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문석균 외 중앙대학교 의과대학 의학연구소 2006 中央醫大誌 Vol.31 No.4
Nasolabial cysts are rare benign lesions that occur in the nasal alar region. They probably arise either from the anlage of the nasolacrimal duct system or as epithelial inclusion cysts trapped between the merging nasal and maxillary processes of the developing facial skeleton. They has been usually presented as a smooth, mobile, soft tissue mass between the upper lip and nasal aperture, producing protrusion of the upper lip, elevation of the nasal ala and inferior turbinate, effacement of the nasolabial fold. Slow painless enlargement of these lesions may be noted over several years, or they may present with more sudden, painful swelling when infected. The lesions are extraosseous, but scalloping of the underlying bone may be seen. The treatment of choice is surgical resection by intraoral sublabial approach. We report, with a review of literature, a case of nasolabial cyst which involves left alveolus, hard palate and extends into right premaxillary area.
Seog-Kyun Mun,Young-Ho Hong,Sung-Nam Hwang,강석형 대한신경외과학회 2010 Journal of Korean neurosurgical society Vol.48 No.11
A 57- year-old man presented to the outpatient department with sudden bilateral hearing loss. The otological examination suggested bilateral severe sensorineural hearing loss. After several hours, the patient complained of a headache and became drowsy. The brain computed tomography showed a 3 x 4 cm intracerebral hemorrhage (ICH) of the left temporal lobe. Surgery was performed and 34 days after the procedure the patient was discharged from the hospital with severe bilateral sensorineural hearing loss (SNHL). Temporal lobe ICH should be considered in the differential diagnosis of patients with sudden bilateral hearing loss, regardless of the other neurological symptoms.
Mun, Seog-Kyun,Hong, Young-Ho,Kang, Suk-Hyung,Hwang, Sung-Nam The Korean Neurosurgical Society 2010 Journal of Korean neurosurgical society Vol.48 No.5
A 57-year-old man presented to the outpatient department with sudden bilateral hearing loss. The otological examination suggested bilateral severe sensorineural hearing loss. After several hours, the patient complained of a headache and became drowsy. The brain computed tomography showed a $3{\times}4\;cm$ intracerebral hemorrhage (ICH) of the left temporal lobe. Surgery was performed and 34 days after the procedure the patient was discharged from the hospital with severe bilateral sensorineural hearing loss (SNHL). Temporal lobe ICH should be considered in the differential diagnosis of patients with sudden bilateral hearing loss, regardless of the other neurological symptoms.
문석균(Seog-Kyun Mun),이광호(Kwang-Ho Lee),도윤경(Youn-Kyoung Do),홍영호(Young-Ho Hong) 대한두개저학회 2008 대한두개저학회지 Vol.3 No.2
Inflammatory pseudotumor is a unique clinico-pathological entity which is characterized by an insidious, chronic and progressive inflammatory process damaging surrounding structures. Most commonly it occurs in the lungs and orbit, while skull base is rare site of involvement. It is seen in any decades and a male preponderance has been noted. Clinical feature of this tumor is an intermittent dull pain, gradually increasing in severity. Also according to the involved sites, various symptoms can be developed. Histologic examination reveals a non-specific inflammatory reaction without the presence of tumor cells. The treatment of choice is systemic steroid therapy, but radiation therapy and immunosuppressive therapy appear to be helpful. Recently the authors experienced a case of extensive inflammatory pseudotumor involving skull base, which was cured by high dose steroid therapy. Hence, we report a rare case with a review of literature.
Jun Ki Hong,Sun Hye Shin,Seog Kyun Mun,김범준 대한의학레이저학회 2022 MEDICAL LASERS Vol.11 No.3
Hyaluronic acid (HA) is the most commonly used filler biomaterial worldwide because of its safety, longevity, lack of immunogenicity, and biodegradability. In addition, HA is not specific to any organ or species, and there is a relatively low risk of an allergic or immunogenic reaction at the injection site. On the other hand, skin discoloration after a HA filler injection can increase for three reasons, including the Tyndall effect, neovascularization, and hyperpigmentation. This paper presents a case of skin discoloration after an injection of HA filler in the nasolabial fold with an unusual progress pattern.
KIM, DAEHWAN,KIM, SO YOUNG,MUN, SEOG KYUN,RHEE, SANGMYUNG,KIM, BEOM JOON UNKNOWN 2015 INTERNATIONAL JOURNAL OF MOLECULAR MEDICINE Vol.35 No.4
<P>Epidermal growth factor (EGF) plays a critical role in fibroblasts by stimulating the production of collagen and supports cell renewal through the interaction between keratinocytes and fibroblasts. It is well known that the contractile activity of fibroblasts is required for the remodeling of the extracellular matrix (ECM), which contributes to skin elasticity. However, the role of EGF in the contraction of aged fibroblasts under 3-dimensional (3D) culture conditions is not yet fully understood. In the present study, we demonstrated that young fibroblasts spread and proliferated more rapidly than aged fibroblasts under 2-dimensional (2D) culture conditions. Cell migration assay using a nested collagen matrix revealed that the migration of young fibroblasts was also greater than that of aged fibroblasts under 3D culture conditions. However, the addition of recombinant human EGF (rhEGF) resulted in the enhanced migration of aged fibroblasts; the migration rate was similar to that of the young fibroblasts. The aged fibroblasts showed decreased cluster formation compared with the young fibroblasts on the collagen matrix, which was improved by the addition of rhEGF. Furthermore, cell contraction assay revealed that the basal contractility of the aged fibroblasts was lower than that of the young fibroblasts; however, following treatment with rhEGF, the contractility was restored to levels similar or even higher to those of the young fibroblasts. Taken together, our results suggest that rhEGF is a potential renewal agent that acts to improve the migration and contraction of aged fibroblasts more efficiently than young fibroblasts under 3D culture conditions; thus, EGF may have valuable regenerative effects on aged skin.</P>
Leptomeningeal Carcinomatosis of Gastric Cancer Misdiagnosed as Vestibular Schwannoma
Kim, Shin-Jae,Kwon, Jeong-Taik,Mun, Seog-Kyun,Hong, Young-Ho The Korean Neurosurgical Society 2014 Journal of Korean neurosurgical society Vol.56 No.1
Gastric cancer is one of the most common causes of cancer-related death in Asian countries, including Korea. We experienced a case of leptomeningeal carcinomatosis (LC) from gastric cancer that was originally misdiagnosed as vestibular schwannoma based on the similar radiological characteristics. To our knowledge, LC from gastric cancer is very rare. In conclusion, our experience with this case suggests that clinicians should consider the possibility of delayed leptomeningeal metastasis when treating patients with gastric cancer.