Virchows Archiv

In this issue

Development of head and neck pathology in Europe

Henrik Hellquist, Abbas Agaimy, Göran Stenman, Alessandro Franchi, Alfons Nadal, Alena Skalova, Ilmo Leivo, Nina Zidar, Roderick H. W. Simpson, Pieter J. Slootweg, Juan C. Hernandez-Prera, Alfio Ferlito

Ultrastructural examination of lung “cryobiopsies” from a series of fatal COVID-19 cases hardly revealed infected cells

Katia Cortese, Gudrun Holland, Lars Möller, Maria Cristina Gagliani, Emanuela Barisione, Lorenzo Ball, Paolo Pelosi, Federica Grillo, Luca Mastracci, Roberto Fiocca, Michael Laue

Diagnostic significance of reassessment of prostate biopsy specimens by experienced urological pathologists at a high-volume institution

Yoichiro Okubo, Yayoi Yamamoto, Shinya Sato, Emi Yoshioka, Masaki Suzuki, Kota Washimi, Kimito Osaka, Takahisa Suzuki, Tomoyuki Yokose, Takeshi Kishida, Yohei Miyagi

T1 bladder carcinoma with variant histology: pathological features and clinical significance

Antonio Lopez-Beltran, Ana Blanca, Alessia Cimadamore, Rodolfo Montironi, Rafael J. Luque, Metka Volavšek, Liang Cheng

Low-grade oncocytic tumor of kidney harboring TSC/MTOR mutation: clinicopathologic, immunohistochemical and molecular characteristics support a distinct entity

Hui-Zhi Zhang, Qiu-Yuan Xia, Shu-Yan Wang, Meng-Jie Shi, Su-Ying Wang

A deep learning model for breast ductal carcinoma in situ classification in whole slide images

Fahdi Kanavati, Shin Ichihara, Masayuki Tsuneki

Comparing the 2017 ASCO/CAP guideline for gastroesophageal adenocarcinoma surgical specimen to the 2018 ASCO/CAP guideline for breast cancer in assessing the HER2 status in primary mucinous ovarian carcinoma

Wan-Ru Chao, Ming-Yung Lee, Yi-Ju Lee, Gwo-Tarng Sheu, Chih-Ping Han

Comparison of the Idylla™ MSI assay with the Promega™ MSI Analysis System and immunohistochemistry on formalin-fixed paraffin-embedded tissue of endometrial carcinoma: results from an international, multicenter study

Sonia Gatius, Ana Velasco, Mar Varela, Miriam Cuatrecasas, Pedro Jares, Lisa Setaffy, Benjamin Bonhomme, Almudena Santon, Kristina Lindemann, Sabrina Croce, Ben Davidson, Sigurd Lax, Jose Palacios, Xavier Matias-Guiu

Deeper sections reveal residual tumor cells in rectal cancer specimens diagnosed with pathological complete response following neoadjuvant treatment

Lasse Slumstrup, Susanne Eiholm, Astrid Louise Bjørn Bennedsen, Dea Natalie Munch Jepsen, Ismail Gögenur, Anne-Marie Kanstrup Fiehn

Carcinosarcoma of the stomach: four cases that expand the morphologic spectrum of gastric cancer with a primitive phenotype

Sho Yamazawa, Tetsuo Ushiku

Tumor progression by epithelial-mesenchymal transition in ARID1A- and SMARCA4-aberrant solid-type poorly differentiated gastric adenocarcinoma

Taisuke Sasaki, Kenichi Kohashi, Shinichiro Kawatoko, Eikichi Ihara, Eiji Oki, Masafumi Nakamura, Yoshihiro Ogawa, Yoshinao Oda

Epigenetic upregulation of TET2 is an independent poor prognostic factor for intrahepatic cholangiocarcinoma

Hironori Yamashita, Aikaterini Tourna, Masayuki Akita, Tomoo Itoh, Shilpa Chokshi, Tetsuo Ajiki, Takumi Fukumoto, Neil A. Youngson, Yoh Zen

GLI1-altered mesenchymal tumor: a clinicopathological and molecular analysis of ten additional cases of an emerging entity

Jiahan Liu, Rongjun Mao, I Weng Lao, Lin Yu, Qianming Bai, Xiaoyan Zhou, Jian Wang

Transdifferentiation of mantle cell lymphoma into sarcoma with limited neuromuscular differentiation after conventional chemotherapy

Ichiro Kawashima, Naoki Oishi, Kazunari Kasai, Tomohiro Inoue, Eriko Hosokawa, Ayato Nakadate, Minori Matsuura, Takuma Kumagai, Megumi Koshiishi, Takeo Yamamoto, Kei Nakajima, Masaru Tanaka, Tetsuo Kondo, Keita Kirito

Novel RGAG1-BCOR gene fusion revealed in a somatic soft tissue sarcoma with a long follow-up

Mauro Vasella, Ulrich Wagner, Christine Fritz, Kati Seidl, Luca Giudici, Gerhard Ulrich Exner, Holger Moch, Peter Johannes Wild, Beata Bode-Lesniewska

Rapidly fatal SMARCA4-deficient undifferentiated sarcoma originating from hybrid hemosiderotic fibrolipomatous tumor/pleomorphic hyalinizing angiectatic tumor of the foot

Abbas Agaimy, Norbert Meidenbauer, William R. Sukov, Robert Stoehr, Michael Vieth, Frank Roemer, Robert Grützmann, Andrew L. Folpe

Indolent T-lymphoblastic proliferation: a report of three cases

Zheng Yuanyuan, Xie Jianlan, Zhang Yanlin, Zhou Xiaoge