Answer B — Image Quiz: A recurrent, painful ear infection
Answer B: Staphylococcus pseudintermedius — Incorrect
Staphylococcus pseudintermedius is a coccoid gram-positive bacterium often detected on canine skin. However, cytologic examination in this case revealed rod-shaped bacteria. Additionally, staphylococcal infection does not often trigger the amount of ulceration and pain detected in this patient.