Secondary polymicrobial infection of a giant nasal pyogenic granuloma with Pasteurella multocida: A case report.

Pyogenic granuloma is a benign vascular lesion that sometimes originates from the inferior turbinate. We report a case of a 57-year-old man with a pyogenic granuloma arising from the right inferior turbinate that caused secondary sinusitis with symptoms resembling chronic rhinosinusitis. The patient had a domestic cat and frequently allowed the cat to lick his face. Endoscopic examination revealed a large nasal lesion covered with purulent exudate, and the lesion was surgically resected at its pedicle. Tissue culture yielded Pasteurella multocida and Group G Streptococcus, indicating secondary polymicrobial infection of the pyogenic granuloma. The patient recovered without postoperative complications. This case highlights an unusual secondary infection of a nasal pyogenic granuloma with the zoonotic pathogen P. multocida following close contact with a domestic cat.