1.Crush Cytology of Secretory Meningioma: A Case Report.
Na Rae KIM ; Gie Taek YEE ; Hyun Yee CHO
Brain Tumor Research and Treatment 2015;3(2):147-150
Secretory meningioma, a histologic subtype of meningioma of World Health Organization grade 1, is clinically significant because it is frequently accompanied by peritumoral brain edema. The patient was a 53-year-old woman suffering from dysarthria and motor weakness of the right arm. Enhanced magnetic resonance images showed an enhancing mass measuring 2.5 cm in size located in the right parietal convexity. Intraoperative squash cytology showed moderately cellular smears composed mainly of clusters of ovoid cells with scattered whorl formations. The cells had round nuclei and a moderate amount of eosinophilic cytoplasm with ill-defined cell borders. Neither atypia nor mitosis was observed. Some scattered round shaped eosinophilic refractile hyaline globules, measuring from 5 to 25 microm, were observed, and a periglobular halo was occasionally observed. The diagnosis of secretory meningioma should be made as early as possible so that neurosurgeons can prevent postoperative aggravation of peritumoral edema. We emphasize that cytologic findings including eosinophilic, non-fibrillary cytoplasm with eosinophilic refractile hyaline globules are helpful in differentiating secretory meningioma from other subtypes of meningioma, primary and metastatic brain tumors.
Arm
;
Brain
;
Brain Edema
;
Brain Neoplasms
;
Cytoplasm
;
Diagnosis
;
Dysarthria
;
Edema
;
Eosinophils
;
Female
;
Humans
;
Hyalin
;
Meningioma*
;
Middle Aged
;
Mitosis
;
Rabeprazole
;
World Health Organization
2.Galactographic Differentiation between Malignant and Benign Disease in Patients with Pathologic Nipple Discharge.
Nariya CHO ; Ki Keun OH ; Hyun Yee CHO
Journal of the Korean Radiological Society 2003;48(6):511-516
PURPOSE: To compare the galactographic findings of malignant and benign disease in patients with pathologic nipple discharge and to analyze the features suggesting malignancy. MATERIALS AND METHODS: In 24 patients in whom pathologic nipple discharge had occurred, the findings of preoperative galactography were correlated with those of pathology. RESULTS: Nine of the 24 cases were malignant and the other 15 were benign. Intraductal calcification occurred in five malignant cases (56%) and two (13%) which were benign. Seven malignant cases (78%) involved the segmental ducts, and in eight (89%), the peripheral ducts below the subsegmental duct were involved. Five benign cases (33%) involved the lactiferous sinus, seven (47%) the segmental duct, and two (13%) the subsegmental duct. Distal duct dilatation occurred in four benign cases (27%), while ductal stenosis was noted in six cases (67%) and ductal distortion in seven (78%). A malignant tumor appeared as a multiple (n=5, 56%) or irregular (n=5, 56%) filling defect, and a benign tumor as a single (n=12, 80%), oval (n=6, 40%) or lobular (n=4, 27%) filling defect. CONCLUSION: At galactography, a malignant tumor frequently appeared as an irregular multiple intraductal filling defect in a peripheral duct. A benign tumor, on the other hand, appeared as an oval or lobular single lesion. The presence of ductal stenosis, distortion and intraductal microcalcifications not opacified by contrast material suggest possible malignancy.
Constriction, Pathologic
;
Dilatation
;
Hand
;
Humans
;
Nipples*
;
Pathology
3.Adenovirus-Mediated Toxic Gene Therapy Using Cytosine Deaminase and Osteocalcin Promoter for the Treatment of Prostate Cancer.
Hong Seok PARK ; Jae Hyun BAE ; Du Geon MOON ; Hyun Yee CHO ; Chinghai KAO ; Thomas A GARDNER ; Jun CHEON
Korean Journal of Urology 2000;41(12):1437-1444
No abstract available.
Cytosine Deaminase*
;
Cytosine*
;
Genetic Therapy*
;
Osteocalcin*
;
Prostate*
;
Prostatic Neoplasms*
4.Pediatric vulvar squamous cell carcinoma in a liver transplantation recipient: a case report.
Na Rae KIM ; Soyi LIM ; Hyun Yee CHO
Journal of Gynecologic Oncology 2011;22(3):207-210
Here we report the first Korean case of a girl who developed noninvasive squamous cell carcinoma of the vulva at the age of 16 years. She was taking tacrolimus, an immunosuppressive agent, after living-related liver transplantation. The vulvar masses were microscopically proved as vulvar intraepithelial neoplasm II and III, even squamous cell carcinoma in situ. Human papillomavirus subtypes (69 and 73) and human papillomavirus types (66, 70, 73, and 43) were detected in the vulvar mass and the cervicovaginal smear, respectively. The outcome of liver transplantation for children has been markedly improved during the last several decades. However, the present case highlights the need to perform periodic genital examinations for the adolescents after liver transplantation. In addition to the high risk and probable high subtypes, uncommonly found human papillomavirus subtypes were extracted from her vulvar cancer. The present case is the first to show the possible relationship between previously unknown and uncommon human papillomavirus subtypes and pediatric post-transplant vulvar squamous cell carcinoma. More attention should be paid to the vulvar and cervical surveillance of pediatric transplant recipients by both medical specialists and general physicians.
Adolescent
;
Carcinoma in Situ
;
Carcinoma, Squamous Cell
;
Child
;
Humans
;
Liver
;
Liver Transplantation
;
Specialization
;
Tacrolimus
;
Vulva
;
Vulvar Neoplasms
5.Utility of Transmission Electron Microscopy in Small Round Cell Tumors.
Na Rae KIM ; Seung Yeon HA ; Hyun Yee CHO
Journal of Pathology and Translational Medicine 2015;49(2):93-101
Small round cell tumors (SRCTs) are a heterogeneous group of neoplasms composed of small, primitive, and undifferentiated cells sharing similar histology under light microscopy. SRCTs include Ewing sarcoma/peripheral neuroectodermal tumor family tumors, neuroblastoma, desmoplastic SRCT, rhabdomyosarcoma, poorly differentiated round cell synovial sarcoma, mesenchymal chondrosarcoma, small cell osteosarcoma, small cell malignant peripheral nerve sheath tumor, and small cell schwannoma. Non-Hodgkin\'s malignant lymphoma, myeloid sarcoma, malignant melanoma, and gastrointestinal stromal tumor may also present as SRCT. The current shift towards immunohistochemistry and cytogenetic molecular techniques for SRCT may be inappropriate because of antigenic overlapping or inconclusive molecular results due to the lack of differentiation of primitive cells and unavailable genetic service or limited moleculocytogenetic experience. Although usage has declined, electron microscopy (EM) remains very useful and shows salient features for the diagnosis of SRCTs. Although EM is not always required, it provides reliability and validity in the diagnosis of SRCT. Here, the ultrastructural characteristics of SRCTs are reviewed and we suggest that EM would be utilized as one of the reliable modalities for the diagnosis of undifferentiated and poorly differentiated SRCTs.
Chondrosarcoma, Mesenchymal
;
Cytogenetics
;
Diagnosis
;
Gastrointestinal Stromal Tumors
;
Genetic Services
;
Humans
;
Immunohistochemistry
;
Lymphoma
;
Melanoma
;
Microscopy
;
Microscopy, Electron
;
Microscopy, Electron, Transmission*
;
Neurilemmoma
;
Neuroblastoma
;
Neuroectodermal Tumors
;
Osteosarcoma
;
Pathology
;
Peripheral Nerves
;
Reproducibility of Results
;
Rhabdomyosarcoma
;
Sarcoma, Myeloid
;
Sarcoma, Synovial
6.Risk Factors and Prognosis of Bronchopulmonary Dysplasia.
Hyun Ju PARK ; Chang Yee CHO ; Young Youn CHOI
Journal of the Korean Society of Neonatology 1999;6(1):8-15
PURPOSE: The incidence of bronchopulmonary dysplasia(BPD) may further increase in the coming decade as advances in neonatal intensive care enable clinicians to save even smaller, younger and more critically ill infants. The purpose of this study was to evaluate risk factors and prognosis associated with BPD in premature infants. METHODS: The retrospective review on RDS infants admitted to the neonatal intensive care units at the Chonnam University Hospital was done from Jan. 1995 to July. 1997. These infants were divided into two groups, BPD group(n=25) and non-BPD group(n= 112). The incidence, risk factors and therapeutic results of BPD were analyzed. RESULTS: Infants in the BPD group had lower birth weight, gestational age, and lower 1 min Apgar score compared to that of infants in the control group. The incidence of BPD was 18.2Yo and was higher in male infants. Longer duration of oxygen, ventilatory support and higher PIP were noted in the BPD group. There were no significant differences between the two groups concerning duration of postnatal requirement of oxygen supplementation, ventilatory support, and ventilatory parameters such as FiO2 and PEEP. The incidences of PDA and pneumothorax mean fluid volume and weight loss were similar in two groups. Frequent episodes of respiratory infection occurred(31.6%) in BPD group and one patient expired during 6 to 12 month follow up. 22 infants(88%) received dexamethasone in BPD group. Side effects of dexamethasone including hypertension and hyperglycemia occurred in 59.1% and 31.8%, respectively. CONCLUSION: The overall incidence of BPD was 18.2% and the risk factors for BPD included lower birth weight and gestational age, lower Apgar score at 1 minute, longer duration of oxygen and ventilatory support with higher PIP.
Apgar Score
;
Birth Weight
;
Bronchopulmonary Dysplasia*
;
Critical Illness
;
Dexamethasone
;
Follow-Up Studies
;
Gestational Age
;
Humans
;
Hyperglycemia
;
Hypertension
;
Incidence
;
Infant
;
Infant, Newborn
;
Infant, Premature
;
Intensive Care Units, Neonatal
;
Intensive Care, Neonatal
;
Jeollanam-do
;
Male
;
Oxygen
;
Pneumothorax
;
Prognosis*
;
Retrospective Studies
;
Risk Factors*
;
Weight Loss
7.Hyperreactio luteinalis associated with a normal singleton pregnancy.
Kwang Beom LEE ; Gwang Jun KIM ; Byung Cheul HWANG ; Hyun Yee CHO
Korean Journal of Obstetrics and Gynecology 2002;45(6):1092-1096
Hyperreactio luteinalis is a rare disease characterized by marked cystic enlargement of the ovary due to multiple benign theca lutein cyst. The cause of this disease is not well known but is believed to be induced by high serum levels of human chorionic gonadotropins (hCG). It occurs usually in gestational trophoblastic disease, multiple pregnancies, and rarely in normal pregnancy. In nature, hyperreactio luteinalis is a benign condition. Therefore, the appropriate management is conservative, but surgical intervention is definitely indicated to remove infarcted tissue, control hemorrhage, or decrease androgen production in virilized patients. Here we report a case of hyperreactio luteinalis which was diagnosed at 11 weeks gestation. Lower abdominal pain was developed and progressed. Emergent right wedge oophorectomy and left salpingoophorectomy was performed due to probable torsion of left ovarian cyst and the pregnancy maintained. Theca lutein cysts were confirmed on pathologic examination.
Abdominal Pain
;
Chorionic Gonadotropin
;
Female
;
Gestational Trophoblastic Disease
;
Hemorrhage
;
Humans
;
Lutein
;
Ovarian Cysts
;
Ovariectomy
;
Ovary
;
Pregnancy*
;
Pregnancy, Multiple
;
Rare Diseases
8.Adenocarcinoma Arising in a Colonic Duplication Cyst: A Case Report and Review of the Literature.
Myunghee KANG ; Jungsuk AN ; Dong Hae CHUNG ; Hyun Yee CHO
Korean Journal of Pathology 2014;48(1):62-65
No abstract available.
Adenocarcinoma*
;
Colon*
9.Epitheilioid Trophoblastic Tumor of the Lung: A Case Report.
Seung Yeon HA ; Hyun Yee CHO ; Jae Ik LEE
Journal of Lung Cancer 2009;8(2):114-117
Epithelioid trophoblastic tumor is a rare type of gestational trophoblastic disease that is distinct from placental site trophoblastic tumor and choriocarcinoma, and epithelioid trophoblastic tumor has features resembling a carcinoma. We report here on an epithelioid trophoblastic tumor that was discovered as a solitary pulmonary nodule in the lung of a 50-year-old woman. The patient had suffered from a hydatidiform mole 20 years previously. Wedge resection of the lung was done and this showed a 1.9x1.5 cm sized, relatively well defined mass composed of mononuclear tumor cells admixed with hyaline-like material and necrosis. The tumor cells were positive for EMA, Cam5.2, alpha-inhibin, PLAP and hCG. After consulting the gynecologic department, a 7.5x6.5 cm sized mass was discovered in the uterine fundus. Hysterectomy was then done. The tumor cells were same to those of the lung mass. The lung mass is considered to be metastasis from the epithelioid trophoblastic tumor of the uterus. She has been an uneventful clinical course for three years.
Biomarkers
;
Choriocarcinoma
;
Female
;
Gestational Trophoblastic Disease
;
Humans
;
Hydatidiform Mole
;
Hysterectomy
;
Inhibins
;
Keratins
;
Lung
;
Middle Aged
;
Necrosis
;
Neoplasm Metastasis
;
Pregnancy
;
Solitary Pulmonary Nodule
;
Trophoblastic Neoplasms
;
Trophoblastic Tumor, Placental Site
;
Trophoblasts
;
Uterus
10.The Cytology of Metastatic Angiosarcoma in Pleural Fluid : A Case Report.
Na Rae KIM ; Dong Hae CHUNG ; Hyun Yee CHO
Korean Journal of Pathology 2009;43(3):285-259
A 74-year-old woman presented with an abrupt onset of dyspnea that she had experienced for a week. She had been suffering from cutaneous nodules in the scalp for a year. Thoracentesis of the pleural fluid was performed. The Papanicolaou-stained smears, Thin prep and cell block preparations revealed clusters of oval-shaped cells concentrically layered about amorphous acellular cores, i.e., there was microacinar lumen formation as well as singly scattered atypical cells. The cells occasionally demonstrated intracytoplasmic vacuoles and hemosiderin deposits. Those cells stained for CD31 and they were negative for pancytokeratin. Punch biopsy from the scalp nodules revealed angiosarcoma. There are currently few reported cases of angiosarcoma in an exfoliative pleural effusion. Angiosarcoma has diverse, heterogeneous cytologic features. Making the cytologic diagnosis of metastatic angiosarcoma in pleural fluid is a challenge for pathologists. Knowledge of the clinical history is of great help for diagnosing this tumor when it appears in rare sites. Immunopanels with CD31, pancytokeratin and TTF-1 are helpful for making the differential diagnosis. The pathologists should look for clues suggesting the presence of vascular differentiation in the exfoliative cytologic materials when a diagnosis of angiosarcoma is suspected.
Aged
;
Biopsy
;
Diagnosis, Differential
;
Dyspnea
;
Female
;
Hemangiosarcoma
;
Hemosiderin
;
Humans
;
Pleural Effusion
;
Pleural Effusion, Malignant
;
Scalp
;
Stress, Psychological
;
Vacuoles