object Object],drtbalu's otolaryngology online,[object Object]
Benign tumors,[object Object],Juvenile nasopharyngeal angiofibroma (commonest),[object Object],Chondroma,[object Object],Dermoid,[object Object],Teratoma,[object Object],Hamartoma,[object Object],Epignathi,[object Object],Branchial cyst,[object Object],Rhabdomyoma,[object Object],Hemangioma,[object Object],Hemangiopericytoma,[object Object],Craniopharyngioma,[object Object],drtbalu's otolaryngology online,[object Object]
Chondroma,[object Object],This neoplasm is cartilaginous in origin,[object Object],Occurs in two forms – solitary / multiple,[object Object],Commonly arises from basiocciput / basisphenoid region,[object Object],Difficult to differentiate from its malignant counterpart chondrosarcoma,[object Object],Overlying mucosa is intact and non ulcerating,[object Object],drtbalu's otolaryngology online,[object Object]
Teratoma,[object Object],New growths derived from pleuripotent tissue,[object Object],It is composed of elements of all three germinal layers,[object Object],Also known as hairy polyp of nasopharynx,[object Object],Could be sessile / pedunculated,[object Object],Often seen protruding into the mouth,[object Object],Associated cranial anomalies – palatal fissures, hemicrania, anencephaly,[object Object],Polyhydramnios is common due to impaired swallowing,[object Object],drtbalu's otolaryngology online,[object Object]
Teratoma (contd),[object Object],Maternal serum alpha fetoprotein levels raised,[object Object],May demonstrate cystic and solid areas in CT / MRI imaging,[object Object],Areas of bone and tooth formation can be clearly seen in imaging,[object Object],drtbalu's otolaryngology online,[object Object]
Hamartoma,[object Object],These are simple congenital malformations,[object Object],Components of this tumor are derived from local tissue,[object Object],They appear as polypoidal masses,[object Object],They are firmer than inflammatory polypi,[object Object],Size ranges between 1-5 cms,[object Object],Tumor surface appears lobulated,[object Object],Histologically these tumors consist of proliferating epithelial elements,[object Object],drtbalu's otolaryngology online,[object Object]
Hamartoma (contd),[object Object],Hamartomas don’t infiltrate surrounding tissues (this feature differentiates it from adenocarcinoma),[object Object],Ciliated lining surface epithelium invaginates into the stroma of the mass,[object Object],Two types of hamatomas – epithelial & mesenchymal,[object Object],drtbalu's otolaryngology online,[object Object]
Craniopharyngeoma,[object Object],This is a type of pituitary adenoma,[object Object],This tumor is cystic in nature,[object Object],Histologically benign in nature,[object Object],May be sellar / suprasellar in its location,[object Object],Cyst contains brownish fluid with refractile cholesterol crystals,[object Object],drtbalu's otolaryngology online,[object Object]
Choristoma,[object Object],This is displacement of tissue during the course of its development causing it to appear in the neighboring organ,[object Object],Could be considered as a misplaced anlage,[object Object],It is so expansile that it can fill up the whole nasopharynx and may also extend up to the parapharyngeal space.,[object Object],drtbalu's otolaryngology online,[object Object]
JNA,[object Object],drtbalu's otolaryngology online,[object Object]
Nasopharyngeal carcinoma,[object Object],drtbalu's otolaryngology online,[object Object]

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