Articles

Endobronchial sialolipoma. Case report

A 52-year-old woman presented with shortness of breath and cough. An endobronchial sialolipoma was found at the left entrance of the main bronchus. Sialolipoma is an exceedingly rare type of lipoma reported of...

Authors: Severino Rey Nodar, Verónica García Yllán, Nohelia Rojas Ferrer, Onay Solis and Hugo D. Boccara

Succinate dehydrogenase deficient gastrointestinal stromal tumor in a three month old boy with a fatal clinical course: a case report and review of literature

Succinate dehydrogenase deficient gastrointestinal stromal tumors (SDH-deficient GISTs), which lack KIT or PDGFRA mutations demonstrate unique clinical and pathological features, and they respond poorly to sta...

Authors: Bei-Bei Lv, Jia-Mei Li, Zhi-Gang Yao, Xian-Kui Cheng, Fu-Xin Ren, Wen-Jing Su, Ye-Jun Qin, Zhou Wang and Zhi-xin Cao

Accuracy of HPV E6/E7 mRNA examination using in situ hybridization in diagnosing cervical intraepithelial lesions

The consistency of pathologists in the diagnosis of cervical intraepithelial neoplasia (CINs) is not ideal, especially between low- and high-grade squamous intraepithelial lesions (LSIL and HSIL). This study w...

Authors: Chang Hui, Huimin Bai, Jun Liu, Xuerong Lu, Shuzhen Wang, Zhenyu Zhang, Mulan Jin, Yue Wang and Yuzhen Liu

Mismatch repair deficiency is associated with specific morphologic features and frequent loss of ARID1A expression in ovarian clear cell carcinoma

Ovarian clear cell carcinoma (OCCC) is the second subtype of ovarian epithelial carcinoma reported to be closely related to Lynch syndrome (LS). ARID1A mutation is an important pathogenetic mechanism in OCCC t...

Authors: Huijuan Ge, Yaoxin Xiao, Guangqi Qin, Yanzi Gu, Xu Cai, Wenhua Jiang, Xiaoyu Tu, Wentao Yang and Rui Bi

Title: pancreatic‐type mixed acinar neuroendocrine carcinoma of the stomach: a case report and review of the literature

The majority of gastrointestinal tumors are adenocarcinomas. Rarely, there are other types of tumors, such as acinar cell carcinoma, and these are often called pancreatic-type acinar cell carcinomas. Among the...

Authors: Yuka Ooe, Kishichiro Watanabe, Isaya Hashimoto, Satoshi Takenaka, Toshihiko Ojima, Seiichi Yamamoto and Hisatake Fujii

Low GSTM3 expression is associated with poor disease‐free survival in resected esophageal squamous cell carcinoma

Glutathione S-transferase mu 3 (GSTM3) plays a crucial role in tumor progression in various cancers. However, the relationship between GSTM3 expression and the clinical prognosis of esophageal squamous cell ca...

Authors: Fu Yang, Jing Wen, Kongjia Luo and Jianhua Fu

Atypical cells parameter in Sysmex UN automated urine analyzer: feedback from the field

“Atypical cells” parameter in automated urinalysis has recently been introduced. An instrument capable of measuring quantitative and qualitative features of nuclear and cytoplasmic properties of a cell has the...

Authors: Ozgur Aydin

Placental pathology of the third trimester pregnant women from COVID-19

To explore the clinical characteristics and placental pathological changes of pregnant women with 2019 novel coronavirus (CoV) disease (COVID-19) in the third trimester, and to assess the possibility of vertic...

Authors: Likun Gao, Jiacai Ren, Li Xu, Xiaokang Ke, Lin Xiong, Xiaoli Tian, Cuifang Fan, Honglin Yan and Jingping Yuan

Aspiration biopsy versus dilatation and curettage for endometrial hyperplasia prior to hysterectomy

To compare the diagnostic accuracy of aspiration biopsy and dilatation and curettage (D&C) in patients diagnosed with endometrial hyperplasia prior to hysterectomy.

Authors: Woo Yeon Hwang, Dong Hoon Suh, Kidong Kim, Jae Hong No and Yong Beom Kim

Nodal histiocytic sarcoma with prominent eosinophilic infiltration: expression of eotaxin-2 on tumor cells

Histiocytic sarcoma (HS) is a rare neoplasm showing morphological and immunophenotypic features of mature tissue histiocytes. We report a patient with nodal HS exhibiting prominent reactive eosinophilic infilt...

Authors: Rintaro Ohe, Takanobu Kabasawa, Aya Utsunomiya, Yuka Urano, Takumi Kitaoka, Kazushi Suzuki, Naing Ye Aung, Ichiro Kawamura, Katsushi Tajima, Tomoharu Ishiyama and Mitsunori Yamakawa

High miR-324-5p expression predicts unfavorable prognosis of gastric cancer and facilitates tumor progression in tumor cells

Gastric cancer (GCa) is one of the six major malignancies in the world with low survival rate. Although there are advances in therapeutic approaches, the prognosis of patients with GCa remains not optimistic. ...

Authors: Zhong Zheng, Jun Li, Junyan An, Yikuan Feng and Lirong Wang

An “expressionistic” look at serrated precancerous colorectal lesions

Approximately 60% of colorectal cancer (CRC) precursor lesions are the genuinely-dysplastic conventional adenomas (cADNs). The others include hyperplastic polyps (HPs), sessile serrated lesions (SSL), and trad...

Authors: Giancarlo Marra

Primary dedifferentiated Liposarcoma of vagina: a first case report

Dedifferentiated liposarcoma, one of the most deadly types of soft tissue sarcoma, is an aggressive and high-grade form of liposarcoma. Liposarcoma occurs most commonly in the retroperitoneum, extremities and ...

Authors: Chuan Xie and Yangmei Shen

Expression of IL4Rα and IL13Rα1 are associated with poor prognosis of soft-tissue sarcoma of the extremities, superficial trunk, and retroperitoneum

IL4Rα and IL13Rα1 are constituents of the type II IL4 receptor. Recently, IL4Rα and IL13Rα1 were reported to have roles in cancer progression and suggested as potential prognostic markers. However, studies on ...

Authors: Kyoung Min Kim, Usama Khamis Hussein, See-Hyoung Park, Young Jae Moon, Zhongkai Zhang, Asmaa Gamal Ahmed, Ae-Ri Ahn, Ho Sung Park, Jung Ryul Kim and Kyu Yun Jang

The clinicopathological relevance of uniform CD56 expression in anaplastic large cell lymphoma: a retrospective analysis of 18 cases

Anaplastic large cell lymphoma (ALCL) with uniform CD56 expression is a rare condition, that has been described in limited literature, and its clinicopathological features have not yet been well illustrated. T...

Authors: Bao-Hua Yu, Yan Zhang, Tian Xue, Ruo-Hong Shui, Hong-Fen Lu, Xiao-Yan Zhou, Xiong-Zeng Zhu and Xiao-Qiu Li

Quality assessment of a clinical next-generation sequencing melanoma panel within the Italian Melanoma Intergroup (IMI)

Identification of somatic mutations in key oncogenes in melanoma is important to lead the effective and efficient use of personalized anticancer treatment. Conventional methods focus on few genes per run and, ...

Authors: Irene Vanni, Milena Casula, Lorenza Pastorino, Antonella Manca, Bruna Dalmasso, Virginia Andreotti, Marina Pisano, Maria Colombino, Ulrich Pfeffer, Enrica Teresa Tanda, Carla Rozzo, Panagiotis Paliogiannis, Antonio Cossu, Paola Ghiorzo and Giuseppe Palmieri

Parathyroid carcinoma with sarcomatoid differentiation: a case report and literature review

Parathyroid carcinoma (PC) is a rare thyroid tumor. PC with sarcomatoid differentiation(PCSD) is even rarer and its exact etiology remains unclear. We here report a case of PCSD, and present the clinicopatholo...

Authors: Liang Hu and Xiaojun Xie

Circ_0003998 enhances doxorubicin resistance in hepatocellular carcinoma by regulating miR-218-5p/EIF5A2 pathway

The involvement of circular RNAs (circRNAs) in chemoresistance of tumors has been identified. Herein, this study aims to investigate the role and the underlying mechanism of circ_0003998 in doxorubicin (DOX) r...

Authors: Xiaomin Li, Jiefeng He, Xiaojing Ren, Haichao Zhao and Haoliang Zhao

Hyperplastic polyp or sessile serrated lesion? The contribution of serial sections to reclassification

The histological discrimination of hyperplastic polyps from sessile serrated lesions can be difficult. Sessile serrated lesions and hyperplastic polyps are types of serrated polyps which confer different malig...

Authors: Diana R. Jaravaza and Jonathan M. Rigby

Clinicopathological and immunohistochemical study of 29 cases of solid-pseudopapillary neoplasms of the pancreas in patients under 20 years of age along with detailed review of literature

Pancreatic Solid Pseudopapillary Neoplasms (SPNs) are rare low-grade malignant tumors with a marked preponderance for young females. Objective was to describe the morphology, differential diagnosis, and progno...

Authors: Nasir Ud Din, Shabina Rahim, Jamshid Abdul-Ghafar, Arsalan Ahmed and Zubair Ahmad

Comment on: Diagnostic value of miR-186-5p for carotid artery stenosis and its predictive significance for future cerebral ischemic event

Authors: Siamak Sabour

Sinonasal analogue HPV related breast multiphenotypic carcinoma, a report of a case with the first description in the breast

High grade basal-like breast carcinomas are triple negative, express basal cytokeratins, and are known for the overall poor prognosis and aggressive behavior. HPV related multiphenotypic sino-nasal carcinoma h...

Authors: Diana M. Oramas, Diana Bell and Lavinia P. Middleton

Non coding RNAs as the critical factors in chemo resistance of bladder tumor cells

Bladder cancer (BCa) is the ninth frequent and 13th leading cause of cancer related deaths in the world which is mainly observed among men. There is a declining mortality rates in developed countries. Although...

Authors: Amir Sadra Zangouei, Hamid Reza Rahimi, Majid Mojarrad and Meysam Moghbeli

KPNA2 expression is a potential marker for differential diagnosis between osteosarcomas and other malignant bone tumor mimics

Karyopherin α2 (KPNA2), a member of the karyopherin α family, has been studied in several cancers but has not yet been substantially investigated in malignant bone tumors. The purpose of the current study was ...

Authors: Lucen Jiang, Jianghuan Liu, Qingzhu Wei and Yiyang Wang

P63-negative pulmonary NUT carcinoma arising in the elderly: a case report

Pulmonary NUT carcinoma is rare, but lethal, thus, must not be overlooked. The definitive diagnosis is made by a NUT monoclonal antibody or gene analysis, but these are not always routinely available. Therefor...

Authors: Satoe Numakura, Koji Saito, Noriko Motoi, Taisuke Mori, Yuichi Saito, Fumi Yokote, Yasuyuki Kanamoto, Momoko Asami, Takashi Sakai, Yoshikane Yamauchi, Yukinori Sakao, Hiroshi Uozaki and Masafumi Kawamura

Circ_0001421 facilitates glycolysis and lung cancer development by regulating miR-4677-3p/CDCA3

Lung cancer (LC) is a malignant tumor originating in the bronchial mucosa or gland of the lung. Circular RNAs (circRNAs) are proved to be key regulators of tumor progression. However, the regulatory effect of ...

Authors: Koudong Zhang, Hang Hu, Juan Xu, Limin Qiu, Haitao Chen, Xingzhi Jiang and Yongqian Jiang

Giant lung metastasis of NRAS-mutant melanoma in a 24-year-old patient with a history of BRAF-mutant conventional melanoma harboring Spitzoid morphology: a case report

Spitzoid melanocytic lesions represent a heterogeneous group of proliferations with ambiguous and overlapping terminology. The exact distinction of a Spitz nevus from a Spitzoid melanoma can be very difficult ...

Authors: Jiri Vachtenheim Jr, Roman Kodet, Ondrej Fischer, Vitezslav Kolek, Zuzana Strizova, Andrej Ozaniak, Jan Simonek, Alan Stolz, Jiri Pozniak, Jan Kolarik, Monika Svorcova, Jiri Vachtenheim and Robert Lischke

Gastric adenocarcinoma of the fundic gland type: clinicopathological features of eight patients treated with endoscopic submucosal dissection

Gastric adenocarcinoma of the fundic gland type (GA-FG) has been added to the 2019 edition of the World Health Organization’s list of digestive system-associated cancers. This lesion differentiates toward the ...

Authors: Chengfang Li, Xinglong Wu, Shuang Yang, Xiaorong Yang, Jin Yao and Hong Zheng

Detection and stage classification of Plasmodium falciparum from images of Giemsa stained thin blood films using random forest classifiers

The conventional method for the diagnosis of malaria parasites is the microscopic examination of stained blood films, which is time consuming and requires expertise. We introduce computer-based image segmentat...

Authors: Syed Saiden Abbas and Tjeerd M. H. Dijkstra

Interobserver study on histologic features of idiopathic non-cirrhotic portal hypertension

Histologic features of idiopathic non-cirrhotic portal hypertension (INCPH) may overlap with those without INCPH. Recently, these features have been recognized as part of the larger spectrum of porto-sinusoida...

Authors: Michel Kmeid, Chunlai Zuo, Stephen M. Lagana, Won-Tak Choi, Jingmei Lin, Zhaohai Yang, Xiuli Liu, Maria Westerhoff, M. Isabel Fiel, Kajsa Affolter, Eun-Young K. Choi and Hwajeong Lee

Endoscopic and clinicopathological characteristics of colorectal T/NK cell lymphoma

Colorectal T/natural killer (NK)-cell lymphomas (TNKCL) are very rare. Endoscopic and clinicopathological characteristics of colorectal TNKCL have not been clearly demonstrated. In this study, we demonstrated ...

Authors: Hideki Ishibashi, Satoshi Nimura, Fumihito Hirai, Naohiko Harada, Hiromi Iwasaki, Sigeto Kawauchi, Yumi Oshiro, Atsuji Matsuyama, Shotaro Nakamura, Yasushi Takamatsu, Hirotoshi Yonemasu, Taturo Shimokama and Morishige Takeshita

Diagnostic value of clusterin immunostaining in hepatocellular carcinoma

Histologic distinction between well differentiated hepatocellular carcinoma (HCC) and benign hepatocellular mass lesions is a known challenge. Existing biomarkers are of limited diagnostic value. Our previous ...

Authors: Yuan Li, Fangfang Liu, Wendi Zhou, Sharon Zhang, Peiguo Chu, Fan Lin and Hanlin L. Wang

Significance of druggable targets (PD-L1, KRAS, BRAF, PIK3CA, MSI, and HPV) on curatively resected esophageal squamous cell carcinoma

Esophageal squamous cell carcinoma (ESCC) still remains intractable disease with few therapeutic options. Programmed death-ligand 1 (PD-L1), which is essential for immune evasion, is involved in the pathogenes...

Authors: Hong Kyu Lee, Mi Jung Kwon, Yong Joon Ra, Hee Sung Lee, Hyoung Soo Kim, Eun Sook Nam, Seong Jin Cho, Hye-Rim Park, Soo Kee Min, Jinwon Seo, Ji-Young Choe, Kyueng-Whan Min and So Young Kang

T-cell lymphoma with a granulomatous lesion of the lungs after autologous hematopoietic stem cell transplantation for Epstein–Barr virus-positive diffuse large B-cell lymphoma: a unique rare case of metachronous B-cell and T-cell lymphoma

Epstein–Barr virus (EBV) is associated with the pathogenesis of a variety of malignancies, most notably lymphomas. Especially in the background of immunodeficiency, such as primary immunodeficiency disorder (P...

Authors: Yusuke Kajimoto, Yasuhiro Terasaki, Mika Terasaki, Shinobu Kunugi, Yugo Okabe, Satoshi Wakita, Koiti Inokuchi and Akira Shimizu

Plasmacytoid urothelial carcinoma of renal pelvis with positive zinc finger E–box–binding homeobox 1: a case report

The tumor transformation mechanism of a plasmacytoid urothelial carcinoma remains unexplained. We describe the case of a plasmacytoid urothelial carcinoma of the renal pelvis in which the expression of zinc fi...

Authors: Atsuko Takada-Owada, Yumi Nozawa, Masato Onozaki, Shuhei Noda, Tsengelmaa Jamiyan, Yuumi Tokura, Yoshimasa Nakazato, Takao Kamai and Kazuyuki Ishida

Unilateral synchronous papillary renal neoplasm with reverse polarity and clear cell renal cell carcinoma: a case report with KRAS and PIK3CA mutations

The presence of histologically different neoplasms in the same organ is rare in pathologic practice. We report the first case of synchronous clear cell renal cell carcinoma (clear cell RCC) and papillary renal...

Authors: Hyun Jung Lee, Dong Hoon Shin, Joon Young Park, So Young Kim, Chung Su Hwang, Jung Hee Lee, Jee Yeon Kim, Mee Young Sol and Jong Kil Nam

Cutaneous T-cell lymphomas with pathogenic somatic mutations and absence of detectable clonal T-cell receptor gene rearrangement: two case reports

Cutaneous T-cell lymphomas (CTCL) are a heterogeneous group of extranodal non-Hodgkin lymphomas for which diagnosis can be challenging given the potential for overlap with inflammatory dermatoses. Current diag...

Authors: Rebecca Rojansky, Sebastian Fernandez-Pol, Erica Wang, Kerri E. Rieger, Roberto A. Novoa, James L. Zehnder, Christian A. Kunder, Youn H. Kim, Michael S. Khodadoust and Ryanne A. Brown

Cytokeratin-positive interstitial reticulum cell (CIRC) tumor in the lymph node: a case report of the transformation from the epithelioid cell type to the spindle cell type

Cytokeratin-positive interstitial reticulum cells (CIRCs), which are a subgroup of fibroblastic reticular cells (FRCs), are known to be present in the lymph nodes. There have been only a few cases of tumors de...

Authors: Sachiko Kaji, Nobuyuki Hiruta, Daisuke Sasai, Makoto Nagashima, Rintaro Ohe and Mitsunori Yamakawa

Hepatic epithelioid hemangioendothelioma: case series of a rare vascular tumor mimicking metastases

Hepatic epithelioid hemangioendothelioma is an extremely rare malignant vascular tumor which is often multifocal and, in many cases, discovered incidentally. Here, we describe the clinicopathological features ...

Authors: Nasir Ud Din, Shabina Rahim, Tamana Asghari, Jamshid Abdul-Ghafar and Zubair Ahmad

Immunohistochemical markers and the clinical course of adenosarcoma: a series of seven cases

Uterine adenosarcoma, a rare uterine tumor subtype, is a biphasic tumor consisting of epithelial and mesenchymal elements. To date, there is no research comparing the histopathological features and immunohisto...

Authors: Makiko Omi, Akiko Tonooka, Tomohiro Chiba, Yuji Tanaka, Atsushi Fusegi, Yoichi Aoki, Hidetaka Nomura, Hiroyuki Kanao and Yutaka Takazawa

Early-stage multi-differentiated gastric carcinosarcoma and post-resection local recurrence: a case report

Carcinosarcoma is a rare neoplasm with a poor prognosis that is most often discovered at an advanced stage; a gastric carcinosarcoma is even rarer than carcinosarcomas originating in other organs, such as the ...

Authors: Akihiro Shioya, Nozomu Kurose, Kenichi Mizutani, Motona Kumagai, Ken Kawaura, Naohiko Nakamura, Takeo Kosaka, Nozomu Motono, Hidetaka Uramoto and Sohsuke Yamada

Fibrin-associated diffuse large B-cell lymphoma with plasmacytic differentiation: case report and literature review

Primary cardiac lymphomas are extremely rare entities (< 2% of cardiac tumours) and the most frequent histologic type is diffuse large B-cell lymphoma (DLBCL). Fibrin-associated DLBCL (FA-DLBCL) is a very unus...

Authors: Esther Moreno Moreno, Ana Ferrer-Gómez, Héctor Pian Arias, Irene García García and Mónica García-Cosío

Publisher Correction to: Deep learning-based image analysis methods for brightfield-acquired multiplex immunohistochemistry images

An amendment to this paper has been published and can be accessed via the original article.

Authors: Danielle J. Fassler, Shahira Abousamra, Rajarsi Gupta, Chao Chen, Maozheng Zhao, David Paredes, Syeda Areeha Batool, Beatrice S. Knudsen, Luisa Escobar-Hoyos, Kenneth R. Shroyer, Dimitris Samaras, Tahsin Kurc and Joel Saltz

Lymphoepithelioma-like carcinoma in liver not associated with Epstein-Barr virus: a report of 3 cases and literature review

Lymphoepithelioma-like carcinoma is a rare distinctive variant of liver cancer with unique epidemiological and pathological characteristics, characterized by dense lymphocyte infiltration. It can be divided in...

Authors: Kai Zhang, Changcheng Tao, Zonggui Tao, Fan Wu, Songlin An, Jianxiong Wu and Weiqi Rong

Clinicopathological findings of pediatric NTRK fusion mesenchymal tumors

While ETV6- NTRK3 fusion is common in infantile fibrosarcoma, NTRK1/3 fusion in pediatric tumors is scarce and, consequently, not well known. Herein, we evaluated for the presence of NTRK1/3 fusion in pediatric m...

Authors: Jeongwan Kang, Jin Woo Park, Jae-Kyung Won, Jeong Mo Bae, Jaemoon Koh, Jeemin Yim, Hongseok Yun, Seung-Ki Kim, Jung Yoon Choi, Hyoung Jin Kang, Woo Sun Kim, Joo Heon Shin and Sung-Hye Park

Phaeoacremonium species detected in fine needle aspiration: a rare case report

Fine needle aspiration cytology (FNAC) with rapid on-site evaluation has a great potential for the diagnosis of fungal lesions and other opportunistic infections. Fungal infections have been in increasing tren...

Authors: Santosh Tummidi, Bitan Naik, Arundhathi Shankaralingappa, Pavithra Balakrishna, Arati Ankushrao Bhadada and Navya Kosaraju

Clinician-ordered peripheral blood smears have low reimbursement and variable clinical value: a three-institution study, with suggestions for operational efficiency

Peripheral blood smears are performed to evaluate a variety of hematologic and non-hematologic disorders. At the authors’ institutions, clinician requests for pathologist-performed blood smear reviews have inc...

Authors: Amy K. Beckman, Valerie L. Ng, David L. Jaye, Manila Gaddh, Sarah A. Williams, Sophia L. Yohe, Lin Zhang and Michael A. Linden

Analysis of clinicopathological and molecular features of crawling-type gastric adenocarcinoma

Crawling-type adenocarcinoma (CRA) is an important gastric cancer (GC) subtype that exhibits a specific histological pattern and has characteristic clinicopathological findings. Despite its characteristic hist...

Authors: Yasuko Fujita, Noriyuki Uesugi, Ryo Sugimoto, Makoto Eizuka, Yosuke Toya, Risaburo Akasaka, Takayuki Matsumoto and Tamotsu Sugai

Recurrent uterine tumors resembling ovarian sex-cord tumors with the growth regulation by estrogen in breast cancer 1-nuclear receptor coactivator 2 fusion gene: a case report and literature review

Uterine tumors resembling ovarian sex-cord tumors (UTROSCTs) are rare mesenchymal neoplasms predominantly arising in perimenopausal and postmenopausal women. UTROSCTs with growth regulation by estrogen in brea...

Authors: Bin Chang, Qianming Bai, Lin Liang, Huijuan Ge and Qianlan Yao

Spotlight on Ki67 as a prognostic marker in early breast cancer: all that glitters may not be gold

Kang and colleagues evaluated on a case series of 1848 breast cancer (BC) patients operated for a first primary ER positive HER2 negative BC if Ki67 expression is a significant prognostic factor only when PgR ...

Authors: Roberta Maltoni, Michela Palleschi, Sara Ravaioli, Maria Maddalena Tumedei, Mattia Altini and Sara Bravaccini