Journal of Pathology and Translational Medicine

Ilyeong Heo

3 Articles

Biliary Granular Cell Tumor: Changwon Jung, Ilyeong Heo, Sang Bum Kim, Sunhoo Park, Soo Youn Cho; J Pathol Transl Med. 2015;49(1):89-91. Published online January 15, 2015; DOI: https://doi.org/10.4132/jptm.2014.10.07

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Granular cell tumor of the gallbladder: case report and review of the literature
Walid E Abdelrahim, Salwa O Mekki, Fatima M A Ali, Sarra Ahmed H Mukhtar, Kamal E Elssidig, Elthir A G Khalil, Omer Alfarog
Journal of Surgical Case Reports.2019;[Epub] CrossRef
Malignant Granular Cell Tumor of the Bile Duct
Patrick L. Quinn, Eihab Abdelfatah, Mark A. Galan, Sushil K. Ahlawat, Ravi J. Chokshi
ACG Case Reports Journal.2019; 6(8): e00193. CrossRef
Multifocal granular cell tumour of the biliary tree
Felip Vilardell, Marina Pardina, Jorge Juan Olsina, Xavier Matias-Guiu
BMJ Case Reports.2018; 11(1): e226352. CrossRef
Solitary, multiple, benign, atypical, or malignant: the “Granular Cell Tumor” puzzle
Isidro Machado, Julia Cruz, Javier Lavernia, Antonio Llombart-Bosch
Virchows Archiv.2016; 468(5): 527. CrossRef

Fine Needle Aspiration Cytology of Parathyroid Lesions: Ilyeong Heo, Sunhoo Park, Chang Won Jung, Jae Soo Koh, Seung-Sook Lee, Hyesil Seol, Hee Seung Choi, Soo Youn Cho; Korean J Pathol. 2013;47(5):466-471. Published online October 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.5.466

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Background

There has been an increase in the use of fine needle aspiration cytology (FNAC) for the diagnosis of parathyroid lesions (PLs). Differentiation between a thyroid lesion and a PL is not easy because of their similar features. We reviewed parathyroid aspirates in our institution and aimed to uncover trends in diagnostic criteria.

Methods

We selected 25 parathyroid aspirates (from 6 men and 19 women) confirmed surgically or immunohistochemically from 2006 to 2011.

Results

Major architectural findings of PLs include scattered naked nuclei, loose clusters, a papillary pattern with a fibrovascular core, tight clusters, and a follicular pattern. These architectures were commonly admixed with one another. Cytological features included anisokaryosis, stippled chromatin, a well-defined cell border, and oxyphilic cytoplasm. Eighteen of the 25 patients were diagnosed with PL using FNAC. Seven patients had been misdiagnosed with atypical cells (n=2), benign follicular cells (n=2), adenomatous goiter (n=2) and metastatic carcinoma (n=1) in FNAC. Using clinicoradiologic data, the sensitivity of the cytological diagnosis was 86.7%. The cytological sensitivity decreased to 50% without this information.

Conclusions

FNAC of PL is easily confused with thyroid lesions. A combination of cytological parameters and clinical data will be required to improve the diagnostic sensitivity of PLs.

Citations

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A nonfunctioning parathyroid carcinoma misdiagnosed as a follicular thyroid nodule
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World Journal of Surgical Oncology.2015;[Epub] CrossRef

Primary Monophasic Synovial Sarcoma Arising in the Mesentery: Case Report of an Extremely Rare Mesenteric Sarcoma Confirmed by Molecular Detection of a SYT-SSX2 Fusion Transcript: Han Suk Ryu, Ilyeong Heo, Jae Soo Koh, Sung-Ho Jin, Hye Jin Kang, Soo Youn Cho; Korean J Pathol. 2012;46(2):187-191. Published online April 25, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.2.187

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Synovial sarcoma arises in the para-articular tissues, and it can also occur in various unexpected sites. We report a rare case of primary monophasic synovial sarcoma (MSS) arising in the mesentery. A 59-year-old man presented with a palpable abdominal mass. On microscopic examination, the entire tumor comprised a dense proliferation of the spindle cells without epithelial components. The tumor cells were positive for transducin-like enhancer of split 1, bcl-2, epithelial membrane antigen and CD99 but negative for CD34, CD117, alpha-smooth muscle actin, cytokeratin, and calretinin on immunohistochemistry. The reverse transcriptase-polymerase chain reaction revealed a single 151-bp fragment representing the SYT-SSX2 fusion transcript. Because mesenteric MSS is extremely rare and many cases display histologic findings that overlap with those of more frequently involved tumors such as hemangiopericytoma and gastrointestinal stromal tumor, there is a chance of making an incorrect diagnosis that can result in an inappropriate treatment.

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