Presumed ocular toxoplasmosis presenting as papillitis.

Unilateral papillitis is a rare manifestation of ocular toxoplasmosis. However, other causes of papillitis need to be ruled out before concluding the diagnosis.

Limited Wegener's granulomatosis presenting as multiple retinal vascular occlusions.

In the early stages of Wegener's granulomatosis, and in the atypical forms, the classic clinicopathologic features of the disease are often absent, delaying diagnosis. Recognition of the disease and its variant is aided by serological markers.