Journal of Pathology and Translational Medicine

Sanghui Park

8 Articles

Morphometric Analysis for Pulmonary Small Cell Carcinoma Using Image Analysis.: Sun Min Jeong, Seung Yeon Ha, Jungsuk An, Hyun Yee Cho, Dong Hae Chung, Na Rae Kim, Sanghui Park; Korean J Pathol. 2011;45(1):87-91.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.1.87

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BACKGROUND
There are few studies of how to diagnose small cell lung cancer in cytological tests through morphometric analysis. We tried to measure and analyze characteristics of small cell carcinoma in lung by image analysis.
METHODS
We studied three types of cytologic specimens from 89 patients who were diagnosed with small cell lung cancer by immunohistochemistry. We measured area, perimeter, maximal length and maximal width of cells from small cell carcinoma using image analysis.
RESULTS
In lung aspirates, the nuclear mean area, perimeter, maximal length and maximal width of small cell lung cancer were 218.69 microm2, 55 microm, 18.48 microm and 14.65 microm. In bronchial washings, nuclear measurements were 194.66 microm2, 50.07 microm, 16.27 microm and 14.1 microm. In pleural fluid, values were 177.85 microm2, 48.09 microm, 15.7 microm and 13.37 microm.
CONCLUSIONS
Nuclear size of small cell lung carcinoma is variable and depends on the cytology method. Nuclei are spindle-shaped and larger in small cell carcinoma from lung aspirates than in bronchial washings or pleural fluid. The cytoplasms of the cells in bronchial washings and pleural fluid were swollen. Therefore, one should consider morphologic changes when trying to diagnose small cell lung cancer through cytological tests.

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Interobserver Variability in Diagnosing High-Grade Neuroendocrine Carcinoma of the Lung and Comparing It with the Morphometric Analysis
Seung Yeon Ha, Joungho Han, Wan-Seop Kim, Byung Seong Suh, Mee Sook Roh
Korean Journal of Pathology.2012; 46(1): 42. CrossRef

The Analysis and Clinical Usefulness of HPV DNA Chip Test in the Uterine Cervix.: Joo hyeon Jeong, Hyun Yee Cho, Na Rae Kim, Dong Hae Chung, Sanghui Park, Seung Yeon Ha; Korean J Pathol. 2010;44(1):77-82.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.1.77

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Abstract PDF

BACKGROUND
The genotypes of human papillomavirus (HPV) are important in carcinogenesis in uterine cervical cancer and may be different in geographic distribution.
METHODS
In 2,086 women, we analyzed the prevalence of HPV and HPV genotypes in uterine cervix by HPV-DNA chip test (n = 2,086), cytology (PAP smear, n = 1997) and biopsy (n = 546).
RESULTS
Of the 2,086 cases, 1,019 cases (48.8%) were HPV-positive and 1,067 cases (51.2%) were negative for HPV. Single infection occurred most commonly (72.1% of women). HPV genotypes in the high-risk and low-risk groups, respectively were HPV-16/-58/-18/-52/-53 and HPV-70/-6/-11. The detection rates of HPV-70 in subjects older than 50 years increased significantly (p < 0.05). Infection in high risk subjects was detected in high grade lesions compared with infection in low risk subjects (p < 0.05).
CONCLUSIONS
HPV-16/-58/-18/-52/-53/-70/-6/-11 genotypes were common in the patient group similar to findings in East Asia. HPV-70 infection is predominant in those older than 40 years.

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Current Status of and Perspectives on Cervical Cancer Screening in Korea
Sung-Chul Lim, Chong Woo Yoo
Journal of Pathology and Translational Medicine.2019; 53(4): 210. CrossRef
Cervical cytology of atypical squamous cells, cannot exclude high-grade squamous intra-epithelial lesion: significance of age, human papillomavirus DNA detection and previous abnormal cytology on follow-up outcomes
Chang Ohk Sung, Young Lyun Oh, Sang Yong Song
European Journal of Obstetrics & Gynecology and Reproductive Biology.2011; 159(1): 155. CrossRef
Cytomorphologic Features According to HPV DNA Type in Histologically Proven Cases of the Uterine Cervix
In Ho Choi, So-Young Jin, Dong Wha Lee, Dong Won Kim, Yoon Mi Jeen
The Korean Journal of Pathology.2011; 45(6): 612. CrossRef

Ovarian Endometrioid Adenocarcinoma with a Yolk Sac Tumor Component.: Dong Hae Chung, Sanghui Park, Hee Eun Kyung, Na Rae Kim, Seung Yeon Ha, Soyi Lim, Hyun Yee Cho; Korean J Pathol. 2009;43(6):570-574.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.6.570

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Abstract PDF: Ovarian endometrioid adenocarcinoma (EAC) with a yolk sac tumor (YST) component is extremely rare. Only twelve cases have been reported in the English literature. We report here two additional cases of this rare tumor. The YST component showed classic microscopic features, and immunohistochemically stained positive for alpha-fetoprotein (AFP), but negative for cytokeratin 7 (CK7), epithelial membrane antigen (EMA), estrogen receptor (ER) and progesterone receptor (PR). The EAC appeared to blend into the YST in several areas and immunohistochemically stained positive for CK7, EMA, ER, and PR, but negative for AFP.

The Usefulness of the HPV DNA Microchip Test for Women with ASC-US.: Hee Eun Kyeong, Seung Yeon Ha, Dong Hae Chung, Na Rae Kim, Sanghui Park, Hyun Yee Cho; Korean J Pathol. 2009;43(3):254-259.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.3.254

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Abstract PDF

BACKGROUND
This study was performed to ascertain the usefulness of the human papillomavirus (HPV) DNA microchip test for the screening and management of women with atypical squamous cells of undetermined significance (ASC-US).
METHODS
The subject group consisted of 534 patients, and all of whom were diagnosed as ASC-US according to a Papanicolaou smear, and they all underwent concomitant HPV DNA microchip test.
RESULTS
The occurrence rates of overall squamous lesions and high risk lesion (cervical intraepithelial neoplasia grade 2 and grade 3, and invasive carcinoma) of the HPV-positive ASC-US patients were significantly higher than those of the HPV-negative ASC-US patients. High risk lesion was detected more frequently among the older patients and the patients with HPV 56, 33 or 70. On the follow-up HPV DNA microchip test, only 1 of 11 (9.1%) HPV type-switched women developed squamous lesion compared with 8 of 13 (61.6%) HPV type-persistent women who developed squamous lesion.
CONCLUSIONS
The HPV DNA microchip test is useful for the management of ASC-US patients. HPV-positive ASC-US patients should undergo a HPV DNA microchip test periodically. If the same genotype of HPV is persistent on the follow-up test, more increased surveillance is needed.

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Enhanced disease progression due to persistent HPV-16/58 infections in Korean women: a systematic review and the Korea HPV cohort study
Jaehyun Seong, Sangmi Ryou, JeongGyu Lee, Myeongsu Yoo, Sooyoung Hur, Byeong-Sun Choi
Virology Journal.2021;[Epub] CrossRef

Ectopic Liver Associated with the Gallbladder: A Brief Case Report.: Hee Eun Kyeong, Younghee Park, Sanghui Park; Korean J Pathol. 2008;42(2):128-130.

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Abstract PDF: Ectopic liver is a rare entity that has been previously identified during abdominal exploration for other surgery and this has usually been described in the vicinity of the liver such as on the gallbladder, hepatic ligaments, diaphragm, thoracic cavity, adrenal glands, pancreas, omentum, spleen, esophagus and umbilical cord. Most cases of ectopic liver reported in the literature were located in the gallbladder. We report here on a case of ectopic liver related to the gallbladder, and this was encountered during an elective laparoscopic cholecystectomy.

The Usefulness of Cervicovaginal Cytology as a Primary Screening Test.: Jae Hong Park, Seung Yeon Ha, Hyun Yee Cho, Dong Hae Chung, Na Rae Kim, Sanghui Park; Korean J Cytopathol. 2008;19(2):107-110.; DOI: https://doi.org/10.3338/kjc.2008.19.2.107

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Abstract PDF

We evaluated the usefulness of cervicovaginal cytology as a primary screening test by analyzing the cytologic and histological diagnoses of 2,254 women. Cervicovaginal cytology had 93.0% sensitivity, 86.1% specificity, 88.2% positive predictive value, and 91.7% of negative predictive value. Cervicovaginal cytology as a primary screening test showed much higher specificity but slightly lower sensitivity than HPV DNA testing. However, the sensitivity of cervicovaginal cytology will be improved continuously due to the development of liquid-based cytology. We regard cervicovaginal cytology as a good primary screening test for cervical intraepithelial neoplasia or carcinoma.

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Working Conditions that Impact the Workload of Cytotechnologists: A Study Calculating the Actual Man Power Required
Soo Il Jee, Yong Ho Ahn, Hwa-Jeong Ha, Jeong Eun Kang, Jun Ho Won
The Korean Journal of Clinical Laboratory Science.2021; 53(2): 174. CrossRef

Pulmonary Adenocarcinoma with a Micropapillary Pattern Detected by Bronchial Washing: A Brief Case Report.: Jae Hong Park, Seung Yeon Ha, Hyun Yee Cho, Dong Hae Chung, Na Rae Kim, Sanghui Park; Korean J Cytopathol. 2008;19(2):206-208.; DOI: https://doi.org/10.3338/kjc.2008.19.2.206

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Abstract PDF: Adenocarcinomas with micropapillary patterns are generally aggressive and show lymphotropism. Only a few reports on pulmonary adenocarcinoma with micropapillary patterns have described cytologic findings. A 70-year-old Korean woman was admitted to the hospital because of intermittent dry cough and chest pain. Cytology after bronchial washing showed neoplastic cells in small, angulated, cohesive clusters consisting of 3-20 cells without a fibrovascular core. The resected right middle lobe showed a tumor occupying almost the entire lobe. Histologically, about 90% of neoplastic cells proliferated with micropapillary morphology in the background of bronchioloalveolar carcinoma. Cytologic smears of a bronchial washing showing tumor cells in small, cohesive clusters without a fibrovascular core may indicate an adenocarcinoma with micropapillary pattern.

Renal Cell Carcinoma Associated with Xp11.2 Translocation: Clinicopathologic and Immunohistochemical Findings of 4 Cases.: Sanghui Park, Ji Eun Kwon, Yeon Lim Suh; Korean J Pathol. 2005;39(6):406-411.

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Abstract PDF: BACKGROUND
The new WHO classification includes the recently described renal cell carcinomas (RCC) that are associated with several different translocations, involving chromosome Xp11.2, and they all result in gene fusions involving the TFE3 gene. The authors describe the clinicopathologic and immunohistochemical findings of 4 patients who had the morphologic features of RCC with Xp11.2 translocations.
METHODS
Among 9 surgically resected and pathologically proven pediatric RCCs, 4 showed a typical RCC histopathology with the Xp11.2 translocation. Immunohistochemical stains were performed for TFE3, AE1/AE3, epithelial membrane antigen, vimentin, HMB45, S-100 protein and CD10.
RESULTS
The 4 study subjects included one male and 3 females, and their chief complaints were gross hematuria and abdominal pain. Histologically, the tumors showed two different histologic types: type 1 tumors (2 cases) that corresponded to those of ASPL-TFE3 RCC, and type 2 tumors (2 cases) that corresponded to PRCC-TFE3 RCC. Nuclear TFE3 immunostaining was seen in 3 cases. All the tumors were immunoreactive for CD10, and vimentin and cytokeratin were expressed in 3 cases and HMB-45 was expressed in 2 cases.
CONCLUSIONS
Our results show that significant numbers of pediatric RCC are translocation-related. Therefore, when one encounters an RCC in the pediatric population, the possibility of a translocation-related RCC should be kept in mind.

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