We report an unusual case of bulimia nervosa with bilateral swelling o
f parotid and submandibular glands as the only symptom of the underlyi
ng behavioural disorder. Histologically, sialadenosis was diagnosed in
a parotid biopsy. The parotomegaly in bulimia may be a diagnostic pri
mer as these patients often deny their eating disorder. B-scan ultraso
nography is an important diagnostic tool to assess the nature of the p
arotid enlargement. Hyperamylasaemia occurs commonly in bulimic patien
ts and may help to confirm the diagnosis. All patients with suspected
bulimia should have a thorough medical history and physical examinatio
n to rule out other aetiologies of asymptomatic parotid swelling. As t
he enlargement is usually transient surgical intervention is only rare
ly required.