Sonja E. Steigen

3.5k total citations · 2 hit papers
55 papers, 2.5k citations indexed

About

Sonja E. Steigen is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Gastroenterology. According to data from OpenAlex, Sonja E. Steigen has authored 55 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Surgery, 18 papers in Pulmonary and Respiratory Medicine and 17 papers in Gastroenterology. Recurrent topics in Sonja E. Steigen's work include Gastrointestinal Tumor Research and Treatment (15 papers), Gastrointestinal disorders and treatments (11 papers) and Sarcoma Diagnosis and Treatment (9 papers). Sonja E. Steigen is often cited by papers focused on Gastrointestinal Tumor Research and Treatment (15 papers), Gastrointestinal disorders and treatments (11 papers) and Sarcoma Diagnosis and Treatment (9 papers). Sonja E. Steigen collaborates with scholars based in Norway, United States and Poland. Sonja E. Steigen's co-authors include Tor J. Eide, Elin Hadler‐Olsen, Lars Uhlin‐Hansen, Piotr Rutkowski, Heikki Joensuu, Bengt Nilsson, Massimo Federico, Lukáš Plank, Toshirou Nishida and Jón G. Jónasson and has published in prestigious journals such as Journal of Clinical Oncology, PLoS ONE and Scientific Reports.

In The Last Decade

Sonja E. Steigen

54 papers receiving 2.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Risk of recurrence of gastrointestinal stromal tumour after surgery: an analysis of pooled population-based cohorts

2011 673 citations Sonja E. Steigen, Piotr Rutkowski et al. profile →
Anal cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up☆

2021 112 citations Sonja E. Steigen et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Sonja E. Steigen Norway	25	1.4k	1.4k	1.1k	524	325	55	2.5k
Peter H. Wünsch Germany	25	998 0.7×	1.1k 0.8×	896 0.8×	506 1.0×	130 0.4×	66	2.1k
W. Ruka Poland	25	1.4k 1.0×	589 0.4×	493 0.4×	1.4k 2.8×	287 0.9×	58	2.6k
Masato Hanada Japan	15	2.4k 1.7×	2.7k 2.0×	1.6k 1.5×	514 1.0×	281 0.9×	50	4.0k
Yumi Oshiro Japan	24	875 0.6×	354 0.3×	505 0.5×	482 0.9×	108 0.3×	80	1.8k
A. Kevin Raymond United States	22	1.6k 1.1×	805 0.6×	637 0.6×	632 1.2×	48 0.1×	52	2.4k
Federica Bertolini Italy	28	946 0.7×	297 0.2×	931 0.8×	1.2k 2.2×	56 0.2×	120	2.2k
Bernadette Liegl Austria	22	944 0.7×	656 0.5×	584 0.5×	322 0.6×	38 0.1×	41	2.1k
Angela Cioffi France	22	1.5k 1.1×	418 0.3×	384 0.3×	958 1.8×	48 0.1×	55	2.2k
Inga‐Marie Schaefer United States	26	1.2k 0.9×	330 0.2×	536 0.5×	536 1.0×	58 0.2×	80	2.5k
Javier Martínez‐Trufero Spain	20	1.1k 0.8×	175 0.1×	533 0.5×	976 1.9×	72 0.2×	124	2.0k

Countries citing papers authored by Sonja E. Steigen

Since Specialization

Citations

This map shows the geographic impact of Sonja E. Steigen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Sonja E. Steigen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sonja E. Steigen more than expected).

Fields of papers citing papers by Sonja E. Steigen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sonja E. Steigen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Sonja E. Steigen. The network helps show where Sonja E. Steigen may publish in the future.

Co-authorship network of co-authors of Sonja E. Steigen

This figure shows the co-authorship network connecting the top 25 collaborators of Sonja E. Steigen. A scholar is included among the top collaborators of Sonja E. Steigen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Sonja E. Steigen. Sonja E. Steigen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Meknas, Khaled, et al.. (2025). Severe knee osteoarthritis is associated with histological and ultrastructural changes in the semitendinosus tendon. Journal of Experimental Orthopaedics. 12(4). e70565–e70565.

Dancsok, Amanda R., Dongxia Gao, Anna F. Lee, et al.. (2020). Tumor-associated macrophages and macrophage-related immune checkpoint expression in sarcomas. OncoImmunology. 9(1). 125 indexed citations

Karlsdóttir, Ása, et al.. (2020). Characteristics and prognosis of primary treatment-naïve oral cavity squamous cell carcinoma in Norway, a descriptive retrospective study. PLoS ONE. 15(1). e0227738–e0227738. 22 indexed citations

Hadler‐Olsen, Elin, et al.. (2020). A combined histo-score based on tumor differentiation and lymphocytic infiltrate is a robust prognostic marker for mobile tongue cancer. Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin. 477(6). 865–872. 6 indexed citations

Meknas, Khaled, Sonja E. Steigen, Randi Olsen, et al.. (2020). No significant histological or ultrastructural tendinosis changes in the hamstring tendon in patients with mild to moderate osteoarthritis of the knee?. Knee Surgery Sports Traumatology Arthroscopy. 29(4). 1067–1074. 2 indexed citations

Kartus, Jüri‐Toomas, et al.. (2018). More tendon degeneration in patients with shoulder osteoarthritis. Knee Surgery Sports Traumatology Arthroscopy. 27(1). 267–275. 20 indexed citations

Wirsing, Anna Maria, et al.. (2018). Presence of high-endothelial venules correlates with a favorable immune microenvironment in oral squamous cell carcinoma. Modern Pathology. 31(6). 910–922. 76 indexed citations

Wirsing, Anna Maria, Oddveig Rikardsen, Sonja E. Steigen, Lars Uhlin‐Hansen, & Elin Hadler‐Olsen. (2015). Presence of tumour high-endothelial venules is an independent positive prognostic factor and stratifies patients with advanced-stage oral squamous cell carcinoma. Tumor Biology. 37(2). 2449–2459. 21 indexed citations

Hadler‐Olsen, Elin, Nadezhda Latysheva, Emma Pirilä, et al.. (2014). Tumour Microenvironments Induce Expression of Urokinase Plasminogen Activator Receptor (uPAR) and Concomitant Activation of Gelatinolytic Enzymes. PLoS ONE. 9(8). e105929–e105929. 9 indexed citations

10.

Edris, Badreddin, Íñigo Espinosa, Thomas Mühlenberg, et al.. (2012). ROR2 is a novel prognostic biomarker and a potential therapeutic target in leiomyosarcoma and gastrointestinal stromal tumour. The Journal of Pathology. 227(2). 223–233. 66 indexed citations

11.

Hadler‐Olsen, Elin, Oddveig Rikardsen, Sonja E. Steigen, et al.. (2011). S100A4 Expression in Xenograft Tumors of Human Carcinoma Cell Lines Is Induced by the Tumor Microenvironment. American Journal Of Pathology. 178(5). 2389–2396. 6 indexed citations

12.

Meknas, Khaled, Oddmund Johansen, Sonja E. Steigen, et al.. (2011). Could tendinosis be involved in osteoarthritis?. Scandinavian Journal of Medicine and Science in Sports. 22(5). 627–634. 27 indexed citations

13.

Hadler‐Olsen, Elin, Oddveig Rikardsen, Sonja E. Steigen, et al.. (2010). Stromal impact on tumor growth and lymphangiogenesis in human carcinoma xenografts. Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin. 457(6). 677–692. 12 indexed citations

14.

Florholmen, J., Sonja E. Steigen, Sveinung Wergeland Sørbye, et al.. (2010). A rapid chemokine response of macrophage inflammatory protein (MIP)-1α, MIP-1β and the regulated on activation, normal T expressed and secreted chemokine is associated with a sustained virological response in the treatment of chronic hepatitis C. Clinical Microbiology and Infection. 17(2). 204–209. 15 indexed citations

15.

Steigen, Sonja E., David F. Schaeffer, Robert B. West, & Torsten O. Nielsen. (2009). Expression of insulin-like growth factor 2 in mesenchymal neoplasms. Modern Pathology. 22(7). 914–921. 69 indexed citations

16.

Steigen, Sonja E. & Tor J. Eide. (2009). Gastrointestinal stromal tumors (GISTs): a review. Apmis. 117(2). 73–86. 69 indexed citations

17.

Yuan, Aping, Sonja E. Steigen, Rasmus Goll, et al.. (2008). Dendritic cell infiltration pattern along the colorectal adenoma‐carcinoma sequence. Apmis. 116(6). 445–456. 43 indexed citations

18.

Lasota, Jerzy, Bartosz Wasąg, Agnieszka Woźniak, et al.. (2007). Presence of homozygous KIT exon 11 mutations is strongly associated with malignant clinical behavior in gastrointestinal stromal tumors. Laboratory Investigation. 87(10). 1029–1041. 70 indexed citations

19.

Steigen, Sonja E., Bodil Bjerkehagen, Hans Kristian Haugland, et al.. (2007). Diagnostic and prognostic markers for gastrointestinal stromal tumors in Norway. Modern Pathology. 21(1). 46–53. 44 indexed citations

20.

Cui, Guanglin, Rasmus Goll, Trine Olsen, et al.. (2006). Reduced expression of microenvironmental Th1 cytokines accompanies adenomas–carcinomas sequence of colorectum. Cancer Immunology Immunotherapy. 56(7). 985–995. 57 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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