Introduction
Pathological laughing and crying (PLC) can be described as
uncontrollable episodes of laughing or crying that are triggered by a
stimulus that would not normally cause either
response.1 Patients with a lesion in the pons mainly
present with features of motor deficits, and associated cranial nerve
palsies. However, pathological laughter in a patient with a pontine
lesion is a very rare presentation. The disruption of a network of
cerebro-ponto-cerebellar pathways has been considered to be a possible
mechanism for such behavior. We report a case of pathological laughing
in a patient with pontine tumor.