https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/275 2026-04-04T16:13:46Z 2026-04-04T16:13:46Z Kim, Su-Jong Moon, Jee Won Lee, Heung-Man https://scholarworks.korea.ac.kr/kumedicine/handle/2021.sw.kumedicine/63488 2025-11-26T08:00:47Z 2025-11-01T00:00:00Z

Title: Huge Nasopalatine Duct Cyst Treated by Transnasal Endoscopic Marsupialization: A Case Report and Literature Review Authors: Kim, Su-Jong; Moon, Jee Won; Lee, Heung-Man Abstract: Nasopalatine duct cyst (NPDC) is the most common nonodontogenic cyst originating from the epithelial remnants of the incisive canal in the maxilla. NPDC is treated with complete enucleation via a sublabial or transpalatal approach, and recently tranasnasal endoscopic marsupialization has been gradually used. However, in large and extensive cases, it is difficult to remove the cyst completely, and there is a high risk of postoperative complications, including oronasal fistula. Therefore, tranasnasal endoscopic marsupialization is recommended as an effective treatment modality. Herein, we report a case of a 49-year-old man with a very large NPDC with a maximum diameter of 58 mm. NPDC was successfully managed by transnasal endoscopic marsupialization under general anesthesia without any major problems. No postoperative complications or recurrence occurred until 12 months postoperatively. Transnasal endoscopic marsupialization for large NPDC is minimally invasive and useful.

2025-11-01T00:00:00Z Cho, Yongmin Kim, Angela Y. Song, Jae-Jun Chae, Sung-Won https://scholarworks.korea.ac.kr/kumedicine/handle/2021.sw.kumedicine/64018 2024-12-14T02:00:37Z 2024-04-01T00:00:00Z

Title: Mucosa-associated Lymphoid Tissue Misdiagnosis as Glomus Tympanicum Authors: Cho, Yongmin; Kim, Angela Y.; Song, Jae-Jun; Chae, Sung-Won Abstract: Middle ear tumors are diverse, but relatively uncommon. The most frequent tumor in the middle ear is glomus tumor, followed by others such as schwannoma and cholesteatoma. We experienced a case of Mucosa-associated lymphoid tissue hyperplasia as a middle ear tumor. The mass behind tympanic membrane appeared a hypervascular tumor, mimicking a glomus tumor, but the form of multiple separate masses in middle ear and mastoid cavity was the distinguishing feature that set it apart from a glomus tumor. Additionally, another characteristic was its tendency to easily shrink under pressure. This characteristic should be considered when encounter a hypervascular looking middle ear mass. Laryngoscope, 2023

2024-04-01T00:00:00Z Yoon, Ho-Jin Lee, Sun-Uk Park, Euyhyun Choi, Jeong-Yoon Kim, Ji-Soo https://scholarworks.korea.ac.kr/kumedicine/handle/2021.sw.kumedicine/63720 2024-07-11T11:00:33Z 2024-04-01T00:00:00Z

Title: Ocular Flutter Evoked by Vestibular Stimulation Authors: Yoon, Ho-Jin; Lee, Sun-Uk; Park, Euyhyun; Choi, Jeong-Yoon; Kim, Ji-Soo Abstract: [No abstract available]

2024-04-01T00:00:00Z Yoon, Ho-Jin Lee, Jeong-Heon Lee, Joo-Hyeong Park, Euyhyun Lee, Sun-Uk Kim, Byung-Jo Kim, Ji-Soo https://scholarworks.korea.ac.kr/kumedicine/handle/2021.sw.kumedicine/64283 2024-07-11T10:00:23Z 2024-02-01T00:00:00Z

Title: Effects of pupil size in video head-impulse tests Authors: Yoon, Ho-Jin; Lee, Jeong-Heon; Lee, Joo-Hyeong; Park, Euyhyun; Lee, Sun-Uk; Kim, Byung-Jo; Kim, Ji-Soo Abstract: The results of video head impulse tests (video-HITs) may be confounded by data artifacts of various origins, including pupil size and eyelid obstruction of the pupil. This study aimed to determine the effect of these factors on the results of video-HITs. We simulated ptosis by adopting pharmacological dilatation of the pupil in 21 healthy participants (11 women; age 24-58 years). Each participant underwent video-HITs before and after pupillary dilatation using 0.5% tropicamide. We assessed the changes in the vestibulo-ocular reflex (VOR) gain, corrective saccade amplitude, and frequency of eyelid flicks. After pupillary dilatation, the VOR gain decreased for both right (RAC; 1.12 +/- 0.12 vs. 1.01 +/- 0.16, p = 0.011) and left anterior canals (LACs; 1.15 +/- 0.13 vs. 0.96 +/- 0.14, p < 0.001), and right posterior canal (RPC, 1.10 +/- 0.13 vs. 0.98 +/- 0.09, p = 0.001). The corrective saccade amplitudes also decreased significantly for all four vertical canals. The frequency of eyelid flicks, however, did not change. The changes of VOR gain were positively correlated with the lid excursion in RPC (r = 0.629, p = 0.002) and LPC (r = 0.549, p = 0.010). Our study indicates that eyelid position and pupil size should be considered when interpreting the results of video-HITs, especially for the vertical canals. Pupils should be shrunk in a very well-lit room, and artifacts should be prevented by taping or lifting the eyelids as required during video-HITs.

2024-02-01T00:00:00Z