Publications by authors named "Anne-Segolene Cottereau"

Classic Hodgkin lymphoma (HL) is a distinct entity among hematological malignancies of B-cell origin. It is characterized by its unique histopathological features and generally favorable prognosis. Over the years, advancements in understanding its pathogenesis, coupled with refined diagnostic and evaluation modalities, as well as therapeutic strategies, have significantly transformed the landscape of HL management.

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Understanding the differences between prognostic and predictive indices is imperative for medical research advances. We have developed a new prognostic measure that will identify the strengths, limitations, and potential applications in clinical practice.

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Total metabolic tumor volume (TMTV) is prognostic in lymphoma. However, cutoff values for risk stratification vary markedly, according to the tumor delineation method used. We aimed to create a standardized TMTV benchmark dataset allowing TMTV to be tested and applied as a reproducible biomarker.

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Everolimus and peptide receptor radionuclide therapy (PRRT, Lu-DOTATATE) are 2 treatments recommended in guidelines for gastroenteropancreatic metastatic neuroendocrine tumors. However, the best treatment sequence remains unknown. We designed a retrospective multicenter study that included patients from the national prospective database of the Groupe d'Étude des Tumeurs Endocrines who had been treated using everolimus and PRRT between April 2004 and October 2022.

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JCO The primary analysis of the Ro-CHOP phase III randomized controlled trial (ClinicalTrials.gov identifier: NCT01796002) established that romidepsin (Ro) plus cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP) did not yield an increased efficacy compared with CHOP alone as first-line treatment of peripheral T-cell lymphoma. We report the planned final analysis 5 years after the last patient enrolled.

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A mesenteric mass (MM), characterized by fibrotic reaction, is present in most small-intestinal neuroendocrine tumors (SI-NETs). Lu-DOTATATE peptide receptor radionuclide therapy (PRRT) has shown its efficacy in patients with progressive SI-NETs. However, because of specific tissue characteristics of desmoplastic MMs, we hypothesize that these lesions may be refractory to Lu-DOTATATE PRRT.

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Baseline [F]FDG PET/CT radiomic features can improve the survival prediction in patients with diffuse large B-cell lymphoma (DLBCL). The purpose of this study was to investigate whether characterizing tumor locations relative to the spleen location in baseline [F]FDG PET/CT images predicts survival in patients with DLBCL and improves the predictive value of total metabolic tumor volume (TMTV) and age-adjusted international prognostic index (IPI). This retrospective study included 301 DLBCL patients from the REMARC (NCT01122472) cohort.

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BRAF and MEK inhibitors are cornerstones of the redifferentiation strategy in metastatic radioactive iodine (RAI)-resistant mutant thyroid cancers. We explored the exposure-toxicity relationship for dose-limiting toxicity (DLT) onset in patients treated with dabrafenib and/or trametinib and investigated whether plasma exposure was associated with RAI reuptake. We conducted a retrospective monocentric study in which we reviewed the electronic medical records of patients treated in our institution with a tumor redifferentiation strategy, for whom plasma concentration of dabrafenib, its active metabolite hydroxy-dabrafenib, and trametinib was measured.

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Follicular lymphoma is the most common indolent lymphoma accounting for approximately 20%-25% of all new non-Hodgkin lymphoma diagnoses in western countries. Whilst outcomes are mostly favorable, the spectrum of clinical phenotypes includes high-risk groups with significantly inferior outcomes. This review discusses recent updates in risk stratification and treatment approaches from upfront treatment for limited and advanced stage follicular lymphoma to the growing options for relapsed, refractory disease with perspectives on how to approach this from a personalized lens.

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Pancreatic neuroendocrine tumors are rare tumors showing a rising incidence. They are well-differentiated tumors, classified by grade according to their Ki67 index value (grade 1 to 3). Pancreatic neuroendocrine tumors are mainly sporadic tumors but about 10% arise within endocrine tumor syndromes such as multiple endocrine neoplasia type 1.

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Purpose Of The Report: Adrenocortical carcinoma (ACC) is an extremely rare endocrine malignancy, which cannot always be diagnosed during conventional radiology and hormonal investigations. 18 F-FDG PET could help predict malignancy, but more data are necessary to support future guidelines.

Methods: A cohort of 63 patients with histologically proven ACC (n = 55) or metastatic ACC with steroid oversecretion (n = 8) was assembled.

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Article Synopsis
  • AI can help find and analyze problems in the adrenal glands, which are important parts of our body.
  • Even though many AI tools have been created, there isn't a perfect one that does everything right yet.
  • Researchers are sharing early results of these AI tools, but they still need more testing before they can be used regularly in hospitals.
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Aggressive large B-cell lymphoma (LBCL) has variable outcomes. Current prognostic tools use factors for risk stratification that inadequately identify patients at high risk of refractory disease or relapse before initial treatment. A model associating 2 risk factors, total metabolic tumor volume (TMTV) >220 cm3 (determined by fluorine-18 fluorodeoxyglucose positron emission tomography coupled with computed tomography) and performance status (PS) ≥2, identified as prognostic in 301 older patients in the REMARC trial (#NCT01122472), was validated in 2174 patients of all ages treated in 2 clinical trials, PETAL (Positron Emission Tomography-Guided Therapy of Aggressive Non-Hodgkin Lymphomas; N = 510) and GOYA (N = 1315), and in real-world clinics (N = 349) across Europe and the United States.

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Total metabolic tumor volume (TMTV) and tumor dissemination (Dmax) calculated from baseline F-FDG PET/CT images are prognostic biomarkers in diffuse large B-cell lymphoma (DLBCL) patients. Yet, their automated calculation remains challenging. The purpose of this study was to investigate whether TMTV and Dmax features could be replaced by surrogate features automatically calculated using an artificial intelligence (AI) algorithm from only 2 maximum-intensity projections (MIPs) of the whole-body F-FDG PET images.

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Article Synopsis
  • Stage IIB Hodgkin lymphoma (HL) patients with certain risk factors have a poor prognosis and are treated either as limited or advanced stage, with differing clinical trials comparing these treatment approaches.
  • A study involving 148 patients showed that baseline total metabolic tumor volume (TMTV) and responses after two cycles of chemotherapy significantly influenced progression-free survival rates, with a median follow-up of 4.1 years showing PFS rates around 88%.
  • The findings suggest that both upfront ABVD plus radiation therapy and upfront escBEACOPP without radiotherapy yield similar outcomes in these high-risk patients, while TMTV can effectively stratify their risk at baseline.
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We evaluated the prognostic role of the largest distance between two lesions (Dmax), defined by positron emission tomography (PET) in a retrospective cohort of newly diagnosed classical Hodgkin Lymphoma (cHL) patients. We also explored the molecular bases underlying Dmax through a gene expression analysis of diagnostic biopsies. We included patients diagnosed with cHL from 2007 to 2020, initially treated with ABVD, with available baseline PET for review, and with at least two FDG avid lesions.

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Article Synopsis
  • * A 3D V-NET model, trained on 1218 baseline 18FDG-PET/CT scans, achieved strong segmentation performance with mean dice scores of 0.84 for training and validation sets, and a slightly lower score of 0.76 for the test set.
  • * The deep learning model shows significant potential to reduce the time required for TMTV computation while maintaining high accuracy, with Spearman's correlations between manual and predicted TMTV ranging from 0.92
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Metastatic thyroid cancers may dedifferentiate and become radioactive-iodine (RAI) resistant. A redifferentiating effect can be observed with inhibitors of the mitogen-activated protein kinase pathway in thyroid cancers with point mutation in oncogenes. This effect allows RAI reuptake that may lead to a therapeutic effect different from the antitumoral effect of the inhibitor.

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Article Synopsis
  • - The detection and characterization of adrenal lesions have improved significantly over the past 20 years, with imaging techniques like CT being central for diagnosis, especially for hormone-secreting lesions.
  • - Non-functioning adrenal lesions pose a challenge for accurate diagnosis, often requiring a combination of imaging methods to determine which lesions necessitate surgery or biopsy.
  • - New advancements such as dual-energy CT, MRI, and F-FDG PET/CT are enhancing the ability to differentiate between benign and malignant lesions, while emerging technologies like radiomics and artificial intelligence offer promising results in improving diagnostic accuracy.
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Purpose: The purpose of this study was to assess the diagnostic capabilities of preoperative conventional imaging (Tc-MIBI scintigraphy, cervical ultrasonography [CUS]) and F-fluorocholine PET/CT (FCH PET/CT) in the detection of hyperfunctioning parathyroid gland in patients with primary hyperparathyroidism (PHPT) used alone or as a single imaging set.

Materials And Methods: A total of 51 consecutive patients (6 men, 45 women; mean age, 62 ± 11.6 [SD] years; age range: 28-86 years) with biochemically confirmed PHPT who underwent CUS, single-tracer dual phase Tc-MIBI scintigraphy and FCH PET/CT were retrospectively included.

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