1.A Case of Malignant Melanoma of the Choroid.
Tae Soo LEE ; Sang Mook KONG ; Moo Shik SOHN
Journal of the Korean Ophthalmological Society 1975;16(2):131-134
The authors have recently experienced a case of malignant melanoma of the choroid in a 34-year-old Korean house wife. The direct ophthalmoscopic finding was characterized by the presence of oval and round shaped, miliary to rice sized dark brown pigments in the surface of detached retina. Histopathologically the tumor cells were spindle B type. There were no extraocular extension and metaetasis. In addition to some clinical observations, a brief review of literature has been described.
Adult
;
Choroid*
;
Humans
;
Melanoma*
;
Retina
;
Spouses
2.Solitary Fibrous Tumor of the Meninges.
Tae Shik KONG ; Hyun Jin SON ; Ha Young CHOI ; Woo Sung MOON ; Myoung Ja CHUNG
Journal of Korean Neurosurgical Society 2001;30(12):1439-1442
Solitary fibrous tumor(SFT) is a spindle cell neoplasm that usually arises in the pleura. Its involvement of the meninges is rare but increasingly being reported. Our case was a 33-year-old man who presented with clonic seizure around the right mouth angle and sensory disturbance at the right hand. Radiological studies showed a large extra-axial, dural-based mass in the left fronto-parietal region, typically isointense with gray matter and heterogeneous strong enhancement on T1-weighted images. Histologically, the tumor was composed of spindle-shaped cells growing in fascicles within the collagenous matrix. Immunohistochemical staining demonstrated diffuse CD34 positivity. Awareness of this neoplasm is necessary to accurate diagnosis.
Adult
;
Collagen
;
Diagnosis
;
Hand
;
Humans
;
Meninges*
;
Mouth
;
Pleura
;
Seizures
;
Solitary Fibrous Tumors*
3.Clinical Analysis of Laryngeal Tuberculosis: Recent 10 Years’ Experience in a Single Institution
Ji-Hoon KIM ; Tae Hoon KONG ; Hong-Shik CHOI ; Hyung Kwon BYEON
Journal of the Korean Society of Laryngology Phoniatrics and Logopedics 2020;31(2):61-65
Background and Objectives:
The overall incidence of laryngeal tuberculosis (LT) has generally decreased over the recent years, yet there is still a discrete population of patients newly diagnosed with the disease. This study is aimed to examine the patients with LT over the recent 10 years and to investigate the changes in clinical pattern with respect to the past period.Materials and Method A retrospective review has been performed on 20 patients who have been initially diagnosed with LT between 2005 and 2015.
Results:
The age of the patients ranged from 25 years to 95 years with an average age of 45.6 years. Seventeen patients (85%) showed hoarseness, which was the most common clinical symptom. Most affected lesion was the true vocal cord. Laryngoscopic examination showed various clinical manifestations: polypoid 30%, granulomatous 25%, nonspecific 25%, ulcerative 20%. A variety of methods were used for diagnostic confirmation of LT [acid-fast bacilli (AFB) smear 45%, AFB culture 40%, polymerase chain reaction 30%, surgical pathology 45%]. Coexisting pulmonary tuberculosis (PT) was detected in 10 patients (50%). Relative to the patients with inactive PT or normal lung status, those with active PT showed higher incidence of laryngeal lesions located in areas other than true vocal cord (p=0.050).
Conclusion
Based on the analytic results from this study, laryngologists should recognize the changes in the recent clinical patterns of LT and always be ready for clinical suspicion of this disease on such atypical laryngeal findings which can often mimic laryngeal malignancies to provide the pertinent treatment.
4.Clinical Analysis of Laryngeal Tuberculosis: Recent 10 Years’ Experience in a Single Institution
Ji-Hoon KIM ; Tae Hoon KONG ; Hong-Shik CHOI ; Hyung Kwon BYEON
Journal of the Korean Society of Laryngology Phoniatrics and Logopedics 2020;31(2):61-65
Background and Objectives:
The overall incidence of laryngeal tuberculosis (LT) has generally decreased over the recent years, yet there is still a discrete population of patients newly diagnosed with the disease. This study is aimed to examine the patients with LT over the recent 10 years and to investigate the changes in clinical pattern with respect to the past period.Materials and Method A retrospective review has been performed on 20 patients who have been initially diagnosed with LT between 2005 and 2015.
Results:
The age of the patients ranged from 25 years to 95 years with an average age of 45.6 years. Seventeen patients (85%) showed hoarseness, which was the most common clinical symptom. Most affected lesion was the true vocal cord. Laryngoscopic examination showed various clinical manifestations: polypoid 30%, granulomatous 25%, nonspecific 25%, ulcerative 20%. A variety of methods were used for diagnostic confirmation of LT [acid-fast bacilli (AFB) smear 45%, AFB culture 40%, polymerase chain reaction 30%, surgical pathology 45%]. Coexisting pulmonary tuberculosis (PT) was detected in 10 patients (50%). Relative to the patients with inactive PT or normal lung status, those with active PT showed higher incidence of laryngeal lesions located in areas other than true vocal cord (p=0.050).
Conclusion
Based on the analytic results from this study, laryngologists should recognize the changes in the recent clinical patterns of LT and always be ready for clinical suspicion of this disease on such atypical laryngeal findings which can often mimic laryngeal malignancies to provide the pertinent treatment.
5.Expression of MUC2 and MUC6 in Colorectal Adenomas and Adenocarcinomas.
Ho Sung PARK ; Tae Shik KONG ; Kyu Yun JANG ; Myoung Ja CHUNG ; Woo Sung MOON ; Dong Geun LEE ; Myoung Jae KANG
Journal of the Korean Society of Coloproctology 2005;21(4):193-200
PURPOSE: Although the expression of MUC2 is seen in colorectal tumors, there have been few reports about the expression of MUC6 in colorectal tumors. The aim of this study was to investigate the expressions of MUC2 and MUC6 in normal colorectal tissues and in tumors, as well as the association of MUC2 and MUC6 expressions with prognostic factors. METHODS: Twenty (20) cases of colorectal adenomas treated by using a endoscopic polypectomy and 30 cases of colorectal carcinomas treated by using a resection were collected. Ten (10) normal tissue samples were obtained apart from the carcinomas. Sections were used for MUC2 and MUC6 immunostaining. The expressions of MUC2 and MUC6 were scored by using the sum of the percentages of the stained cells and the intensity of staining. RESULTS: All of the ten normal colorectal tissues expressed MUC2 and MUC6. Of the 20 adenomas, 19 cases (95%) were MUC2 positive, and 17 cases (85%) were MUC6 positive. Adenomas with severe atypia tended to express lower levels of MUC2 and MUC6 than those with mild or moderate atypia. Of the 30 carcinomas, 28 cases (93%) were MUC2 positive and 19 cases (63.3%) were MUC6 positive. Colorectal mucinous carcinomas differed significantly from non-mucinous carcinomas in strong MUC6 expression. MUC2 expression showed a significant association with lymph-node metastasis. CONCLUSIONS: The results suggest that MUC6 is expressed in normal colorectal tissues and tumors, that MUC6 expression is especially strong in mucinous carcinomas, and that MUC2 expression is associated with lymph-node metastasis, among the prognostic factors.
Adenocarcinoma*
;
Adenocarcinoma, Mucinous
;
Adenoma*
;
Colorectal Neoplasms
;
Neoplasm Metastasis
6.Intraocular Ossification: A Case Report.
Ho Sung PARK ; Tae Shik KONG ; Kyu Yun JANG ; Myoung Ja CHUNG ; Woo Sung MOON ; Dong Geun LEE ; Myoung Jae KANG
Korean Journal of Pathology 2004;38(3):188-190
Heterotopic bone formation in the eyeball is a rare finding. Some etiologic factors, such as trauma, chronic inflammation, and long-standing retinal detachment have been associated with the onset of intraocular ossification. We report here on a case of a 21-year-old woman with a history of blunt trauma fifteen years ago, who complained of right eye blindness. When the right eyeball eviceration was done, a hard, grayish mass was found. On histopathologic examination, the mass showed lamellar bone with fatty marrow and hyalinized tissue with dystrophic calcification. We diagnosed her case as intraocular ossification.
Blindness
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Bone Marrow
;
Female
;
Humans
;
Hyalin
;
Inflammation
;
Ossification, Heterotopic
;
Osteogenesis
;
Retinal Detachment
;
Young Adult