Brainstem infarcts include pontine infarcts, and it is impossible to compare which is more serious.
Anatomically, the brainstem can include the midbrain, pons, and medulla oblongata.
Pontine infarcts can present with hemiparesis, speech problems, dizziness, and hemiplegia. Brainstem infarction can include midbrain infarction, pontine infarction and medulla oblongata infarction, which may present with dysphagia, dysphonia, quadriplegia, coma, high fever, and even respiratory dysfunction.
Both brainstem infarction and pontine infarction may present with more severe symptoms and leave significant sequelae. If you suspect brainstem infarction or pontine infarction, you should go to the hospital in time.