Olov Norlén

¹¹C-Hydroxyephedrine PET/CT for preoperative surgical planning in large pheochromocytoma and paraganglioma.

Vyakaranam, Achyut Ram; Norlén, Olov; Akural, Alina; Crona, Joakim et al.

Part of Journal of neuroendocrinology, 2026

DOI for ¹¹C-Hydroxyephedrine PET/CT for preoperative surgical planning in large pheochromocytoma and paraganglioma.
Download full text (pdf) of ¹¹C-Hydroxyephedrine PET/CT for preoperative surgical planning in large pheochromocytoma and paraganglioma.

Single-Cell Comparison of Small Intestinal Neuroendocrine Tumors and Enterochromaffin Cells from Two Patients

Axling, Fredrik; Barazeghi, Elham; Hellman, Per; Norlén, Olov et al.

Part of Cancers, p. 435-435, 2026

Locoregional progression and surgical indications in stage IV asymptomatic SI-NETs

Klimàcek, Branislav; Åkerström, Tobias; Annebäck, Matilda; Hellman, Per et al.

Part of Endocrine-Related Cancer, 2025

Evaluation of hand-assisted laparoscopic surgery of small intestinal neuroendocrine tumours as an alternative surgical treatment to open surgery

Klimàcek, Branislav; Åkerström, Tobias; Annebäck, Matilda; Hellman, Per et al.

Part of Langenbeck's archives of surgery (Print), 2025

Loss of MBD2 is associated with tumor growth in small intestinal neuroendocrine tumors

Barazeghi, Elham; Backman, Samuel; Hellman, Per; Norlén, Olov et al.

Part of Endocrine Connections, 2025

Early cholecystectomy for cholecystitis in patients with severe comorbidity

Osterman, Erik; Norlén, Olov; Linder, Fredrik

Part of HPB, p. 1455-1464, 2025

Major systemic infection following breast cancer surgery and oncological outcomes

Adwall, Linda; Fredriksson, Irma; Hultin, Hella; Stålberg, Peter et al.

Part of BJS, 2025

Standardizing the reporting of postoperative hypoparathyroidism following thyroidectomy: consensus statement from the European Society of Endocrine Surgeons, the American Association of Endocrine Surgeons, and the International Association of Endocrine Surgeons

Barczynski, Marcin; Van Den Heede, Klaas; Lee, James C.; Lorenz, Kerstin et al.

Part of BJS, 2025

Intratumoural aldosterone and CYP11B2 expression levels among different genotypes of aldosterone producing tumours

Åkerström, Tobias; Klimàcek, Branislav; Annebäck, Matilda; Norlén, Olov et al.

Part of Endocrine Connections, 2025

Quality of life in patients with permanent hypoparathyroidism after thyroidectomy for benign thyroid disease: population-based study with long-term follow-up

Annebäck, Matilda; Wachtmeister, Sofia; Hedberg, Jakob; Stålberg, Peter et al.

Part of BJS Open, 2025

Surgery for advanced pancreatic neuroendocrine neoplasms: recommendations based on a consensus meeting of the European Society of Endocrine Surgeons (ESES)

Van Beek, Dirk-Jan; Van Den Heede, Klaas; Rinkes, Inne Borel; Norlén, Olov et al.

Part of British Journal of Surgery, 2024

DOI for Surgery for advanced pancreatic neuroendocrine neoplasms: recommendations based on a consensus meeting of the European Society of Endocrine Surgeons (ESES)

Postoperative complications after breast cancer surgery and effect on recurrence and survival: population-based cohort study

Adwall, Linda; Fredriksson, Irma; Hultin, Hella; Mani, Maria et al.

Part of BJS Open, 2024

Validating the risk of hypoparathyroidism after total thyroidectomy in a population-based cohort: plea for improved follow-up

Annebäck, Matilda; Osterman, Carolina; Arlebrink, Jesper; Mellerstedt, Simon et al.

Part of British Journal of Surgery, 2024

Author's Reply: Overall Survival in Patients with Stage IV Pan-NET Eligible for Liver Transplantation

Kjaer, Josefine; Norlén, Olov; Hellman, Per; Stålberg, Peter

Part of World Journal of Surgery, p. 1084-1085, 2023

DOI for Author's Reply: Overall Survival in Patients with Stage IV Pan-NET Eligible for Liver Transplantation

Overall Survival in Patients with Stage IV Pan-NET Eligible for Liver Transplantation

Kjaer, Josefine; Smith, Sara; Hellman, Per; Stålberg, Peter et al.

Part of World Journal of Surgery, p. 340-347, 2023

Prospective Evaluation of Complications and Associated Risk Factors in Breast Cancer Surgery

Adwall, Linda; Hultin, Hella; Mani, Maria; Norlén, Olov

Part of Journal of Oncology, 2022

Preoperative prophylactic active vitamin D to streamline total thyroidectomy

Annebäck, Matilda; McHale Sjödin, Edward; Hellman, Per; Stålberg, Peter et al.

Part of BJS Open, 2022

International Validation of a Nomogram to Predict Recurrence after Resection of Grade 1 and 2 Nonfunctioning Pancreatic Neuroendocrine Tumors

Heidsma, Charlotte M; van Roessel, Stijn; van Dieren, Susan; Engelsman, Anton F et al.

Part of Neuroendocrinology, p. 571-579, 2022

Benefit of Primary Tumor Resection in Stage IV, Grade 1 and 2, Pancreatic Neuroendocrine Tumors: A Propensity-Score Matched Cohort Study

Kjaer, Josefin; Clancy, Thomas E.; Thornell, Anders; Andersson, Niklas et al.

Part of Annals of Surgery Open, 2022

Primary small intestinal neuroendocrine tumors are highly prevalent and often multiple before metastatic disease develops

Eriksson, John; Norlén, Olov; Ögren, M.; Garmo, Hans et al.

Part of Scandinavian Journal of Surgery, p. 44-50, 2021

DOI for Primary small intestinal neuroendocrine tumors are highly prevalent and often multiple before metastatic disease develops

Adrenalectomy in ectopic Cushing's syndrome: A retrospective cohort study from a tertiary care centre

Lase, Ieva; Grönberg, Malin; Norlén, Olov; Stålberg, Peter et al.

Part of Journal of neuroendocrinology, 2021

DOI for Adrenalectomy in ectopic Cushing's syndrome: A retrospective cohort study from a tertiary care centre

Association of postoperative infection and oncological outcome after breast cancer surgery

Adwall, Linda; Pantiora, Eirini; Hultin, Hella; Norlén, Olov

Part of BJS Open, 2021

Characterization of Human Medullary Thyroid Carcinoma Glycosphingolipids Identifies Potential Cancer Markers

Säljö, Karin; Thornell, Anders; Jin, Chunsheng; Norlén, Olov et al.

Part of International Journal of Molecular Sciences, 2021

Characterization of Glycosphingolipids in the Human Parathyroid and Thyroid Glands

Säljö, Karin; Thornell, Anders; Jin, Chunsheng; Stålberg, Peter et al.

Part of International Journal of Molecular Sciences, 2021

Risk of Permanent Hypoparathyroidism After Total Thyroidectomy for Benign Disease: A Nationwide Population-based Cohort Study From Sweden

Annebäck, Matilda; Hedberg, Jakob; Almquist, Martin; Stålberg, Peter et al.

Part of Annals of Surgery, 2021

DOI for Risk of Permanent Hypoparathyroidism After Total Thyroidectomy for Benign Disease: A Nationwide Population-based Cohort Study From Sweden

Long-term outcome after resection and thermal hepatic ablation of pancreatic neuroendocrine tumour liver metastases

Kjaer, Josefin; Stålberg, Peter; Crona, Joakim; Welin, Staffan et al.

Part of BJS Open, 2021

EZH2 presents a therapeutic target for neuroendocrine tumors of the small intestine

Barazeghi, Elham; Hellman, Per; Norlén, Olov; Westin, Gunnar et al.

Part of Scientific Reports, 2021

Characterization of glycosphingolipids from gastrointestinal stromal tumours

Santos, Licínia; Jin, Chunsheng; Gazárková, Taťána; Thornell, Anders et al.

Part of Scientific Reports, 2020

High-grade progression confers poor survival in pancreatic neuroendocrine tumors

Botling, Johan; Lamarca, Angela; Bajic, Duska; Norlén, Olov et al.

Part of Neuroendocrinology, p. 891-898, 2020

DOI for High-grade progression confers poor survival in pancreatic neuroendocrine tumors

C-11-hydroxy-ephedrine-PET/CT in the Diagnosis of Pheochromocytoma and Paraganglioma

Vyakaranam, Achyut Ram; Crona, Joakim; Norlén, Olov; Hellman, Per et al.

Part of Cancers, 2019

Favorable Outcome in Patients with Pheochromocytoma and Paraganglioma Treated with ¹⁷⁷Lu-DOTATATE.

Vyakaranam, Achyut Ram; Crona, Joakim; Norlén, Olov; Granberg, Dan et al.

Part of Cancers, 2019

Applying the use of novel biomarkers for neuroendocrine tumors in the clinic: where are we now?

Daskalakis, Kosmas; Norlén, Olov; Hellman, Per; Stålberg, Peter

Part of INTERNATIONAL JOURNAL OF ENDOCRINE ONCOLOGY, 2019

Decrease of 5-hydroxymethylcytosine and TET1 with nuclear exclusion of TET2 in small intestinal neuroendocrine tumors.

Barazeghi, Elham; Prabhawa, Surendra; Norlén, Olov; Hellman, Per et al.

Part of BMC Cancer, 2018

Preoperative Ga-68-DOTA-Somatostatin Analog-PET/CT Hybrid Imaging Increases Detection Rate of Intra-abdominal Small Intestinal Neuroendocrine Tumor Lesions

Norlén, Olov; Montan, Harald; Hellman, Per; Stålberg, Peter et al.

Part of World Journal of Surgery, p. 498-505, 2018

DOI for Preoperative Ga-68-DOTA-Somatostatin Analog-PET/CT Hybrid Imaging Increases Detection Rate of Intra-abdominal Small Intestinal Neuroendocrine Tumor Lesions

Randomized trial of low versus high carbon dioxide insufflation pressures in posterior retroperitoneoscopic adrenalectomy

Fraser, Sheila; Norlén, Olov; Bender, Kyle; Davidson, Joanne et al.

Part of Surgery, p. 1128-1133, 2018

DOI for Randomized trial of low versus high carbon dioxide insufflation pressures in posterior retroperitoneoscopic adrenalectomy

Ex vivo activity of cytotoxic drugs and targeted agents in small intestinal neuroendocrine tumors

Daskalakis, Kosmas; Norlén, Olov; Karakatsanis, Andreas; Hellman, Per et al.

Part of Endocrine-Related Cancer, p. 471-480, 2018

DOI for Ex vivo activity of cytotoxic drugs and targeted agents in small intestinal neuroendocrine tumors

Ex Vivo Activity of Cytotoxic Drugs and Targeted Agents in Small Intestinal Neuroendocrine Tumors

Daskalakis, Kosmas; Norlén, Olov; Karakatsanis, Andreas; Hellman, Per et al.

Part of Neuroendocrinology, p. 189-189, 2018

DOI for Ex Vivo Activity of Cytotoxic Drugs and Targeted Agents in Small Intestinal Neuroendocrine Tumors

Association of a Prophylactic surgical approach to Stage IV Small Intestinal Neuroendocrine Tumors with Survival.

Daskalakis, Kosmas; Karakatsanis, Andreas; Hessman, Ola; Stuart, Heather C. et al.

Part of JAMA Oncology, p. 183-189, 2018

DOI for Association of a Prophylactic surgical approach to Stage IV Small Intestinal Neuroendocrine Tumors with Survival.

DcR3, TFF3 and Midkine are Novel Serum Biomarkers in Small Intestinal Neuroendocrine Tumors

Edfeldt, Katarina; Daskalakis, Kosmas; Bäcklin, Christofer; Norlén, Olov et al.

Part of Neuroendocrinology, p. 170-181, 2017

DOI for DcR3, TFF3 and Midkine are Novel Serum Biomarkers in Small Intestinal Neuroendocrine Tumors

Bilateral recurrent laryngeal nerve injury in a specialized thyroid surgery unit: would routine intraoperative neuromonitoring alter outcomes?

Sarkis, Leba M; Zaidi, Nisar; Norlén, Olov; Delbridge, Leigh W et al.

Part of ANZ journal of surgery, p. 364-367, 2017

DOI for Bilateral recurrent laryngeal nerve injury in a specialized thyroid surgery unit: would routine intraoperative neuromonitoring alter outcomes?

Papillary thyroid cancer in childhood: is parental screening helpful?

Stephenson, Carlos; Norlén, Olov; Shun, Albert; Karpelowsky, Jonathon et al.

Part of ANZ journal of surgery, p. 615-618, 2017

DOI for Papillary thyroid cancer in childhood: is parental screening helpful?

Multiple and Secondary Hormone Secretion in Patients With Metastatic Pancreatic Neuroendocrine Tumors

Crona, Joakim; Norlén, Olov; Antonodimitrakis, Pantelis; Welin, Staffan et al.

Part of Pancreas, p. 441-441, 2017

DOI for Multiple and Secondary Hormone Secretion in Patients With Metastatic Pancreatic Neuroendocrine Tumors

Detection of Somatic Mutations in Gastroenteropancreatic Neuroendocrine Tumors Using Targeted Deep Sequencing

Backman, Samuel; Norlén, Olov; Eriksson, Barbro; Skogseid, Britt et al.

Part of Anticancer Research, p. 705-712, 2017

DOI for Detection of Somatic Mutations in Gastroenteropancreatic Neuroendocrine Tumors Using Targeted Deep Sequencing

Clinical signs of fibrosis in small intestinal neuroendocrine tumours

Daskalakis, Kosmas; Karakatsanis, Andreas; Stålberg, Peter; Norlén, Olov et al.

Part of British Journal of Surgery, p. 69-75, 2017

DOI for Clinical signs of fibrosis in small intestinal neuroendocrine tumours

A Role of TETs and 5-Hydroxymethylcytosine in SI-NETs

Barazeghi, Elham; Prabhawa, Surendra; Hellman, Per; Norlén, Olov et al.

Part of Neuroendocrinology, p. 18-18, 2017

Incidence and Risk Factors for Occult Level 3 Lymph Node Metastases in Papillary Thyroid Cancer

Fraser, Sheila; Zaidi, Nisar; Norlén, Olov; Glover, Anthony et al.

Part of Annals of Surgical Oncology, p. 3587-3592, 2016

DOI for Incidence and Risk Factors for Occult Level 3 Lymph Node Metastases in Papillary Thyroid Cancer

Multiple and Secondary Hormone Secretion in Patients With Metastatic Pancreatic Neuroendocrine Tumours

Crona, Joakim; Norlén, Olov; Antonodimitrakis, Pantelis; Welin, Staffan et al.

Part of Journal of Clinical Endocrinology and Metabolism, p. 445-452, 2016

DOI for Multiple and Secondary Hormone Secretion in Patients With Metastatic Pancreatic Neuroendocrine Tumours

Long-Term Surveillance of Treated Hyperparathyroidism for Multiple Endocrine Neoplasia Type 1: Recurrence or Hypoparathyroidism?

Fyrsten, Ellen; Norlén, Olov; Hessman, Ola; Stålberg, Peter et al.

Part of World Journal of Surgery, p. 615-621, 2016

DOI for Long-Term Surveillance of Treated Hyperparathyroidism for Multiple Endocrine Neoplasia Type 1: Recurrence or Hypoparathyroidism?

5-Hydroxymethylcytosine discriminates between parathyroid adenoma and carcinoma

Barazeghi, Elham; Gill, Anthony J.; Sidhu, Stan; Norlen, Olov et al.

Part of Clinical Epigenetics, 2016

Midkine Is a New Novel Serum Biomarker in Small Intestinal Neuroendocrine Tumors (SI-NETs)

Daskalakis, Kosmas; Edfeldt, Katarina; Norlén, Olov; Karakatsanis, Andreas et al.

Part of Neuroendocrinology, p. 45-45, 2016

Somatic Mutations and Genetic Heterogeneity at the CDKN1B Locus in Small Intestinal Neuroendocrine Tumors

Crona, Joakim; Gustavsson, Tobias; Norlén, Olov; Edfeldt, Katarina et al.

Part of Annals of Surgical Oncology, p. 1428-1435, 2015

DOI for Somatic Mutations and Genetic Heterogeneity at the CDKN1B Locus in Small Intestinal Neuroendocrine Tumors

Gallstone Ileus Post-cholecystectomy

Mansson, Christopher; Norlén, Olov

Part of Acta Chirurgica Belgica, p. 159-161, 2015

The Weight of the Resected Gland Predicts Rate of Success After Image-Guided Focused Parathyroidectomy

Norlén, Olov; Glover, Anthony; Zaidi, Nisar; Aniss, Adam et al.

Part of World Journal of Surgery, p. 1922-1927, 2015

DOI for The Weight of the Resected Gland Predicts Rate of Success After Image-Guided Focused Parathyroidectomy

Risk of malignancy for each Bethesda class in pediatric thyroid nodules

Norlén, Olov; Charlton, Amanda; Sarkis, Leba M.; Henwood, Tony et al.

Part of Journal of Pediatric Surgery, p. 1147-1149, 2015

DOI for Risk of malignancy for each Bethesda class in pediatric thyroid nodules

No need to abandon focused parathyroidectomy: a multicenter study of long-term outcome after surgery for primary hyperparathyroidism.

Norlén, Olov; Wang, Kuan Chi; Tay, Yeng Kwang; Johnson, William R et al.

Part of Annals of Surgery, 2015

DOI for No need to abandon focused parathyroidectomy: a multicenter study of long-term outcome after surgery for primary hyperparathyroidism.

Use of the Nerve Integrity Monitor during Thyroid Surgery Aids Identification of the External Branch of the Superior Laryngeal Nerve.

Glover, Anthony R; Norlén, Olov; Gundara, Justin S; Morris, Michael et al.

Part of Annals of Surgical Oncology, 2015

DOI for Use of the Nerve Integrity Monitor during Thyroid Surgery Aids Identification of the External Branch of the Superior Laryngeal Nerve.

Focused image-guided parathyroidectomy in the current management of primary hyperparathyroidism.

Langusch, Catherine C; Norlén, Olov; Titmuss, Angela; Donoghue, Kim et al.

Part of Archives of Disease in Childhood, 2015

DOI for Focused image-guided parathyroidectomy in the current management of primary hyperparathyroidism.

Indication for Liver Transplantation in Young Patients with Small Intestinal NETs Is Rare?

Norlén, Olov; Daskalakis, Kosmas; Öberg, Kjell; Åkerström, Göran et al.

Part of World Journal of Surgery, p. 742-747, 2014

DOI for Indication for Liver Transplantation in Young Patients with Small Intestinal NETs Is Rare?

Peritoneal carcinomatosis from small intestinal neuroendocrine tumors: Clinical course and genetic profiling

Norlén, Olov; Edfeldt, Katarina; Åkerström, Göran; Westin, Gunnar et al.

Part of Surgery, p. 1512-1522, 2014

DOI for Peritoneal carcinomatosis from small intestinal neuroendocrine tumors: Clinical course and genetic profiling

Long-term outcome after parathyroidectomy for lithium-induced hyperparathyroidism

Norlén, Olov; Sidhu, S.; Sywak, M.; Delbridge, L.

Part of British Journal of Surgery, p. 1252-1256, 2014

DOI for Long-term outcome after parathyroidectomy for lithium-induced hyperparathyroidism

Bethesda III Thyroid Nodules: The Role of Ultrasound in Clinical Decision Making

Norlén, Olov; Popadich, Aleksandra; Kruijff, Schelto; Gill, Anthony J. et al.

Part of Annals of Surgical Oncology, p. 3528-3533, 2014

DOI for Bethesda III Thyroid Nodules: The Role of Ultrasound in Clinical Decision Making

Metastases from Neuroendocrine Tumors to the Breast Are More Common than Previously Thought. A Diagnostic Pitfall?

Crona, Joakim; Granberg, Dan; Norlén, Olov; Wärnberg, Fredrik et al.

Part of World Journal of Surgery, p. 1701-1706, 2013

DOI for Metastases from Neuroendocrine Tumors to the Breast Are More Common than Previously Thought. A Diagnostic Pitfall?

Outcome after resection and radiofrequency ablation of liver metastases from small intestinal neuroendocrine tumours

Norlen, Olov; Stalberg, Peter; Zedenius, J.; Hellman, Per

Part of British Journal of Surgery, p. 1505-U1514, 2013

DOI for Outcome after resection and radiofrequency ablation of liver metastases from small intestinal neuroendocrine tumours

Long-Term Results of Surgery for Small Intestinal Neuroendocrine Tumors at a Tertiary Referral Center

Norlén, Olov; Stålberg, Peter; Öberg, Kjell; Eriksson, John et al.

Part of World Journal of Surgery, p. 1419-1431, 2012

DOI for Long-Term Results of Surgery for Small Intestinal Neuroendocrine Tumors at a Tertiary Referral Center

¹¹C-5-hydroxytryptophan positron emission tomography after radiofrequency ablation of neuroendocrine tumor liver metastases

Norlén, Olov; Nilsson, Anders; Krause, Johan; Stålberg, Peter et al.

Part of Nuclear Medicine and Biology, p. 883-890, 2012

DOI for ¹¹C-5-hydroxytryptophan positron emission tomography after radiofrequency ablation of neuroendocrine tumor liver metastases

Prophylactic Cholecystectomy in Midgut Carcinoid Patients

Norlén, Olov; Hessman, Ola; Stålberg, Peter; Åkerström, Göran et al.

Part of World Journal of Surgery, p. 1361-1367, 2010

DOI for Prophylactic Cholecystectomy in Midgut Carcinoid Patients

Primary small intestinal tumours are highly prevalent and often multiple before metastatic disease develops

Eriksson, John; Norlén, Olov; Ögren, Mats; Garmo, Hans et al.

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