Bickerstaff's encephalitis is a rare inflammatory disorder of the central nervous system, first described by Edwin Bickerstaff in 1951. It may also affect the peripheral nervous system, and has features in common with both Miller Fisher syndrome and GuillainâBarrÃ© syndrome. 1  1 Signs and symptoms.  2 Pathophysiology.
Pathophysiology. Tears are produced in the lacrimal gland and drain through the upper and lower puncta into the canaliculi and then into the lacrimal sac and nasolacrimal duct (see Figure: Anatomy of the lacrimal system. ). Obstruction of tear drainage can lead to stasis and infection.
The Lacrimal System Lynn E. Lawrence, CPOT, ABOC, COA, OSC Terms â¢ Etiology âthe cause of a disease or abnormal condition â¢ Dacryocystitisâinflammation of the lacrimal sac â¢ Epiphora âwatering of eyes due to excess secretion of tears or obstruction of the lacrimal passage