Journal of Pathology and Translational Medicine

Brief Case Report

Lymphoepithelioma-like Carcinoma of the Renal Pelvis: A Case Report and Review of the Literature: Hyein Ahn, Jongmin Sim, Hyunsung Kim, Kijong Yi, Hulin Han, Yumin Chung, Abdul Rehman, Seung Sam Paik; Korean J Pathol. 2014;48(6):458-461. Published online December 31, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.6.458

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Analysis of genetic profiling, pathomics signature, and prognostic features of primary lymphoepithelioma‐like carcinoma of the renal pelvis
Bo Fan, Yuanbin Huang, Hongshuo Zhang, Tingyu Chen, Shenghua Tao, Xiaogang Wang, Shuang Wen, Honglong Wang, Zhe Lin, Tianqing Liu, Hongxian Zhang, Tao He, Xiancheng Li
Molecular Oncology.2022; 16(20): 3666. CrossRef
Lymphoepithelioma-like carcinoma of the upper urinary tract: A systematic review of case reports
Shi-Cong Lai, Samuel Seery, Wei Zhang, Ming Liu, Guan Zhang, Jian-Ye Wang
World Journal of Clinical Cases.2020; 8(4): 771. CrossRef
Rare primary lymphoepithelioma-like carcinoma of the renal pelvis
Shi-Cong Lai, Samuel Seery, Tong-Xiang Diao, Jian-Ye Wang, Ming Liu
World Journal of Clinical Cases.2020; 8(9): 1752. CrossRef
Eight-year follow-up of locally advanced lymphoepithelioma-like carcinoma at upper urinary tract: A case report
Che H Yang, Wei C Weng, Yi S Lin, Li H Huang, Chin H Lu, Chao Y Hsu, Yen C Ou, Min C Tung
World Journal of Clinical Cases.2020; 8(19): 4505. CrossRef
Lymphoepithelioma-like, a variant of urothelial carcinoma of the urinary bladder: a case report and systematic review for optimal treatment modality for disease-free survival
Andy W. Yang, Aydin Pooli, Subodh M. Lele, Ina W. Kim, Judson D. Davies, Chad A. LaGrange
BMC Urology.2017;[Epub] CrossRef

Original Articles

Evaluation of cytopathologic diagnosis of lung carcinoma.: In Ae Park, Eui Keun Ham; Korean J Cytopathol. 1991;2(1):20-27.

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Abstract PDF: In order to evaluate the role of cytopathologic diagnosis of sputum, bronchial washing and bronchial brushing in the diagnosis of lung cancer, we performed this study. The patients included in this study had undergone sputum, bronchial washing and brushing cytology over the 20-month period of 1985 through 1987. The total number of specimens was 5,495 of 2,242 patients, including 4,830 sputa and 665 bronchial washing and brushings. The average number of sputa and bronchial washings and brushings per case was 2.4 and 1.2 respectively. Among them, about 10% were unsatisfactory specimen, and three-fourths were negative specimens. In sputum cytology, the diagnosis of "atypical cells" was given to 3%, "suspicious for malignancy" was given to 1 %, and "malignancy" was given to 13%. In bronchial washing and brushing cytology, the diagnosis of "atypical cells", "suspicious for malignancy" and malignancy" was given to 6%, 3%, and 20% respectively. The cases diagnosed as "atypical cells" in cytology were actually malignancy in 95% and 84.8% of sputum and bronchial washing and brushings respectively, and the "suspicious for malignancy" were actually malignancy in 100% in both methods. The detection rates of malignancy were 50.4% and 55.2% in sputum and bronchial washing and brushing respectively, and the specificity was 100% in both methods. The accuracy of cell typing was 92% in sputum and 89.7% in bronchial washing and brushing.

Diagnostic Accuracy of Cervicovaginal Cytology in the Detection of Squamous Epithelial Lesions of the Uterine Cervix; Cytologic/Histologic Correlation of 481 Cases.: So Young Jin, Sang Mo Park, Mee Sun Kim, Yoon Mi Jeen, Dong Won Kim, Dong Wha Lee; Korean J Cytopathol. 2008;19(2):111-118.; DOI: https://doi.org/10.3338/kjc.2008.19.2.111

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BACKGROUND
Cervicovaginal cytology is a screening test of uterine cervical cancer. The sensitivity of cervicovaginal cytology is less than 50%, but studies of cytologic/histologic correlation are limited. We analyzed the diagnostic accuracy of cervicovaginal cytology in the detection of the squamous epithelial lesions of the uterine cervix and investigate the cause of diagnostic discordance. MATERIALS AND METHODS: We collected a total of 481 sets of cervicovaginal cytology and biopsies over 5 years. The cytologic diagnoses were categorized based on The Bethesda System and the histologic diagnoses were classified as negative, flat condyloma, cervical intraepithelial neoplasia (CIN) I, CIN II, CIN III, or squamous cell carcinoma. Cytohistologic discrepancies were reviewed.
RESULTS
The concordance rate between the cytological and the histological diagnosis was 79.0%. The sensitivity and specificity of cervicovaginal cytology were 80.6% and 92.6%, respectively. Its positive predictive value and negative predictive value were 93.7% and 77.7%, respectively. The false negative rate was 19.4%. Among 54 false negative cytology cases, they were confirmed by histology as 50 flat condylomas, 2 CIN I, 1 CIN III, and 1 squamous cell carcinoma. The causes of false negative cytology were sampling errors in 75.6% and interpretation errors in 24.4%. The false positive rate was 7.4%. Among 15 false positive cytology cases, they were confirmed by histology as 12 atypical squamous cells of undetermined significance (ASCUS) and 3 low grade squamous intraepithelial lesions (LSIL). The cause of error was interpretation error in all cases. The overall diagnostic accuracy of cervicovaginal cytology was 85.7%.
CONCLUSIONS
Cervicovaginal cytology shows high overall diagnostic accuracy and is a useful primary screen of uterine cervical cancer.

Citations

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Overall accuracy of cervical cytology and clinicopathological significance of LSIL cells in ASC‐H cytology
S. H. Kim, J. M. Lee, H. G. Yun, U. S. Park, S. U. Hwang, J.‐S. Pyo, J. H. Sohn
Cytopathology.2017; 28(1): 16. CrossRef
Correlation Analysis Between Cervicovaginal Cytologic and Histopathologic Diagnoses in Cervical Squamous Cell Neoplasm
Kyoung Bun Lee, Woon Sun Park, Jin Hee Sohn, Min Kyung Kim, Dong Hoon Kim, Hee Sung Kim, Seoung Wan Chae, Sung Hee Kang, Young Hye Cho, Hee Dae Pak, Sun Hee Kim
The Korean Journal of Pathology.2009; 43(2): 157. CrossRef

Maximal Diagnostic Accuracy in Virtual Telepathology System according to Input Device and Video Signal.: Rae Woong Park, Hee Jae Joo, Hyunee Yim, Yoon Mi Jin, Kyi Beom Lee; Korean J Pathol. 1999;33(12):1191-1198.

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Abstract PDF: Varieties of telepathology system had been developed and in use, but their functional capability and diagnostic accuracy are considered to be inferior to those of conventional optical microscope. This study is intended to find out: 1) the diagnostic accuracy and reproducibility rate according to the input devices and the video signals; 2) any potential technical problems of the telepathology system; 3) any possible physical and psychological impacts. We devised a virtual telepathology system using our existing microscope equipped with CCD camera unit that has no restriction of network speed. Total fifty-five surgical pathology cases from 11 different organs were selected. Three pathologists were involved in making diagnoses. The resulting diagnostic accuracies were: 1 CCD camera with composite video signal was 86.2%; 3 CCD camera with composite video signal was 93.1%; 3 CCD camera with component video signal was 95.0%. The 3 CCD camera with component video signal resulted in 95.0% diagnostic accuracy and was superior to 1 CCD camera with composite video signal. Some technical problems noted during this study were: the visual field of the virtual telepathology system was smaller by 43% than that of microscope; the difference of cell sizes between microscope and monitor; low resolution of image. Some physical and psychological symptoms were noted.

Transthoracic Fine Needle Aspiration Cytology of the Lung .: Min Suk Kim, In Ae Park, Sun Hoo Park, Sung Shin Park, Hwal Wong Kim, Kyung Chul Moon, Young Ah Kim, Hye Seung Lee, Ki Wha Park, Jeong wook Seo, Hyun Soon Lee, Eui Keun Ham; Korean J Cytopathol. 1999;10(1):13-19.

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Abstract PDF: The authors analysed 2,653 cases of transthoracic fine needle aspiration cytology of the lung to evaluate the diagnostic accuracy and its limitation. A comparison was made between the original cytologic and the final histologic diagnoses on 1,149 cases from 1,074 patients. A diagnosis of malignancy was established in 38.3% benign in 48.1%, atypical lesion in 2.3%, and inadequate one in 11.9% of the cases. Statistical data on cytologic diagnoses were as follows; specificity 98.9%: sensitivity of procedure, 76.8%: sensitivity of diagnosis, 95.5%: false positive 5 cases: false negative 18 cases: predictive value for malignancy, 98.8%: predictive value for benign lesion, 79.5%: overall diagnostic efficiency, 87.5%: typing accuracy in malignant tumor, 80%.

Fine Needle Aspiration Cytology of Thyroid Nodules: Assessment of diagnostic accuracy and evaluation of each cytologic diagnosis .: In Ae Park, Eui Keun Ham; Korean J Cytopathol. 1999;10(1):43-53.

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Abstract PDF: We retrospectively reviewed the results of 1,850 fine needle aspiration cytology (FNAC) of thyroid nodules performed from 1990 to 1991 in the Department of Pathology, Seoul National University Hospital. Among 1,528 cases and 322 cases aspirated by clinicians and a pathologist, 465 cases(30.4%) and 13 cases(4.0%) of the aspirates were inadequate, respectively. In 227 cases, correlation of the FNAC diagnosis and histologic diagnosis was done. Excluding the inadequate cases, the sensitivity for the detection of neoplasm(malignancy together with follicular adenoma) was 86.4% and the specificity was 70.7%. The overall diagnostic accuracy was 79.0%. There were 16 false-positive cases(7.0%), and 19 false-negative cases(8.4%). The predictive value of each cytologic diagnosis was 92% in papillary carcinoma, and 100% in Hashimoto's thyroiditis. The expectancy of malignancy was 52.8% in "suspicious malignancy" and 26.7% in "atypical lesion".

Fine Needle Aspiration Cytology of the Salivary Gland: An analysis of 221 cases .: Ayoung Park, Hee Kyoung Kim, Dong Won Kim, So Young Jin, Dong Wha Lee; Korean J Cytopathol. 1999;10(2):133-143.

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Abstract PDF: Fine needle aspiration cytology of the salivary lesions was performed on 221 patients at Soonchunhyang University Hospital for 10 years. Of 221 aspirates, 6 aspirates(2.7%) were inadequate, 116 cases(52.5%) were non-neoplastic lesions, 76(34.4%) cases were benign neoplasms and 23 cases(10.4%) were malignant neoplasms. The cytologic diagnoses could be correlated with histologic findings in 58 cases. FNAC correctly discriminated between neoplastic and nonneoplastic lesions in fifty-seven lesions and failed in a case, and overall accuracy, sensitivity, and specificity were 98.3%, 98.0%, and 100.0%. FNAC correctly discriminated malignant neoplasms from benign neoplastic/non- neoplastic lesions in fifty-three cases and failed in five cases, and overall accuracy, sensitivity, and specificity were 91.3%, 72.7%, and 95.7%. Among three false negative cases, two mucoepidermoid carcinomas were misdiagnosed as mucocele and benign neoplasm, and an acinic cell carcinoma were misdiagnosed as Warthin's tumor. Two false positive cases were a Warthin's tumor misdiagnosed as squamous cell carcinoma and a pleomorphic adenoma misinterpretated as suggestive of malignancy. In conclusion, diagnostic accuracy of FNAC of salivary lesions is high, and the possibilities of low grade mucoepidermoid carcinoma and acinic cell carcinoma should be considered on hypocellular smears with mucoid or fluidy background.

Diagnostic Sensitivity of Sputum and Bronchial Washing Cytology in Bronchogenic Carcinomas Confirmed by Bronchoscopic Biopsy .: Joon Mee Kim, Soo Kee Min, Young Chae Chu, Chul Ho Cho; Korean J Cytopathol. 2001;12(1):17-23.

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Abstract PDF: To evaluate the role of sputum and bronchial washing for the diagnosis of lung carcinoma, we studied the sensitivity of both cytologic techniques using the biopsy confirmed cases from 228 patients. Among them, 123 cases were squamous cell carcinomas, 42 cases were adenocarcinomas, 48 cases were small cell carcinomas, one case was large cell carcinoma, and 14 cases were other types of carcinoma including poorly differentiated carcinomas. Three hundreds and ninety two sputa and 173 sputa were obtained in the pre- and post- bronchoscopic periods. Bronchial washing had been taken once in each patient. The overall sensitivity of the sputum cytology was 0.52 and that of the bronchial washing 0.63, while it increased to 0.83 when a combination of both techniques. Squamous cell carcinomas were diagnosed to the great extent in which sensitivities were 0.59 and 0.74, in sputum and bronchial washing, respectively. The post-bronchoscopic sputa showed higher sensitivity (0.44) than pre-bronchoscopic sputa (0.30). The sensitivity of sputa increased from 0.34 to 0.49 when three samples were examined compared to the single examination. The accuracy of cell typing was 94.0% in sputa and 93.8% in bronchial washing. Repeated sputum examination including post- bronchoscopic sputa is warranted to improve sensitivity and a complementary role of both cytologic techniques can be postulated by these data.

Diagnostic Correlation and Accuracy Between Fine Needle Aspiration Cytology and Histopathologic Examination.: Jin Hee Sohn, Seoung Wan Chae, Eun Yoon Cho, Eo Jin Kim; Korean J Cytopathol. 2003;14(2):53-59.

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Abstract PDF: Fine needle aspiration cytology (FNAC) has been known as a very sensitive and effective method for preoperative diagnosis. We studied cases preoperatively diagnosed by FNAC and confirmed by the histopathologic examination to define the effectiveness of FNAC. A total of 567 cases including breast, thyroid gland, lymph node, and soft tissue confirmed histologically after FNAC were enrolled, among 2,844 FNAC cases from January 1996 to March 2000. Overall sensitivity and specificity of FNAC were 93% and 100%, respectively. Sensitivity and specificity of FNAC by sites or organs were 91% and 100% in breast, 100% and 100% in thyroid, 97% and 100% in lymph node, and 71% and 100% in soft tissue, respectively. Nine cases showed diagnostic discrepancy; eight cases of sampling error and one case of interpretation error. Five cases, diagnosed as fibrocystic change at FNAC but invasive ductal carcinoma after the histopathologic examination, were categorized as sampling error due to the presence of diffuse fibrosis or deep seated location. One case of breast, diagnosed descriptively as atypical ductal and stromal cells suggesting invasive ductal carcinoma at FNAC but malignant phyllodes tumor histologically, was categorized as interpretation error. Other cases of sampling errors were two cases of soft tissue, a case of lymph node, and a case of salivary gland.

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