A previously healthy 12-year-old boy presented to an outside hospital for fever, headache, and unilateral red eye with periorbital edema. He received oral trimethoprimsulfamethoxazole and 2 days of intravenous clindamycin phosphate and ceftriaxone sodium. On transfer to our institution for failure to improve and concern for orbital cellulitis, results of examination by the ophthalmology service revealed a unilateral hemorrhagic conjunctivitis without orbital signs, and computed tomography showed mild preseptal edema. The patient was discharged with a tentative diagnosis of viral conjunctivitis.Three days later, the patient returned with fever, prominent submandibular lymphadenopathy, and ipsilateral granulomatous conjunctivitis (Figure). Results of the remainder of the anterior segment and dilated examination were unremarkable. Results of laboratory tests revealed elevated inflammatory markers (C-reactive protein level, 9.47 mg/dL [to convert to nanomoles per liter, multiply by 9.524], and erythrocyte sedimentation rate, 48 mm/h), neutrophilic leukocytosis, and normocytic anemia. Additional history revealed that the boy had handled a bloody raccoon carcass without gloves several days before initial presentation. The pediatrics service planned to restart antibiotic therapy.
Diagnosis
Oculoglandular tularemia
What to Do Next
D. Perform serologic testing for Bartonella henselae and Francisella tularensis
DiscussionThe patient presented with hallmark features of Parinaud oculoglandular syndrome. Cat-scratch disease is the most classic cause of this syndrome. The differential diagnosis is broad, however, and includes infections, such as tuberculosis, syphilis, listeriosis, mumps, Epstein-Barr virus, sporotrichosis, and tularemia, along with noninfectious causes, such as sarcoidosis, leukemia, and lymphoma. Of