Correction to: Assessment of individual tumor buds using keratin immunohistochemistry: moderate interobserver agreement suggests a role for machine learning (Modern Pathology, (2020), 33, 5, (825-833), 10.1038/s41379-019-0434-2) (2020) Bokhorst JM, Blank A, Lugli A, Zlobec I, Dawson H, Vieth M, Rijstenberg LL, et al. Journal article, Erratum Polypoid Undifferentiated Rhabdoid Carcinoma in the Intestine: A Distinctive Presentation of Metastatic -Mostly Occult -Undifferentiated Non-small Cell Lung Carcinoma Illustrated in a Series of 12 Cases (2020) Agaimy A, Daum O, Michal M, Hartmann A, Lauwers G Conference contribution HMGA1/HMGA2 Gene Rearrangements and HMGA1/HMGA2 Protein Overexpression in Spindle Cell/Pleomorphic Lipomas (SPL) (2020) Michalova K, Steiner P, Grossmann P, Suster S, Agaimy A, Kazakov D, Michal M, Michal M Conference contribution Variant morphology and random chromosomal integration of BK polyomavirus in posttransplant urothelial carcinomas (2020) Bertz S, Enßer A, Stöhr R, Eckstein M, Apel H, Mayr D, Büttner-Herold M, et al. Journal article EWSR1-PATZ1-rearranged sarcoma: a report of nine cases of spindle and round cell neoplasms with predilection for thoracoabdominal soft tissues and frequent expression of neural and skeletal muscle markers (2020) Michal M, Rubin BP, Agaimy A, Kosemehmetoglu K, Rudzinski ER, Linos K, John I, et al. Journal article Targeted sequencing of FH-deficient uterine leiomyomas reveals biallelic inactivating somatic fumarase variants and allows characterization of missense variants (2020) Popp B, Erber R, Kraus C, Vasileiou G, Hoyer J, Burghaus S, Hartmann A, et al. Journal article ALK rearranged renal cell carcinoma (ALK-RCC): a multi-institutional study of twelve cases with identification of novel partner genes CLIP1, KIF5B and KIAA1217 (2020) Kuroda N, Trpkov K, Gao Y, Tretiakova M, Liu YJ, Ulamec M, Takeuchi K, et al. Journal article MAGE-A expression in oral and laryngeal leukoplakia predicts malignant transformation (2019) Baran C, Agaimy A, Wehrhan F, Weber M, Hille V, Brunner K, Wickenhauser C, et al. Journal article Ameloblastic Fibrosarcoma: Clinicopathological and Molecular Analysis of 7 Cases Highlighting Frequent BRAF and Rare NRAS Mutations (2019) Agaimy A, Skalova A, Franchi A, Alshagroud R, Stoehr R, Baumhoer D, Bauer S Conference contribution PBRM1 but not BAP1 deficiency is a frequent feature of multifocal non-cystic low-grade clear cell renal cell carcinoma (2019) Agaimy A, Trpkov K, Gao Y, Hartmann A, Hes O Conference contribution