PMC5362864_01
(a) Marked periorbital swelling, exophthalmos and prolapse of the nictitating membrane (OD), and (b) oral cavity swelling in the right pterygopalatine fossa at the junction of the soft and hard palate
10.1177_2055116915589836-fig1.jpg
PMC5362864_01_10.1177_2055116915589836-fig1.jpg
fig1-2055116915589836
On physical examination at referral the cat had unilateral exophthalmos (OD) with prolapse of the nictitating membrane, conjunctival hyperaemia and periorbital soft-tissue swelling (Figure 1). A soft tissue swelling was observed in the oral cavity in the right pterygopalatine fossa at the junction of the soft and hard palate and medial to M1 (Figure 1).
(a,b) Cytological preparations of excised retrobulbar tissue showing numerous tangles of wide-branching bacterial filaments in necrotic tissue that were gram positive (Burke's modification) and (c) stained with a modified Wright-Giemsa stain (Diff-Quik)
10.1177_2055116915589836-fig2.jpg
PMC5362864_01_10.1177_2055116915589836-fig2.jpg
fig2-2055116915589836
Crush preparations of the retrobulbar tissue were stained with modified Wright-Giemsa (Diff-Quik; Dade Behring) and Burke's modification of the Gram stain to reveal numerous tangles of wide gram-positive branching bacterial filaments and scattered macrophages in necrotic tissue (Figure 2).