Neoplasms of nasopharynx


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This presentation discusses neoplasms of nasopharynx

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Neoplasms of nasopharynx

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