Horner Syndrome After Tonsillectomy: An Anatomic Perspective

BACKGROUND: Homer syndrome after tonsillectomy has been reported rarely in the literature. Furthermore, postoperative Homer syndrome lasting more than a 1 month is an even more rare occurrence. PATIENT: We present a persistent postoperative Homer syndrome in a 5-year-old child following tonsillectomy. RESULTS: Clinical diagnosis of Homer syndrome is confirmed pharmacologically, and damage to the oculosympathetic pathway at the level of the superior cervical ganglion is radiographically demonstrated. CONCLUSION: Conventional monopolar electrosurgical dissection led to irreversible damage of ganglionic neural tissue at the level of the palatine tonsilar fossa and permanent Homer syndrome.