Vocal cords paralysis
Features of laryngeal Ca: (DNB Dec 2011)
|A||Glottis is the MC site|
|B||Commonly metastasizes to cervical lymph node|
|C||Lesions seen at the edge of the vocal cord|
|D||Laryngeal compartments acts as barrier|
Ref. Dhingra 5th/d p 302,327; 6th/ed p 308, 309; Tuli 7 st/ed p 370; Mohan Bansal pp 502,503-
a. As discussed previously, larynx is divided into supraglottic, glottic and subglottic regions for the purpose of anatomical classification of carcinoma of larynx.
b. It is an important division and is based on lymphatic drainage.
c. The area above the vocal cords . supraglottis drains upwards via the superior lymphatics to upper deep cervical group of lymph nodes.
d. Vocal cords, i:e glottis has practically no lymphatics so, it acts as a watershed.
e. The area below the glottis, (subglottis) drain to prelaryngeal and paratracheal glands and then to lower deep cervical nodes. Hence option band d are both correct