- CD24 Expression in Gastric Adenocarcinoma Is Associated with Tumor Invasiveness.
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Kyeong Cheon Jung, Jae Nam Seo, Tae Woon Kim, Young Mi Choi, Kwon Ik Oh, Hun Ho Song, Hyung Sik Shin, Young Euy Park
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Korean J Pathol. 2004;38(6):388-393.
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- BACKGROUND
CD24, also referred to as the heat stable antigen in mice, is a glycosyl phosphatidylinositol- linked glycoprotein expressed by thymocytes, B cells, neutrophils and immature neuronal cells. It has been recently observed in a variety of human malignancy. Here, we demonstrated the expression of CD24 in gastric adenocarcinomas.
METHODS
A total of 40 gastric adenocarcinomas and 20 tubular adenomas were immunohistochemically examined for the expression of CD24 and matrix metalloproteinase-2 (MMP-2) proteins. The immunoreactivity of CD24 was semiquantitatively scored (0, 1+, 2+) and compared with clinicopathologic variables and MMP-2 expression in tumor cells.
RESULTS
CD24 was rarely expressed in normal gastric tissue and not expressed in tubular adenoma. In contrast, a moderate/strong expression (2+) of CD24 was observed in 25% of gastric adenocarcinomas, and 30% cases showed a weak CD24 staining (1+). Moreover, CD24 expression was significantly correlated with the depth of tumor invasion and MMP-2 expression.
CONCLUSION
These results suggest that the aberrant expression of CD24 in gastric adenocarcinomas might be associated with tumor progression and invasiveness.
- Expression of CD43 in Colorectal Adenocarcinom.
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Kyeong Cheon Jung, Youngmee Bae, Hyekyung Ahn, Hye Eun Kim, Myung Chul Jang, Hye Rin Roh, Gi Bong Chae, Won Jin Choi, Woo Jin Kim, Weon Seo Park
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Korean J Pathol. 2004;38(1):8-14.
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Abstract
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- BACKGROUND
CD43 is a sialoglycoprotein that is highly expressed on most leukocytes, except on B lymphocytes and dendritic cells. CD43 has been reported to be involved in the adhesion and apoptosis of lymphocytes. Although the aberrant expression of CD43 antigen in non-lymphoid tissues has been reported, the expression of the CD43 antigen in gastrointestinal malignancies is not well studied. Here, we studied the expression of CD43 in colon adenocarcinoma using the anti-CD43 monoclonal antibody developed in our laboratory.
METHODS
Thirty patients who had undergone surgical resection for colorectal carcinoma were recruited. The expression of CD43 molecule was determined by analyzing the formalin-fixed, paraffin-embedded specimens immunohistochemically using our newly developed anti-CD43 mAb (K06). The results obtained by the immunohistochemical analysis correlated to the clinicopatho-logical parameters.
RESULTS
The expression of CD43 were found in 20 out of 30 colorectal carcinoma cases. The expression of CD43 antigen is higher in well differentiated adenocarcinomas than poorly or moderately differentiated adenocarcinomas.
CONCLUSIONS
The new anti-CD43 mAb might be helpful for the detection of the expression of CD43 on colorectal carcinoma cells. Further studies are required to assess the relationship between the CD43 expression and the colorectal carcinogenesis.
- Clinicopathological Analysis on the 104 Cases of Malignant Melanoma.
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Kye Yong Song, Kyeong Cheon Jung, Kwang Hyun Cho, Je Geun Chi, Eui Geun Ham
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Korean J Pathol. 1997;31(6):566-573.
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- The cliniopathological analysis was done on the 104 cases of malignant melanoma diagnosed at the Seoul National University Hospital (SNUH) from 1984 to 1993. The basic clinical data and the pathological items were based on the New Mexico Melanoma Registry Worksheet. The results were as follows. The male to female ratio was 1 : 0.79. Primary cutaneous melanoma was more common in the male (M : F=1 : 0.56) but primary extracutaneous melanoma with slight female dominancy (M : F=1 : 1.25). The peak age was the 6th decade in both cutaneous and extracutaneous malignant melanoma. In 66% (35 cases) of primary cutaneous malignant melanoma, the primary site was located in the acral area (including cases of acral lentiginous and nodular type), of which 63% (41% of total cutaneous melanoma) was acral lentiginous type. Major components of tumor cells were epithelioid. Clark's level of tumor was III or more at the time of the first visit in the majority of the cases (85%). The incidence rate of extracutaneous melanoma was 34.6% (36 cases) among the primary melanoma, and the eyeball (17.3%) was the most prevalent organ. All these features suggest that the racial difference between the Korean and the Caucasian is evident and also that etiologic role of sun damage is not quite marked in the Korean. We also suggest that an early detection program is very important to cure this malignant tumor.
- Carcinoid Tumors of the Gastrointestinal Tract: Analysis of 36 Cases.
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Kyeong Cheon Jung, Hee Sung Kim, Sang Yong Song, Ghee Young Choe, Yong Il Kim
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Korean J Pathol. 1996;30(5):396-407.
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- We reviewed a total of 36 cases of gastrointestinal carcinoid tumors during a period of ten and a half years at Seoul National University Hospital, looking at their histologic and ultrastructural features, as well as immunohistochemical results, then we correlated these with location. The primary sites of carcinoid tumors were rectum(39%), stomach(25%), appendix(22%), small intestine(8%) and colon(6%), in order of frequency. The predominant histologic types by organ were mixed and solid(A) types in all location, the solid type(type A) in the stomach, and tubular type(type C) in the rectum. Six out of 8 cases of appendiceal carcinoid were type A and the other two cases were mucinous carcinoid. Tubular adenoma or adenocarcinoma was associated with 36% of the rectal carcinoids, with one case of carcinoid in the small intestine, and one(11%) of the gastric carcinoids was found near an adenocarcinoma. Metastasis was found in one case of ileal carcinoid(100%), one case of cecal carcinoid, 3 of gastric carcinoid(33%) and 2 of rectal carcinoid(14%).
Primary tumor size ranged from 1 to 7 cm. Tumor necrosis and endolymphatic tumor emboli were found in 57% and 43% of the metastatic carcinoids, respectively. PCNA index showed a borderline significant difference between metastatic and nonmetastatic groups(P value=0.063). The low prevalence of appendiceal carcinoid and the relatively high prevalence of gastric-rectal carcinoid may reflect a low chance of incidental appendectomy and frequent detection of gastrointestinal endoscopy.
- Extracranial Meningioma in Parotid Area: A case report.
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Kyeong Cheon Jung, Je G Chi, Eui Keun Ham
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Korean J Pathol. 1994;28(6):673-674.
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- Meningioma is one of the most common intracranial tumor in adult. The tumor, however, occurs very rarely outside the central neuraxis, such as orbit, nasal cavity of parotid area. We report a case of extracranial meningioma in the parotid area. A 38-year-old man was presented with a round mass in the left parotid area. Magnetic resonance imaging revealed a round mass attached to anterior pole of the left parotid. The mass was easily separated from facial nerve.
Microscopically, the mass was composed of ovoid or spindle cells. The tumor cells tended to show bundle formation, lobular arrangement and occasionally whorling appearance.
This case is important at the means that meningioma should be included in differential diagnosis of mass in the parotid area.
- Gagtric Adenocarcinoma with Choriocarcinomatous and Hepatoid Differentiation: Report of a case.
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Kyeong Cheon Jung, Woo Ho Kim, Yong Il Kim, Kook Jin Choe
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Korean J Pathol. 1994;28(4):409-413.
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- Association of the hepatoid and choriocarcinomatous components in adenocarcinoma of the stomach is extremely unusual and raises a possibility of new approach understand the histogenesis of gastric hepatoid adenocarcinoma. This paper describes a Borrmann type III adenocarcinoma of the stomach with both choriocarcinomatous and hepatoid components in composite tumor pattern in a 50-year-old man.
Tubular arrangement of differentiated embryonalcarcinoma was encountered in choricarcinomatous and hepatoid areas, which showed strong immunoreactivity to beta-HCG and AFP, respectively. The findings suggest that gastric adenocarcinoma may have a potential of differentiation toward embryonal carcinoma. from which both choriocarcinoma and hepatoid variant of gastric adenocarcinoma may develop by retrodifferentiation.
- Cystic Adventitial Disease of the Popliteal Artery: A case report.
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Soo Min Kang, Kyeong Cheon Jung, Je G Chi
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Korean J Pathol. 1993;27(4):418-420.
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- Localized cystic degeneration of peripheral arteries represents and unusual cause of arterial insufficiency. It frequently occurs in patient without generalized arteriosclerosis. It has been reported in patients from age 11 to 62 years. Cystic adventitial disease is most common in the popliteal artery. At least 115 cases have been reported worldwide, but none in Korea. We report a case of cystic adventitial disease involving the left popliteal artery.
This 64-year-old man presented with an 18-month history of cramping pain of sudden onset in the left calf and claudication. Angiographic findings showed a 6 cm length of luminal obliteration of the popliteal artery. Segmentally resected popliteal artery showed two longitudinally directed cystic masses measuring 3.5x1.5 cm and 2.5x1.5 cm in the adventitia. Microscopic examination revealed cystic space in the arterial adventitia compressing arterial lumen. There were a number of foamy histiocytes collected along the cystic lumen.
- Nephroblastomatosis Associated with Wilms' Tumor.
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Kyeong Cheon Jung, Sang Yong Song, Yeon Lim Suh, Je G Chi, Hwang Choi
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Korean J Pathol. 1993;27(3):274-278.
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- In contrast to the nodular renal blastema which is defined by nests of primitive metanephric cells after 36 weeks of gestation, the nephroblastomatosis is characterized by neoplastic proliferation of the primitive cells. This lesion is presumed to be closely related to the development of Wilms' tumor. We report a case of bilateral nephroblastomatosis associated with Wilms' tumor in a child.
This 4 1/2 year-old girl was admitted because of a 10 cm-sized round mass in the right kidney, and smaller nodules in the left kidney and the lung. After three cycles of chemotherapy and subsequent disappearance of the nodules in the left kidney and lung, she underwent a right nephrectomy and a wedge resection of the left kidney. A round Wilms' tumor mass was seen in the lower pole of the right kidney.
Remaining right renal cortex showed multiple, slightly depressed gray-white nodules associated with multiple samll cysts. They were comprised of multifocal subcapsular nests of primitive nephrogenic cells with focal tubular or glomerular differentiation. They resembled fetal renal tissue. In the left kidney, similar nests of primitive cells were also noted. These lesions were interpreted as multifocal perilobar type of nephroblastomatosis.
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