1.Usefulness of Ultrasonography for Detection of Breast Cancer in Patients under 30 Years of Age.
Ki Keun OH ; Ji Hyung KIM ; Sang Wook YOON
Journal of the Korean Radiological Society 1995;32(4):649-655
PURPOSE: The purpose of this study was to compare mammography and breast sonography in detection of breast cancer and to suggest reasonable guideline of breast imaging in breast cancer patients under 30 years of age in whom breast cancer shows different clinicopathologic characteristics compared with breast cancer in older women. MATERIALS AND METHODS: A. uthors reviewed medical records of 27 patients under 30 years of age with pathologically-proven breast cancer. Age, family history, physical examination findings, indications for breast s0nography were reviewed. Cases in whom breast cancer lesion is detectable and cases in whom not detectable using mammography or breast sonography were reviewed. And then, authors evaluated the usefulness of each method and reasons for nonvisualization of lesion on mammography. RESULTS: Among 27 patients, 25 patients had palpable breast mass as indication of mammography and breast sonography. Cancer lesions were detectable in 16 of 25 patients (64%) on mammography and 24 of 25 patients (96%) on breast ultrasonography. Reasons for nonvisualization of cancer lesions on mammography were dense breast with nodular parenchyma pattern and minimal breast change of ductal carcinoma in situ. CONCLUSION: In breast cancer patients under 30 years of age who have palpable breast mass as a initiaJ, and main clinical problem, breast ultrasonography is superior to mammography in detecting and diagnosing breast cancer. We suggest that guidelines can avoid unnecessary mammography in these patients.
Breast Neoplasms*
;
Breast*
;
Carcinoma, Intraductal, Noninfiltrating
;
Female
;
Humans
;
Mammography
;
Medical Records
;
Physical Examination
;
Ultrasonography*
;
Ultrasonography, Mammary
2.Usefulness of Ultrasonography for Detection of Breast Cancer in Patients under 30 Years of Age.
Ki Keun OH ; Ji Hyung KIM ; Sang Wook YOON
Journal of the Korean Radiological Society 1995;32(4):649-655
PURPOSE: The purpose of this study was to compare mammography and breast sonography in detection of breast cancer and to suggest reasonable guideline of breast imaging in breast cancer patients under 30 years of age in whom breast cancer shows different clinicopathologic characteristics compared with breast cancer in older women. MATERIALS AND METHODS: A. uthors reviewed medical records of 27 patients under 30 years of age with pathologically-proven breast cancer. Age, family history, physical examination findings, indications for breast s0nography were reviewed. Cases in whom breast cancer lesion is detectable and cases in whom not detectable using mammography or breast sonography were reviewed. And then, authors evaluated the usefulness of each method and reasons for nonvisualization of lesion on mammography. RESULTS: Among 27 patients, 25 patients had palpable breast mass as indication of mammography and breast sonography. Cancer lesions were detectable in 16 of 25 patients (64%) on mammography and 24 of 25 patients (96%) on breast ultrasonography. Reasons for nonvisualization of cancer lesions on mammography were dense breast with nodular parenchyma pattern and minimal breast change of ductal carcinoma in situ. CONCLUSION: In breast cancer patients under 30 years of age who have palpable breast mass as a initiaJ, and main clinical problem, breast ultrasonography is superior to mammography in detecting and diagnosing breast cancer. We suggest that guidelines can avoid unnecessary mammography in these patients.
Breast Neoplasms*
;
Breast*
;
Carcinoma, Intraductal, Noninfiltrating
;
Female
;
Humans
;
Mammography
;
Medical Records
;
Physical Examination
;
Ultrasonography*
;
Ultrasonography, Mammary
3.A Study of Cellular and Humoral Immunity in Patients with Herpes Zoster.
Ho Sun JANG ; Si Hyung CHO ; Chang Keun OH ; Kyung Sool KWON
Korean Journal of Dermatology 1999;37(5):563-570
BACKGROUND: It seems that herpes zoster is caused by reactivation of the varicella-zoster virus and its incidence is increasing. The reactivation of the varicella zoster virus is thought to be associated with the disturbance of the state of immunity in patients with herpes zoster. OBJECTIVE: The purpose of this study was to elucidate the state of immunity in patients with herpes zoster in its acute phase(less than 7 days). METHODS: 1. Thirty patients with acute phase herpes zoster matched by age and sex against a control group, were checked for Helper/Inducer T cell(CD4), Suppressor/Cytotoxic T cell(CD8), NK cell, B cell and activated T cell by three color flow cytometric analysis. 2. Forty patients with herpes zoster measured delayed cutaneous hypersensitivity by means of Multitest' CMI. 3. Thirty patients with herpes zoster measured Ig G, M, A by means of N-antisera method.
Herpes Zoster*
;
Herpesvirus 3, Human
;
Humans
;
Hypersensitivity
;
Immunity, Cellular
;
Immunity, Humoral*
;
Incidence
;
Killer Cells, Natural
4.Electron microscopic studies on the human amniotic fibroblast cells infected with human cytomegalovirus.
Sun Kyung OH ; Keun Kwang LEE ; Hee Kyung CHUNG ; Hyung Hoan LEE
Journal of the Korean Society of Virology 1992;22(1):13-26
No abstract available.
Cytomegalovirus*
;
Fibroblasts*
;
Humans*
5.Radiographic Characteristics of Male Breast Cancer.
Shin Ho KOOK ; Ki Keun OH ; Tae Hoon KIM ; Chang Yun PARK ; Ji Hyung KIM
Journal of the Korean Radiological Society 1995;32(4):667-671
PURPOSE: Our objective was to evaluate mammographic findings of breast cancer in men. MATERIALS AND METHODS: This study includes 9 man with breast cancer diagnosed pathologically by radical mastectomy. Clinical and pathologic data were obtained by review of patients' medical record. Mammograms were analysed retrospectively. RESULTS: Of the 9 patients, eight had masses with spiculated margin or schirrous pattern with irregular margin. One patient had no specific evidence of breast cancer mammographically. Microcalcifications were seen in three patients, these calcifications were irregular in shape and were clustered. Of the 8 cases, four patients had the masses at the right breast, four at the left breast. Locations of breast cancer were subareolar(n=4) and were eccentric(n=4) from the nipple. The most common location was the upper outer quadrant. On histologic evaluation, 7 cases were infiltrating ductal carcinomas, one case was mucinous adenocarcinoma, and the remainder was proved as combined form of intraductal and infiltrating ductal carcinoma. Axillary lymph node metastasis were found in 4 cases. CONCLUSION: Mammographic findings of male breast carcinoma were that of subareolar or eccentrically located mass. Calcifications were same to the patterns of calcification as female breast cancer.
Adenocarcinoma, Mucinous
;
Breast
;
Breast Neoplasms
;
Breast Neoplasms, Male*
;
Carcinoma, Ductal
;
Female
;
Humans
;
Lymph Nodes
;
Male
;
Male*
;
Mastectomy, Radical
;
Medical Records
;
Neoplasm Metastasis
;
Nipples
;
Retrospective Studies
6.The Value of MRI Findings in Augmented Mammoplasty.
Ki Keun OH ; Ji Hyung KIM ; Sang Wook YOON ; Eun Ki JUNG
Journal of the Korean Radiological Society 1995;32(4):657-665
PURPOSE: The objective of augmentation mammoplasty includes reconstruction and cosmesis after breast surgery Increasing frequency of the procedure has been related with increased complications. Authors evaluated the value of breast MRI in the diagnosis of complications after augmentation mammoplasty. MATERIALS AND METHODS: Authors studied 42 breasts of 24 patients, who had undertaken augmentation mammoplasty. We evaluated findings of mammography, ultrasonography, and breast MRI in all patients. We used variable MRI sequences for better evaluation of implant status. The results were compared with the findings in surgical field. RESULTS: In all imaging studies, nodule or mass was indentifiable in the cases of interstitial paraffine injection(8 breasts), interstitial silicon injection(7 breasts), and herb medication(2 breasts). However, the differentitation between malignant and benign nodule was only possible at dynamic breast MRI. Mammogram was not helpful in the evaluation of extracapsular rupture in the cases of silastic bag insertion. In sonogram, identification of echogenic material was possible, although, false negative and false positive rate were high. MRI was able to visualize contour of entire implant and it was able to easily recognize low signal internal structure. CONCLUSION: MRI was the most accurate diagnostic tool in the evaluation of the character of the palpable mass after augmentation mammoplasty and early detection of breast implant rupture.
Breast
;
Breast Implants
;
Diagnosis
;
Female
;
Humans
;
Magnetic Resonance Imaging*
;
Mammaplasty*
;
Mammography
;
Paraffin
;
Rupture
;
Silicones
;
Ultrasonography
7.Radiographic Characteristics of Male Breast Cancer.
Shin Ho KOOK ; Ki Keun OH ; Tae Hoon KIM ; Chang Yun PARK ; Ji Hyung KIM
Journal of the Korean Radiological Society 1995;32(4):667-671
PURPOSE: Our objective was to evaluate mammographic findings of breast cancer in men. MATERIALS AND METHODS: This study includes 9 man with breast cancer diagnosed pathologically by radical mastectomy. Clinical and pathologic data were obtained by review of patients' medical record. Mammograms were analysed retrospectively. RESULTS: Of the 9 patients, eight had masses with spiculated margin or schirrous pattern with irregular margin. One patient had no specific evidence of breast cancer mammographically. Microcalcifications were seen in three patients, these calcifications were irregular in shape and were clustered. Of the 8 cases, four patients had the masses at the right breast, four at the left breast. Locations of breast cancer were subareolar(n=4) and were eccentric(n=4) from the nipple. The most common location was the upper outer quadrant. On histologic evaluation, 7 cases were infiltrating ductal carcinomas, one case was mucinous adenocarcinoma, and the remainder was proved as combined form of intraductal and infiltrating ductal carcinoma. Axillary lymph node metastasis were found in 4 cases. CONCLUSION: Mammographic findings of male breast carcinoma were that of subareolar or eccentrically located mass. Calcifications were same to the patterns of calcification as female breast cancer.
Adenocarcinoma, Mucinous
;
Breast
;
Breast Neoplasms
;
Breast Neoplasms, Male*
;
Carcinoma, Ductal
;
Female
;
Humans
;
Lymph Nodes
;
Male
;
Male*
;
Mastectomy, Radical
;
Medical Records
;
Neoplasm Metastasis
;
Nipples
;
Retrospective Studies
8.The Value of MRI Findings in Augmented Mammoplasty.
Ki Keun OH ; Ji Hyung KIM ; Sang Wook YOON ; Eun Ki JUNG
Journal of the Korean Radiological Society 1995;32(4):657-665
PURPOSE: The objective of augmentation mammoplasty includes reconstruction and cosmesis after breast surgery Increasing frequency of the procedure has been related with increased complications. Authors evaluated the value of breast MRI in the diagnosis of complications after augmentation mammoplasty. MATERIALS AND METHODS: Authors studied 42 breasts of 24 patients, who had undertaken augmentation mammoplasty. We evaluated findings of mammography, ultrasonography, and breast MRI in all patients. We used variable MRI sequences for better evaluation of implant status. The results were compared with the findings in surgical field. RESULTS: In all imaging studies, nodule or mass was indentifiable in the cases of interstitial paraffine injection(8 breasts), interstitial silicon injection(7 breasts), and herb medication(2 breasts). However, the differentitation between malignant and benign nodule was only possible at dynamic breast MRI. Mammogram was not helpful in the evaluation of extracapsular rupture in the cases of silastic bag insertion. In sonogram, identification of echogenic material was possible, although, false negative and false positive rate were high. MRI was able to visualize contour of entire implant and it was able to easily recognize low signal internal structure. CONCLUSION: MRI was the most accurate diagnostic tool in the evaluation of the character of the palpable mass after augmentation mammoplasty and early detection of breast implant rupture.
Breast
;
Breast Implants
;
Diagnosis
;
Female
;
Humans
;
Magnetic Resonance Imaging*
;
Mammaplasty*
;
Mammography
;
Paraffin
;
Rupture
;
Silicones
;
Ultrasonography
9.Proper Understanding and Application of Gastric Lavage.
Journal of The Korean Society of Clinical Toxicology 2013;11(1):1-8
Gastric lavage is one of gastrointestinal decontamination methods which have been controversial in the clinical toxicology field for a long time. Expert groups of American and European clinical toxicologists have published the position papers regarding gastric lavage three times since 1997. They recommended that gastric lavage should not be used as a routine procedure in the management of acute intoxication, because they thought that there is no certain evidence of improving clinical outcome by its use. However, the studies they reviewed were not well-controlled randomized trials, which cannot be conducted in the clinical toxicology field due to variability of patients and ethical problems. Therefore, the results from these studies should be interpreted with caution. They also insisted that gastric lavage can be undertaken within 60 minutes of ingestion. The limitation of one hour after ingestion is too arbitrary and may cause a lot of misunderstanding. Formation of pharmacobezoar or gastric hypomotility after ingestion may significantly delay the gastric emptying time so that gastric lavage can be useful even after several hours or more in case of highly toxic substances or severe intoxication. Furthermore, as there are a number of serious intoxication by toxic pesticides with large amount in suicidal attempts in Korea, it seems that gastric lavage may be used more frequently in Korea than in Western countries. When deciding whether or not to use gastric lavage, all the indications, contraindications, and possible adverse effects should be taken into account on the basis of risk-benefit analysis. If the procedure is decided to be done, it should only be performed by well-trained experts.
Decontamination
;
Eating
;
Gastric Emptying
;
Gastric Lavage
;
Humans
;
Korea
;
Pesticides
;
Toxicology
10.A Case of Multiple Agminated Spitz Nevi Showing Desmoplastic Changes.
Chae Sung YIM ; Si Hyung CHO ; Ho Sun JANG ; Kyung Sool KWON ; Tae Ahn CHUNG ; Chang Keun OH
Annals of Dermatology 1998;10(3):195-198
We report a case of multiple agminated Spitz nevi in a 16-year-old boy who presented with multiple nodules on the right side of his face. His past history revealed that there had been erythematous and brown colored papules on the same site at the age of four. At that time one lesion was excised and histopathological findings showed fairly well circumscribed spindle and epithelioid cell nests consistent with a Spitz nevus. Twelve years later, he presented with multiple agminated brown to black colored nodules on the face. Microscopic evaluation revealed nevus cells diffusely distributed throughout the dermis showing no or little junctional activity. In addition, these cells were embedded in a strikingly desmoplastic stroma which consisted of acellular collagen fiber. Immunohistochemical staining for S-100 protein was positive. To our knowledge this is the first report of multiple agminated Spitz nevi in Korea.
Adolescent
;
Collagen
;
Dermis
;
Epithelioid Cells
;
Humans
;
Korea
;
Male
;
Nevus*
;
Nevus, Epithelioid and Spindle Cell
;
S100 Proteins