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임상권,송미현,구자원,심대보 대한평형의학회 2019 Research in Vestibular Science Vol.18 No.4
Down-beat nystagmus in peripheral vestibulopathy may rarely occur in selective involvement of inferior division. Diagnosis of isolated inferior vestibular neuritis is based on torsional down-beating spontaneous nystagmus, abnormal head-impulse test for the posterior semicircular canal, and abnormal cervical vestibular evoked myogenic potentials (cVEMPs) with normal bithermal caloric tests and ocular vestibular evoked myogenic potentials (oVEMPs). Herein we report a 50-year-old male patient with spontaneous down-beat nystagmus who demonstrated vestibular dysfunction involving only the posterior semicircular canal. The patient showed normal results in the bithermal caloric test, the oVEMPs and cVEMPs test. Video head impulse test showed decreased gain and corrective saccades only in the posterior semicircular canal. This case is significant in showing that peripheral dizziness with spontaneous down-beating nystagmus can occur as a result of an abnormality involving only a single semicircular canal.
강진욱,임상권,송창은,정수영 대한이비인후과학회 2019 대한이비인후과학회지 두경부외과학 Vol.62 No.12
Myoepithelioma is a rare benign tumor, most frequently located in the salivary gland. However,involvement of an extra-salivary gland is even rarer and very few cases involving the nasalcavity have been reported in the literature. A 51-year-old female patient presented with a complaintof progressive nasal obstruction and occurrence of recurrent epistaxis in the left nasalcavity over several months. A hemorrhagic and erythematous mass occupying the left nasalcavity was observed on physical examination using a nasal endoscope. A preoperative angiogramconfirmed that he tumor was receiving blood supply from the sphenopalatine artery. Weperformed embolization to prevent hemorrhage during surgery; one day later, the lesion wassuccessfully removed through endoscopic excision. Histopathological examination revealedthat the tumor contained myoepithelial cells and myxoid stroma. Immunohistochemical studiesshowed that the tumor was positive for cytokeratin marker and S-100 protein, confirmingthe diagnosis of myoepithelioma. The patient recovered without any nasal symptoms or postoperativedeficits.
문영민,정수영,임상권,이규만 대한이비인후과학회 2022 대한이비인후과학회지 두경부외과학 Vol.65 No.9
Actinomycosis is a rare acute-to-chronic bacterial infection caused by Actinomyces. A 7-yearoldhealthy girl presented with left-sided nasal obstruction and purulent discharge. She had nospecial medical or trauma history, and the symptoms developed gradually after severe vomitingone month prior to the visit. Nasal endoscopy revealed white-black-colored cheesy materialthat appeared as a foreign body or fungal material in the left nasal cavity. The lesion wascompletely removed endoscopically under local anesthesia. The patient was prescribed only atopical antibiotic ointment without any additional systemic antibiotics. She was diagnosedwith actinomycosis based on histopathological examination after a few days. There was no recurrenceat six months post-procedure. The common treatment for actinomycosis is surgicalremoval and a systemic antibiotic therapy. However, this case was successful with completesurgical removal and only a short-term topical antibiotic ointment therapy. Therefore, thetreatment for actinomycosis should differ based on clinical characteristics and the patient’scondition.