- Preoperative Cytologic Diagnosis of Warthin-like Variant of Papillary Thyroid Carcinoma
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Jisup Kim, Beom Jin Lim, Soon Won Hong, Ju Yeon Pyo
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J Pathol Transl Med. 2018;52(2):105-109. Published online February 12, 2018
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DOI: https://doi.org/10.4132/jptm.2017.12.26
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 Abstract
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- Background
Warthin-like variant of papillary thyroid carcinoma (WLV-PTC) is a relatively rare variant of papillary thyroid carcinoma with favorable prognosis. However, preoperative diagnosis using fine-needle aspiration (FNA) specimens is challenging especially with lymphocytic thyroiditis characterized by Hürthle cells and lymphocytic background. To determine a helpful cytological differential point, we compared WLV-PTC FNA findings with conventional papillary thyroid carcinoma with lymphocytic thyroiditis (PTC-LT) and conventional papillary thyroid carcinoma without lymphocytic thyroiditis (PTC) regarding infiltrating inflammatory cells and their distribution. Preoperative diagnosis or potential for WLV-PTC will be helpful for surgeons to decide the scope of operation.
Methods
Of the 8,179 patients treated for papillary thyroid carcinoma between January 2007 and December 2012, 16 patients (0.2%) were pathologically confirmed as WLV-PTC and four cases were available for cytologic review. For comparison, we randomly selected six PTC-LT cases and five PTC cases during the same period. The number of intratumoral and background lymphocytes, histiocytes, neutrophils, and the presence of giant cells were evaluated and compared using conventional smear and ThinPrep preparations.
Results
WLV-PTC showed extensive lymphocytic smear with incorporation of thyroid follicular tumor cell clusters and frequent histiocytes. WLV-PTC was associated with higher intratumoral and background lymphocytes and histiocytes compared with PTC-LT or PTC. The difference was more distinct in liquid-based cytology.
Conclusions
The lymphocytic smear pattern and the number of inflammatory cells of WLV-PTC are different from those of PTC-LT or PTC and will be helpful for the differential diagnosis of WLV-PTC in preoperative FNA.
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Citations
Citations to this article as recorded by  - Challenges in Cytology Specimens With Hürthle Cells
Eleni Thodou, Sule Canberk, Fernando Schmitt
Frontiers in Endocrinology.2021;[Epub] CrossRef - Warthin-like variant of Papillary thyroid carcinoma—Case report of an uncommon tumour with review of literature
Pradyumna Kumar Sahoo, Rashmi Patnayak, Perwez Alam Khan, Amitabh Jena
International Journal of Surgery Case Reports.2020; 77: 9. CrossRef
- A Rare Case of Aggressive Melanotic Schwannoma Occurred in Spinal Nerve of a 59-Year-Old Male
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Sung-eun Choi, Yoon Jin Cha, Jisup Kim, Hyunseo Cha, Jayeong Seo, Sung-Uk Kuh, Sung-Jun Kim, Se Hoon Kim
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J Pathol Transl Med. 2017;51(5):505-508. Published online April 4, 2017
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DOI: https://doi.org/10.4132/jptm.2017.01.04
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11,151
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Abstract
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- Melanotic schwannoma (MS) is a rare variant of nerve sheath neoplasm that shows ultrastructural and immunophenotypical features of Schwann cells but also has cytoplasmic melanosomes and is reactive for melanocytic markers as well. Unlike conventional schwannoma, which is totally benign, MS has an unpredictable prognosis and is thought to have low-malignant potential. Herein, we present a rare case of recurrent MS in lumbar spine of a 59-year-old male.
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Citations
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Frontiers in Oncology.2023;[Epub] CrossRef - Fine‐needle aspiration cytology of melanotic schwannoma in the submandibular gland
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