Benign tumour

of the larynx
Benign tumour
Papillomas
1. Single papilloma: seen in adult arise usually from the vocal cord as a sessile or pedunculated mass, May have recurrence after removal and have risk of change to malignancy.
2. Multiple papillomas are the usual type in children may be due to human papilloma virus; no risk of malignancy but recurrence is common, regression occur at puberty.
There is no histological difference between two types.
Clinical features:
Either silent or present with hoarseness of voice or stridor
Malignant tumour
Mostly squamous cell carcinoma others may include adenocarcinoma,or connective tissue tumour.
Squamous cell carcinoma.
Grading; well differentiated ,moderately differentiated and poorly differentiated
Clinical types, ulcerative or proliferative
Types:
?Supraglottic carcinoma
Area of supraglottis comprises the larynx superior to the apex of ventricle .It includes the ventricle, vestibular folds.arytenoids,aryepiglottic folds and the epiglottis (laryngeal surface, tip and lingual surface).
It has rich lymphatic drainage and the tumour spread either locally to base of tongue, glottis and pharynx or to the upper deep cervical lymph node
Glottic carcinoma
This comprises the vocal cords and the posterior and anterior commissures.
Spread either locally to subglottis or supraglottis and rarely to lymph nodes (4%) because no lymph drainage in this area.