1.Serous Cystadenoma of the Pancreas: A case report.
Young Kyoung BAE ; Woo Young JANG ; Kyoung Chan CHOI ; Joon Hyuk CHOI ; Won Hee CHOI
Korean Journal of Pathology 1996;30(1):68-71
Serous cystadenoma of the pancreas, also known as microcystic adenoma or glycogen-rich cystadenoma, is an unusually benign tumor. It is usually large and composed microscopically of many small cysts lined by small, cuboidal or flattened cells containing abundant glycogen. It has been suggested that serous cystadenoma probably arise from the ductular cells or centroacinar cells. Herein, we report on a case of serous cystadenoma of the pancreas in a 55-year-old female. The tumor, measuring 13.5x11.5x10.0 cm, was located in the head of the pancreas and the cut surface revealed a sponge-like appearance due to innumerable tiny cysts containing clear serous fluid. Microscopic analysis showed cystic spaces lined by cuboidal cells with intracytoplasmic glycogen.
Female
;
Humans
;
Cysts
;
Adenoma
2.Study on the properties of gypsum-bonded dental investiments.
Kyoung Sun KIM ; Yi Hyung WOO ; Boo Byung CHOI
The Journal of Korean Academy of Prosthodontics 1991;29(1):139-165
No abstract available.
3.A CASE OF SERO-MUCOUS CYSTADENOMA OF THE PAROTID GLAND.
Woo Seok JANG ; In Joong KIM ; Jong Woo CHOI ; Yoon Je KANG ; Kyoung Mee KIM ; An Hi LEE
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(3):593-597
Cystadenomas are benign neoplasm in which the epithelium demonstrates adenomatous proliferation. Several morphologic variants of cystadenomas have bean described, including papillary-oncocytic, mucous, and seromucous subtypes. Cystadenomas arising from salivary glands are very rare and seromucous cystadenoma of parotid gland has not been reported in Korea so far. Cystadenomas of the parotid gland usually Present as asymptomatic slowly growing mass and those of the minor salivary glands produce smooth nodules that may be compressible. We performed a superficial parotidectomy in a patient with a seromucous cystadenoma. This may be the first report of seromucous cystadenoma of carotid gland in Korea.
Cystadenoma*
;
Epithelium
;
Humans
;
Korea
;
Parotid Gland*
;
Salivary Glands
;
Salivary Glands, Minor
4.Job's Syndrome: Suspected Case.
Kyoung Ae JANG ; Chi Woo SUH ; Jee Ho CHOI ; Kyung Jeh SUNG ; Kee Chan MOON ; Jai Kyoung KOH
Korean Journal of Dermatology 1999;37(3):407-409
Job's syndrome is an inflammatory skin disease characterized by (1) severe eczema, (2) recurrent staphylococcal infections of the skin and sinopulmonary tract, (3) cold subcutaneous abscesses, and (4) high serum IgE levels. We describe a 55-year-old woman with long-standing atopic dermatitis-like eczema, recurrent abscesses, and a high level of serum IgE. We suspected this case as Job's syndrome.
Abscess
;
Eczema
;
Female
;
Humans
;
Immunoglobulin E
;
Job Syndrome*
;
Middle Aged
;
Skin
;
Skin Diseases
;
Staphylococcal Infections
5.Congenital self-healing Reticulohistiocytosis.
Kyoung Ae JANG ; Chi Woo SUH ; Jee Ho CHOI ; Kyung Jeh SUNG ; Kee Chan MOON ; Jai Kyoung KOH
Korean Journal of Dermatology 1999;37(2):273-275
Congenital self-healing reticulohistiocytosis (CSHRH) is a rare Langerhans cell disorder showing spontaneous resolution within 3-4 months. By electron microscopy, the identification of many Birbeck granules and laminated dense bodies in the infiltrated cells is mandatory for the diagnosis of CSHRH. We describe a case of congenital self-healing reticulohistiocyt~osis in a 4-month-old male infant.
Diagnosis
;
Humans
;
Infant
;
Male
;
Microscopy, Electron
6.A Case of Acrodermatitis Continua of Hallopeau.
Hae Woong LEE ; Kyoung Jin KIM ; Mi Woo LEE ; Jee Ho CHOI ; Kee Chan MOON ; Jai Kyoung KOH
Annals of Dermatology 2004;16(3):141-143
No abstract available.
Acrodermatitis*
7.Expression of Oncogene Product in the Colorectal Carcinoma.
Young Ran SHIM ; Woo Young JANG ; Kyoung Chan CHOI ; Joon Hyuk CHOI ; Won Hee CHOI ; Min Chul SHIM
Yeungnam University Journal of Medicine 1995;12(2):210-225
The expression of p62"' and p2l can be seen in many solid tumor, but the pattern and incidence of expression were different according to organ, countries, and examiners, thus it is not definitely defined. Total 67 colorectal carcinoma in paraffin sections are analysed by immunohistochemically for evaluation of the p62and p21- expression according to the age, sex, chief complaints, location, differentiation, modified Dukes stage, using the specific monoclonal antibodies. The results were summarized as follows : The age of patients ranged from 32 years to 82 years. The mean age was 57.6 years. The expression of p 62y' and p21 was not correlated with age. Male was 29 cases(43.3%) and female was 38 cases(56.7%). The male to female ratio was 1:1.31. The and 95.0% in moderately differentiated adenocarcinoma, 90.0% and 90.0% in poorly differentiated <,;, adenocarcmoma, 100.0% and 100.0% in mucinous carcinoma. The positive rate of p62!and and p2l' was 94.1% and 88.2% in Dukes stage B,, 96.0% and 96.0% in Dukes stage B,, 100.0% and 100.0% in Dukes stage C,, 100.0% and 88.9% in Dukes stage C, and 100.0% and 100. o% in Dukes stage D. The expression of p62 y' in metastatic colorectal carcinoma showed diffuse and strongly positive reaction than primary colorectal carcinoma. The expression of p21 in primary colorectal carcinoma showed diffuse and strongly positive reaction than metastatic colorectal carcinoma.
Adenocarcinoma
;
Adenocarcinoma, Mucinous
;
Antibodies, Monoclonal
;
Colorectal Neoplasms*
;
Female
;
Humans
;
Immunohistochemistry
;
Incidence
;
Male
;
Oncogene Proteins*
;
Oncogenes*
;
Paraffin
8.Gastric Carcinoma with Lymphoid Stroma: Pathologic and immunohistochemical study of 14 cases.
Eun Hee LEE ; Woo Young JANG ; Kyoung Chan CHOI ; Young Ran SHIM ; Joon Hyuk CHOI ; Won Hee CHOI
Korean Journal of Pathology 1996;30(2):115-120
A total of 672 surgically resected gastric carcinomas were reviewed, and fourteen cases(2.1%) of "gastric carcinoma with lymphoid stroma" were identified. The tumor was located mostly in cardia and body portion(86%). Thirteen patients one was lost to follow up were alive without recurrence of tumor. Grossly, this carcinoma was characterized by an expanding growth pattern or a multinodular pattern. Histologically, this carcinoma showed an irregular trabecular and alveolar arrangement and densely infiltrated lymphoid cells with lymph follicles. The tumor cell nests were widely separated by non-desmoplastic lymphoid stroma. On immunohistochemical study, T cells were evenly distributed throughout the tumor lesion with intimate contact with individual carcinoma cells, but B cells were mainly present within the germinal centers of lymph follicles. Thus, the organized immune response combined with cell mediated and humoral immunities against the carcinoma cells may be a defense mechanism of the host in this type of gastric carcinoma.
9.DNA Methylation-Based Age Estimation in the Forensic Field.
Ja Hyun AN ; Kyoung Jin SHIN ; Ajin CHOI ; Woo Ick YANG ; Hwan Young LEE
Korean Journal of Legal Medicine 2013;37(1):1-8
The estimation of age is an important issue in forensic science, and the forensic community has attempted many times to establish methods for solving this issue. Aging leads to alterations in tissues and organs at the molecular level. These alterations at the molecular level may aid forensic scientists to estimate the age of a living person or a dead body. Initially, the focus was on the genetic components of aging, but recently, epigenetic mechanisms have emerged as the key contributors to the alterations in genome structure and function that accompany aging. In particular, DNA methylation is one of the best-understood mechanisms, and it has been suggested as a promising biomarker for age estimation in many studies. In this review, we summarize the recent studies on age-associated DNA methylation changes in different tissues and discuss its possible and practical applications in forensics.
Aging
;
DNA
;
DNA Methylation
;
Epigenomics
;
Forensic Sciences
;
Genome
;
Humans
10.Renin Release by Adenosine Agosists and Antagonists in Two-Kidney One Clip Goldblatt Hypertensive Rats.
Young Jin CHOI ; Sun Hee KIM ; Kyoung Woo CHO ; Jong HUH ; Kyung Hwan SEOL
Journal of Korean Society of Endocrinology 1998;13(1):67-76
BACKGROUND: In two-kidney one clip Goldbaltt hypertensive rats(2K1C GHR), clipped kidney may be exposed to low pressure and unclipped kidney to high pressure. In addition, both kidneys may have a different amount of adenosine which is increased by ischemia and plays an important role for renin release. The aim of this study was to invstigate the responsmiveness for renin release to adenosine agonists and antagonist in clipped and unclipped kidney of 2K1C GHR. METHODS: Emplying kidney slices from both unclipped and unclipped kidney of 2K1C GHR, the alteration by adenosine agonists and antagonist of renin release was studied. RESULTS: The renal renin content and basal renin release from unclipped kidney slices were suppressed, whereas those from clipped kidney were augmented Adenosine Al receptor agonist, cyclohexyladenosne(CHA), phenylisopropyl adenosine(PIA) and adenosine caused a decrease in renin release from clipped kidney slices. Adenosine A2 receptor agonist, NECA, and nonspecific adenosine receptor aganist, 2-chloroadenosine(CA) caused an increase in renin release from clipped kidney slices. Adenosine receptor antagonist, 8-phenyltheophylline(8-PT) caused an increase in renin release from clipped kidney slices. In unclipped kidney, however, the renin release in response to NECA, CA or 8-PT was reversed and the decreasing effect of renin release to CHA and adenosine was slightly inereased. CONCLUSION: These results suggest that the responsiveness of adenosine receptors, which may participate in renin release is modified in clipped and unclipped kidney of 2K1C GHR.
Adenosine*
;
Adenosine-5'-(N-ethylcarboxamide)
;
Animals
;
Hypertension, Renovascular
;
Ischemia
;
Kidney
;
Rats*
;
Receptors, Adenosine A2
;
Receptors, Purinergic P1
;
Renin*