MBSS

Question 1

MBSS contrast

Answer 1

Barium or visipaque

Question 2

MBSS anatomy

Answer 2

Nasopharynx = from skull base to soft palate; respiratory function only

Oropharynx = from soft palate to hyoid bone; anterior border is the base of the tongue

[ Valleculae ] : 2 symmetric pouches formed in the recess between the base of the tongue and epiglottis

Hypopharynx/Laryngopharynx = from hyoid bone to the cricopharyngeus muscle

Epiglottis and aryepiglottic folds separate larynx from OP and HP

[ Piriform sinuses ] : deep, symmetric lateral recesses formed by the protrusion of the larynx into the hypopharynx

Question 3

MBSS complimentary imaging techniques

Answer 3

MR (better than CT) to evaluate nasopharynx