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Sökning: WFRF:(Norlén Olov) > Granberg Dan

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1.
  • Crona, Joakim, et al. (författare)
  • Metastases from Neuroendocrine Tumors to the Breast Are More Common than Previously Thought. A Diagnostic Pitfall?
  • 2013
  • Ingår i: World Journal of Surgery. - : Springer Science and Business Media LLC. - 0364-2313 .- 1432-2323. ; 37:7, s. 1701-1706
  • Tidskriftsartikel (refereegranskat)abstract
    • Metastases from neuroendocrine tumors (NETs) to the breast have been described as a rare phenomenon. Presentation, imaging results, and cytopathologic findings of these tumours may closely mimic those of a mammary carcinoma. This study was a retrospective review of 661 patients with metastatic NETs, of whom 280 were females, treated at Uppsala University Hospital, Uppsala, Sweden. Patients with pathological breast lesions were identified. Histopathological slides from available NET breast lesions were analyzed for mammary carcinoma and neuroendocrine markers. We have identified 20 female patients with NET metastases to the breast, 11/235 with small intestinal NETs, 8/55 with lung NETs, and 1/6 with thymic NETs. There were no male patients with NET metastatic to the breast. Four patients had their breast lesion initially diagnosed as mammary carcinoma. Retrospectively, these lesions showed negative staining for mammary carcinoma markers. Metastases to the breast from neuroendocrine tumors may be more common than previously thought. Patients with a lesion to the breast and symptoms typical for NET may benefit from additional histopathological investigation, because NET metastases and mammary carcinoma have different immunohistochemical profiles.
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2.
  • Vyakaranam, Achyut Ram, et al. (författare)
  • Favorable Outcome in Patients with Pheochromocytoma and Paraganglioma Treated with 177Lu-DOTATATE.
  • 2019
  • Ingår i: Cancers. - : MDPI AG. - 2072-6694. ; 11:7
  • Tidskriftsartikel (refereegranskat)abstract
    • Peptide receptor radiotherapy (PRRT) with 177Lu-DOTATATE has emerged as a promising therapy for neuroendocrine tumors (NETs). This retrospective cohort study aimed to assess the outcome of PRRT for 22 patients with histopathologically confirmed pheochromocytoma (PCC) and paraganglioma (PGL), of which two were localized and 20 metastatic. Radiological response utilized response evaluation criteria in solid tumors 1.1 and toxicity was graded according to common terminology criteria for adverse events version 4. Median 4 (range 3-11) 7.4 GBq cycles of 177Lu-DOTATATE were administered as first-line therapy (n = 13) or because of progressive disease (n = 9). Partial response (PR) was achieved in two and stable disease (SD) in 20 patients. The median overall survival (OS) was 49.6 (range 8.2-139) months and median progression-free survival (PFS) was 21.6 (range 6.7-138) months. Scintigraphic response >50% was achieved in 9/19 (47%) patients. Biochemical response (>50% decrease) of chromogranin A was found in 6/15 (40%) patients and of catecholamines in 3/12 (25%) patients. Subgroup analysis showed Ki-67 <15% associated with longer OS (p = 0.013) and PFS (p = 0.005). PRRT as first-line therapy was associated with increased OS (p = 0.041). No hematological or kidney toxicity grade 3-4 was registered. 177Lu-DOTATATE therapy was associated with favorable outcome and low toxicity. High Ki-67 (≥15%) and PRRT received because of progression on previous therapy could constitute negative predictive factors for OS.
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