Journal of Pathology and Translational Medicine

Original Article

The Use of the Bethesda System for Reporting Thyroid Cytopathology in Korea: A Nationwide Multicenter Survey by the Korean Society of Endocrine Pathologists: Mimi Kim, Hyo Jin Park, Hye Sook Min, Hyeong Ju Kwon, Chan Kwon Jung, Seoung Wan Chae, Hyun Ju Yoo, Yoo Duk Choi, Mi Ja Lee, Jeong Ja Kwak, Dong Eun Song, Dong Hoon Kim, Hye Kyung Lee, Ji Yeon Kim, Sook Hee Hong, Jang Sihn Sohn, Hyun Seung Lee, So Yeon Park, Soon Won Hong, Mi Kyung Shin; J Pathol Transl Med. 2017;51(4):410-417. Published online June 14, 2017; DOI: https://doi.org/10.4132/jptm.2017.04.05

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Background
The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) has standardized the reporting of thyroid cytology specimens. The objective of the current study was to evaluate the nationwide usage of TBSRTC and assess the malignancy rates in each category of TBSRTC in Korea.
Methods
Questionnaire surveys were used for data collection on the fine needle aspiration (FNA) of thyroid nodules at 74 institutes in 2012. The incidences and follow-up malignancy rates of each category diagnosed from January to December, 2011, in each institute were also collected and analyzed.
Results
Sixty out of 74 institutes answering the surveys reported the results of thyroid FNA in accordance with TBSRTC. The average malignancy rates for resected cases in 15 institutes were as follows: nondiagnostic, 45.6%; benign, 16.5%; atypical of undetermined significance, 68.8%; suspicious for follicular neoplasm (SFN), 30.2%; suspicious for malignancy, 97.5%; malignancy, 99.7%.
Conclusions
More than 80% of Korean institutes were using TBSRTC as of 2012. All malignancy rates other than the SFN and malignancy categories were higher than those reported by other countries. Therefore, the guidelines for treating patients with thyroid nodules in Korea should be revisited based on the malignancy rates reported in this study.

Citations

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Xiaoli Liu, Jingjing Wang, Wei Du, Liyuan Dai, Qigen Fang
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Butheinah A. Al-Sharafi, Jamila A. AlSanabani, Ibraheem M. Alboany, Amani M. Shamsher
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Case Report

Adenolipoma of the Skin Arising at Neck Region: Hyun Seung Lee, Yoon Sang Song; Korean J Pathol. 2012;46(6):587-589. Published online December 26, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.6.587

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Abstract PDF

We report here a case of adenolipoma of the skin, an unusual variant of lipoma, arising on the neck. A 56-year-old man visited our hospital due to an anterior neck mass. An excisional biopsy was performed. The mass revealed a tan-yellow soft cut surface. We could not find any difference from other lipoma on gross inspection. Microscopically, the mass showed proliferation of mature adipocytes admixed with several eccrine units. The eccrine units were demonstrated by periodic acid-Schiff-positive granules in the secretory portions and by positivity of smooth muscle actin in the myoepithelial cells surrounding the eccrine glands. The tumor was completely excised, and the patient has been followed up without any evidence of recurrence so far.

Citations

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Adenolipoma of the Skin: A Report of 11 Cases
Rawan Amir, Salwa Sheikh
Case Reports in Dermatology.2018; 10(1): 76. CrossRef

Original Article

Comparison of Various Detection Methods of Mycobacterium Species in Formalin-Fixed Paraffin-Embedded Tissue with Chronic Granulomatous Inflammation.: Hyun Seung Lee, Hyoungnam Lee, Soyoung Im, Yun Su Lee, Kyo Young Lee, Yeong Jin Choi; Korean J Pathol. 2010;44(3):259-266.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.3.259

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Abstract PDF

BACKGROUND
To determine the most effective method for detecting mycobacteria in formalin- fixed paraffin-embedded (FFPE) tissue, we compared the results of Ziehl-Neelsen stain (ZNS) and mycobacterial culture with those of polymerase chain reaction (PCR) and real-time quantitative PCR (RQ-PCR).
METHODS
We analyzed 54 cases diagnosed as chronic granulomatous inflammation. In all cases, ZNS and nested PCR using three different primers, IS6110, Mpb64 and IS6110/Rpobeta were done. RQ-PCR with the IS6110/Rpobeta primer was done in 51 cases.
RESULTS
Mycobacteria were identified by ZNS in 15/54 (27.8%) cases. RQ-PCR had the highest sensitivity (80.0%) compared to PCR with IS6110 (73.3%), Mpb64 (60.0%) and IS6110/Rpobeta (73.3%). Specificity was higher in all PCR experiments (79.5-82.1%) than in RQ-PCR (69.4%) experiments. The false negative rate was lowest for RQ-PCR (20.0%) than for PCR with IS6110 (26.7%), Mpb64 (40.0%) and IS6110/Rpobeta (26.7%). The false positive rate was highest for RQ-PCR (30.6%) compared to PCR with IS6110 (20.5%), Mpb64 (17.9%) and IS6110/Rpobeta (20.5%).
CONCLUSIONS
RQ-PCR had the highest sensitivity, and the lowest false negative rate, but it also had a higher false positive rate than PCR for detection of mycobacteria in FFPE tissues.

Citations

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Yo Na Kim, Kyoung Min Kim, Ha Na Choi, Ju Hyung Lee, Ho Sung Park, Kyu Yun Jang, Woo Sung Moon, Myoung Jae Kang, Dong Geun Lee, Myoung Ja Chung
The Journal of Molecular Diagnostics.2015; 17(5): 597. CrossRef
Usefulness of PCR to Mycobacterium Tuberculous and Nontuberculous Mycobacteria from Paraffin-embedded Tissues
Yeon-Il Choi, Hye-Young Kim
Korean Journal of Clinical Laboratory Science.2014; 46(2): 47. CrossRef

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