ESP, EORTC, and EURACAN Expert Opinion: practical recommendations for the pathological diagnosis and clinical management of intermediate melanocytic tumors and rare related melanoma variants Arnaud de la FouchardiereWilleke BlokxEURACAN Original Article 12 January 2021 Pages: 3 - 11
Predictive significance of HER2 intratumoral heterogeneity, determined by simultaneous gene and protein analysis, for resistance to trastuzumab-based treatments for HER2-positive breast cancer Rie HoriiHiroaki NittaFutoshi Akiyama Original Article 26 January 2021 Pages: 13 - 21
Assessment of HER2 using the 2018 ASCO/CAP guideline update for invasive breast cancer: a critical look at cases classified as HER2 2+ by immunohistochemistry Valerie J. TaylorPenny J. BarnesGillian C. Bethune Original Article 01 February 2021 Pages: 23 - 31
Morphological intratumor heterogeneity in ductal carcinoma in situ of the breast Claudia Stanciu-PopMarie-Cécile NollevauxMieke R. Van Bockstal Original Article 27 January 2021 Pages: 33 - 43
Tumor budding in upper urinary tract urothelial carcinoma: a putative prognostic factor for extraurothelial recurrence and overall survival Kazuki KawamuraKosuke MiyaiKeiichi Ito Original Article 06 January 2021 Pages: 45 - 55
Clear cell clusters in the kidney: a rare finding that should not be misdiagnosed as renal cell carcinoma José-Antonio Ortiz-ReyCarmen FachalCarolina Gómez-de María Original Article 14 January 2021 Pages: 57 - 67
Primary MiNEN of the urinary bladder: an hitherto undescribed entity composed of large cell neuroendocrine carcinoma and adenocarcinoma with a distinct clinical behavior Giacomo Maria PiniSilvia UccellaCarlo Patriarca Original Article Open access 17 January 2021 Pages: 69 - 78
Cardiac hypertrophy at autopsy Cristina BassoKatarzyna Michaudon behalf of the Association for European Cardiovascular Pathology Original Article Open access 19 March 2021 Pages: 79 - 94
Correction to: Cardiac hypertrophy at autopsy Cristina BassoKatarzyna Michaudon behalf of the Association for European Cardiovascular Pathology Publisher Correction 14 May 2021 Pages: 95 - 95
Autopsy findings after long-term treatment of COVID-19 patients with microbiological correlation Katja EvertThomas DienemannMichaela Simon Original Article Open access 20 January 2021 Pages: 97 - 108
Biopsy pattern of invasion type to determine the surgical approach in early-stage oral squamous cell carcinoma Yumei PuLiang DingQingang Hu Original Article 13 January 2021 Pages: 109 - 119
A novel evaluation method for Ki-67 immunostaining in paraffin-embedded tissues Eliane Pedra DiasNathália Silva Carlos OliveiraKarin Soares Cunha Original Article 19 January 2021 Pages: 121 - 131
Mantle cell lymphomas with concomitant MYC and CCND1 breakpoints are recurrently TdT positive and frequently show high-grade pathological and genetic features Sietse M. AukemaGiorgio A. CrociWolfram Klapper Original Article 02 February 2021 Pages: 133 - 145
Novel partners of USP6 gene in a spectrum of bone and soft tissue lesions Mélanie LegrandMarie-Lise JourdanGonzague de Pinieux Original Article 09 February 2021 Pages: 147 - 156
Undifferentiated large cell/rhabdoid carcinoma presenting in the intestines of patients with concurrent or recent non-small cell lung cancer (NSCLC): clinicopathologic and molecular analysis of 14 cases indicates an unusual pattern of dedifferentiated metastases Abbas AgaimyOndrej DaumGregory Y. Lauwers Original Article Open access 27 January 2021 Pages: 157 - 167
Pyloric, pseudopyloric, and spasmolytic polypeptide-expressing metaplasias in autoimmune gastritis: a case series of 22 Japanese patients Yasuhiro WadaShigemi NakajimaKazunari Murakami Original Article Open access 30 January 2021 Pages: 169 - 178
Simple mucinous cyst: another potential cancer precursor in the pancreas? Case report with molecular characterization and systematic review of the literature Anna Caterina MilanettoAlice Sabrina TonelloClaudio Pasquali Original Article Open access 28 January 2021 Pages: 179 - 189
Insulinoma-associated protein 1 (INSM1) expression in breast carcinomas with neuroendocrine morphologies: application and future prospective Tomonori KawasakiKyoichi Kaira Brief Report 06 October 2020 Pages: 191 - 194
Expanding spectrum of “spitzoid” lesions: a small series of 4 cases with MAP2K1 mutations K. G. P. KerckhoffsT. AallaliW. A. M. Blokx Brief Report Open access 11 October 2020 Pages: 195 - 202
Co-existence of lung carcinoma metastasis and enchondroma in the femur of a patient with Ollier disease Xudong WangXiaohui ZhangHong Cheng Brief Report Open access 13 October 2020 Pages: 203 - 207
CD73 expression in normal, hyperplastic, and neoplastic thyroid: a systematic evaluation revealing CD73 overexpression as a feature of papillary carcinomas Inês MonteiroEdoardo MissiagliaLaurence de Leval Brief Report Open access 21 May 2021 Pages: 209 - 214
A multilocular thymic cyst associated with mediastinal seminoma: evidence for its medullary epithelial origin highlighted by POU2F3-positive thymic tuft cells and concomitant myoid cell proliferation Akihiko SugimotoYosuke YamadaHironori Haga Brief Report 24 May 2021 Pages: 215 - 220
Malignant salivary gland tumours in families with breast cancer susceptibility Carla B. RipamontiPaolo BossiPaolo Radice Brief Report 08 June 2021 Pages: 221 - 226
Lesson from the COVID-19 pandemic: pathologists need to build their confidence on working in a digital microscopy environment Rodolfo MontironiAlessia CimadamoreMarina Scarpelli Commentary 25 May 2021 Pages: 227 - 229