Diseases of pharynx

1. Diseases of the Pharynx

2. Pharynx is a muscular tube that connects the nasal
cavity to the larynx and oesophagus.
• Extend from skull base to the inlet of
esophagus (level of C4)
Common passage of respiratory and
digestive tract

3. Anatomy of pharynx
• The muscles of the pharynx consist of the circular fibers of the constrictor
muscles that surround the longitudinally running fibers of the
stylopharyngeus, salpingopharyngeus, and palatopharyngeus Medial muscles.

5. • The surface of nasopharynx is covered by the same pseudostratified columnar
epithelium that is found in the nasal cavity
• The oropharynx and pharynx proper
lined by largely non-keratinizing stratified squamous epithelium.

6. Diseases of pharynx
Neoplastic
Malignant
Benign
Non
neoplastic

7. Congenital anomalies
• Cystic lesions
Thornwaldt cysts : are midline nasopharyngeal cysts that are thought to arise
from obstruction at the Thornwaldt bursa, at the junction of the remnants of
the notochord and the pharyngeal ectoderm