Korean Journal of PathologyPub Date : 2014-08-01Epub Date: 2014-08-26DOI: 10.4132/KoreanJPathol.2014.48.4.319
Hye Jeong Kim, Jong In Na, Ji Shin Lee, Dong Hyeok Cho, Jin Seong Cho
{"title":"Inflammatory myofibroblastic tumor of the thyroid gland: a brief case report.","authors":"Hye Jeong Kim, Jong In Na, Ji Shin Lee, Dong Hyeok Cho, Jin Seong Cho","doi":"10.4132/KoreanJPathol.2014.48.4.319","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.4.319","url":null,"abstract":"Inflammatory myofibroblastic tumor (IMT), also known as inflammatory pseudotumor (IPT) or plasma cell granuloma (PCG), is a histologically distinctive lesion that occurs primarily in the viscera and soft tissue, but has been reported in nearly every site in the body.1 Until now, only 19 cases of IMT that have involved the thyroid have been reported in the English literature.2 Moreover, most cases in the thyroid have been described as cases of PCG,2 and the myofibroblastic component in the thyroid cases is usually not prominent. Only one case has reported IMT of the thyroid gland.3 This study reports and discusses the differential diagnosis of an IMT of the thyroid gland that occurred in a 50-year-old Korean woman and which showed a predominantly myofibroblastic proliferation.","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 4","pages":"319-22"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.4.319","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32662800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Korean Journal of PathologyPub Date : 2014-08-01Epub Date: 2014-08-26DOI: 10.4132/KoreanJPathol.2014.48.4.327
Shin Young Park, Moon Hyang Park, Hyoung Suk Ko, Eun Jung Cha, Jang Sihn Sohn, Un Suk Jung, Chul Jung Kim, Jin Suk Kim
{"title":"Dedifferentiated endometrioid adenocarcinoma of the uterus: highly aggressive and poor prognostic tumor.","authors":"Shin Young Park, Moon Hyang Park, Hyoung Suk Ko, Eun Jung Cha, Jang Sihn Sohn, Un Suk Jung, Chul Jung Kim, Jin Suk Kim","doi":"10.4132/KoreanJPathol.2014.48.4.327","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.4.327","url":null,"abstract":"Dedifferentiated endometrioid adenocarcinoma (DEAC) is a recently described, rare uterine neoplasm containing both low-grade endometrioid adenocarcinoma and undifferentiated carcinoma.1 Undifferentiated carcinoma in DEAC may originate secondary to transformation or dedifferentiation of low-grade endometrioid adenocarcinoma and appears to be more aggressive than endometrial endometrioid adenocarcinoma.2 The undifferentiated component in DEAC can be misdiagnosed as the solid component of grade 3 endometrioid adenocarcinoma.3 Therefore, accurate diagnosis of this neoplasm is important in treatment and prognosis. Here we report a case of DEAC of the uterus.","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 4","pages":"327-30"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.4.327","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32662802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Korean Journal of PathologyPub Date : 2014-08-01Epub Date: 2014-08-26DOI: 10.4132/KoreanJPathol.2014.48.4.302
Jiwon Lee, Hee Joon Yu, Jeehun Lee, Ji Hye Kim, Hyung Jin Shin, Yeon-Lim Suh, Munhyang Lee
{"title":"Chordoid meningioma in a pediatric patient with tuberous sclerosis complex.","authors":"Jiwon Lee, Hee Joon Yu, Jeehun Lee, Ji Hye Kim, Hyung Jin Shin, Yeon-Lim Suh, Munhyang Lee","doi":"10.4132/KoreanJPathol.2014.48.4.302","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.4.302","url":null,"abstract":"Meningeal tumors are rare in childhood, comprising less than 4.2% of all pediatric primary intracranial tumors.1 Fourteen histological subtypes of meningiomas exist in the World Health Organization (WHO) classification system.2 Chordoid meningioma (CM) is a rare meningiomal variant characterized histologically by features that mimic chordoma and other chordoid neoplasms.2 Chordoid meningiomal tumors tend to exhibit local recurrence and aggressive behavior, although they typically show morphologically benign features. \u0000 \u0000In a tuberous sclerosis complex (TSC) patient, hamartomas can occur in multiple organs and cause diverse clinical symptoms. Cortical tubers, subependymal nodules (SENs) and subependymal giant cell astrocytomas (SEGAs) are representative lesions of TSC and can be detected by magnetic resonance imaging (MRI) of the brain.3 SEGA lesions have been found to occur in approximately 6.1% to 18.5% of TSC patients, and account for 90% of all intracranial tumors associated with TSC.4 SEGA lesions are commonly located in the foramen of Monro or the periventricular region,5 and can cause loss of vision, papillary edemas, intracranial calcification, and hydrocephalus.6 The primary method for treating SEGA lesions consists of surgical resection of the tumors; complete and early surgical removal of tumors has been shown to be the most important prognostic factor.6 \u0000 \u0000Childhood CM has been shown to account for only ~0.5-1% of all meningiomas, with intraventricular occurrence of CM reported in only 27 children to date.2,7 Also, CM has not been reported in any TSC patients to date. Here we report a case of intraventricular CM, which appeared highly similar to SEGA in brain MRI scans, in a child with TSC.","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 4","pages":"302-6"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.4.302","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32662796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Korean Journal of PathologyPub Date : 2014-08-01Epub Date: 2014-08-26DOI: 10.4132/KoreanJPathol.2014.48.4.331
Yoon Sung Bae, Se Hoon Kim
{"title":"Perivascular epithelioid cell tumor arising in the sacrum: a case report.","authors":"Yoon Sung Bae, Se Hoon Kim","doi":"10.4132/KoreanJPathol.2014.48.4.331","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.4.331","url":null,"abstract":"Perivascular epithelioid cell tumor (PEComa) is a rare and recently described neoplasm composed mainly of epithelioid cells with a characteristic perivascular pattern of arrangement.1 The diagnosis can be confirmed by immunohistochemical (IHC) staining as tumor cells express melanocytic and myogenic markers.2 These tumors can occur in a wide variety of organs including the kidney, liver, lung, uterus, and pancreas.3 We report the case of a PEComa arising from the sacral bone, which is an exceedingly rare site for a PEComa. Although there have been several reports of PEComas originating from bone, to our knowledge this is the first case report of a PEComa arising from the sacral bone.4","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 4","pages":"331-4"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.4.331","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32662803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Korean Journal of PathologyPub Date : 2014-08-01Epub Date: 2014-08-26DOI: 10.4132/KoreanJPathol.2014.48.4.292
Aleem Ladak, Maria Bramley, Sami Titi
{"title":"Unilateral Pigmented Extramammary Paget's Disease of the Axilla Associated with a Benign Mole: A Case Study and a Review of Literature.","authors":"Aleem Ladak, Maria Bramley, Sami Titi","doi":"10.4132/KoreanJPathol.2014.48.4.292","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.4.292","url":null,"abstract":"<p><p>Pigmented extramammary Paget's disease (PEMPD) is an uncommon intraepithelial adenocarcinoma and a rare variant of Paget's disease affecting skin that is rich in apocrine sweat glands such as the axilla, perianal region and vulva. It most commonly occurs in postmenopausal women and presents as a superficial pigmented scaly macule, mimicking a melanocytic lesion. The histological presentation is adenocarcinoma in situ with an increased number of melanocytes scattered between the Paget's cells. Therefore, PEMPD may be misdiagnosed as a melanocytic tumour both clinically and histologically. The tumour cells are usually positive for cytokeratin 7, epithelial membrane antigen, Cam 5.2, HER2, and mucicarmine stain while S100 and human melanoma black-45 highlight the processes of reactive dendritic cells. The association between Paget's cells and intratumoural reactive melanocytes is still unclear. We report our first case of PEMPD associated with an intradermal naevus involving the axilla in a 63-year-old woman. </p>","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 4","pages":"292-6"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.4.292","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32662794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Korean Journal of PathologyPub Date : 2014-06-01Epub Date: 2014-06-26DOI: 10.4132/KoreanJPathol.2014.48.3.234
Ji Hye Park, Hyeong Ju Kwon, Cheong Soo Park, SoonWon Hong
{"title":"Anaplastic Transformation of Papillary Thyroid Carcinoma in a Young Man: A Case Study with Immunohistochemical and BRAF Analysis.","authors":"Ji Hye Park, Hyeong Ju Kwon, Cheong Soo Park, SoonWon Hong","doi":"10.4132/KoreanJPathol.2014.48.3.234","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.3.234","url":null,"abstract":"<p><p>This study reports a case of anaplastic transformation from a well-differentiated thyroid carcinoma in a young patient. The first recurrent tissue contained poorly differentiated foci that revealed lower thyroglobulin, thyroid transcription factor 1 (TTF-1), and galectin-3 expression than the well-differentiated area. However there was no increased p53 or Ki-67 expression in the poorly differentiated foci, nor in the well-differentiated area. The tissue subsequently relapsed and revealed only anaplastic features, complete loss of thyroglobulin, TTF-1, and galectin-3 expression and revealed an increase in p53 and Ki-67 expression. The BRAF V600E and BRAF V600V mutation were found in the initially diagnosed papillary thyroid carcinoma and the poorly differentiated foci of the recurring papillary thyroid carcinoma; however, only the BRAF V600V mutation was found in the anaplastic carcinoma. These results suggest that overexpression of p53 and Ki-67 contributed to the anaplastic transformation. We also found that the BRAF type changed during the tumor relapse. </p>","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 3","pages":"234-40"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.3.234","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32494206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Korean Journal of PathologyPub Date : 2014-06-01Epub Date: 2014-06-26DOI: 10.4132/KoreanJPathol.2014.48.3.248
Hyunchul Kim, Jae Yeon Seok, Sangho Lee, Jungsuk An, Na Rae Kim, Dong Hae Chung, Hyun Yee Cho, Seung Yeon Ha
{"title":"Bilateral stafne bone cavity in the anterior mandible with heterotopic salivary gland tissue: a case report.","authors":"Hyunchul Kim, Jae Yeon Seok, Sangho Lee, Jungsuk An, Na Rae Kim, Dong Hae Chung, Hyun Yee Cho, Seung Yeon Ha","doi":"10.4132/KoreanJPathol.2014.48.3.248","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.3.248","url":null,"abstract":"Stafne bone cavity is a well demarcated defect of the mandible, usually asymptomatic and located in the posterior portion of the bone.1 Most cases have been reported in male patients between the age of 50 and 70 years.2 This lesion has been labeled with various terms, including ectopic salivary gland, idiopathic defect, mandibular salivary gland inclusion, Stafne bone cavity and cyst.2 The cavities are often filled with normal salivary gland tissue, but occasional cases showed cavity contents that included skeletal muscle, fibrous connective tissue and adipose tissue.1,2 Bilateral Stafne bone cavity of the anterior mandible is extremely rare and only seven such cases have been reported previously.2 Herein, we report a case of bilateral Stafne bone cavity of the anterior mandible.","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 3","pages":"248-9"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.3.248","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32494208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Well-differentiated papillary mesothelioma of the tunica vaginalis: a case study and review of the literature.","authors":"Seyda Erdogan, Arbil Acikalin, Handan Zeren, Gulfılız Gonlusen, Suzan Zorludemir, Volkan Izol","doi":"10.4132/KoreanJPathol.2014.48.3.225","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.3.225","url":null,"abstract":"<p><p>Well-differentiated papillary mesothelioma is an uncommon tumor of the testes that usually presents as a hydrocele. Here, we present the case of one patient who did not have a history of asbestos exposure. The tumor was localized in the tunica vaginalis and was composed of three pedunculated masses macroscopically. Microscopically, branching papillary structures with focal coagulative necrosis were present. In addition to immunohistochemistry, simian virus 40 DNA was also tested by polymerase chain reaction. This report presents one case of this rare entity, its clinical and macroscopic features, and follow-up results. </p>","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 3","pages":"225-8"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.3.225","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32494204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Korean Journal of PathologyPub Date : 2014-06-01Epub Date: 2014-06-26DOI: 10.4132/KoreanJPathol.2014.48.3.229
Yoon Jin Cha, Gi Jeong Kim, Byeong-Woo Park, Ja Seung Koo
{"title":"Low-grade adenosquamous carcinoma of the breast with diverse expression patterns of myoepithelial cell markers on immunohistochemistry: a case study.","authors":"Yoon Jin Cha, Gi Jeong Kim, Byeong-Woo Park, Ja Seung Koo","doi":"10.4132/KoreanJPathol.2014.48.3.229","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.3.229","url":null,"abstract":"<p><p>This paper reports a case of low-grade adenosquamous carcinoma (LGASC) arising in a 69-year-old woman, who presented with a 1-cm palpable mass on her right breast. Core needle biopsy diagnosed the mass as a fibroadenoma. After six months, the mass increased in size, and the patient received subsequent mammotome excision. On microscopic examination, bland-looking small glands were infiltrating into the fibrotic stroma with lymphocytic infiltrates at the periphery. Hematoxylin and eosin staining revealed relatively easily detectable myoepithelial cells along the outside in each of the glandular structures with variable degrees of squamous metaplasia. Based on histologic features, the patient was diagnosed with LGASC. LGASC is a rare variant of metaplastic carcinoma, which is characterized by a favorable prognosis. Due to the bland cytology and presence of myoepithelial cells, LGASC can be misdiagnosed as benign lesion. Additionally, inconsistent expression of myoepithelial markers could aid the diagnosis of LGASC. </p>","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 3","pages":"229-33"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.3.229","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32494205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Korean Journal of PathologyPub Date : 2014-06-01Epub Date: 2014-06-26DOI: 10.4132/KoreanJPathol.2014.48.3.258
Dakeun Lee, Young-Bae Kim, Sook Hee Chung, Sang-Ryung Lee, Cheul Su Byun, Sang-Uk Han, Jae Ho Han
{"title":"Primary gastric histiocytic sarcoma reminiscent of inflammatory pseudotumor: a case report with review of the literature.","authors":"Dakeun Lee, Young-Bae Kim, Sook Hee Chung, Sang-Ryung Lee, Cheul Su Byun, Sang-Uk Han, Jae Ho Han","doi":"10.4132/KoreanJPathol.2014.48.3.258","DOIUrl":"https://doi.org/10.4132/KoreanJPathol.2014.48.3.258","url":null,"abstract":"Histiocytic sarcoma is a malignant proliferation of cells showing similar morphologic and immunophenotypic features to mature tissue histiocytes. 1 It is a very rare neoplasm, and only a limited number of cases have been reported. Although it occurs in lymph nodes, the majority of cases present in extranodal sites, most commonly the intestinal tract, skin, and soft tissues. 2 In the intestinal tract, primary gastric involvement is exceptional; only a handful of cases have been reported in the English literature. 2-6 In all of these cases, the neoplastic cells were highly atypical, and malignancy was easily suggested based on the morphology. In the case presented here, diagnosis was a challenge due to the lack of a high degree of atypia or pleomorphism of the tumor cells. Herein, we report a case of primary gastric histiocytic sarcoma masquerading as an inflam matory pseudotumor. We also present the clinical characteristics of previously reported gastric histiocytic sarcomas by literature review.","PeriodicalId":49936,"journal":{"name":"Korean Journal of Pathology","volume":"48 3","pages":"258-62"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4132/KoreanJPathol.2014.48.3.258","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32495697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}