A six-month old bitch presenting a sub-lingual mucocele and hematoma associ
ated with coagulation disorders died four days after the surgical treatment
of the mucocele. The necropsy revealed a canine angiostrongylosis, a disea
se rarely seen in Switzerland. This article summarizes the biology of Angio
strongylus vasorum and describes the lesions and symptoms caused by this ca
rdio-pulmonary helminthosis, as well as its diagnosis and treatment. The co
nnections between angiostrongylosis and coagulation disorders are also disc
ussed.