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  1. Article ; Online: Multimodality imaging of breast hematomas and their mimickers.

    Molière, Sébastien

    The British journal of radiology

    2022  Volume 95, Issue 1133, Page(s) 20210514

    Abstract: While breast hematomas are common, their imaging features are often underrecognized or mistaken for other conditions.Diagnosis of acute hematomas is generally easy when associated with a recent history of breast trauma, surgery, or percutaneous biopsy. ... ...

    Abstract While breast hematomas are common, their imaging features are often underrecognized or mistaken for other conditions.Diagnosis of acute hematomas is generally easy when associated with a recent history of breast trauma, surgery, or percutaneous biopsy. However, minor trauma might not always be remembered, and breast hematoma might have longlasting imaging manifestations when associated with fat necrosis. Also, because of the increasing use of breast MRI and FDG-PET/CT, breast hematomas are increasingly detected as incidentalomas and may mimic malignancies.Conversely, breast hematomas may also be associated with authentic malignant processes.In this pictorial review, we present the natural history of breast hematomas, their various imaging features, as well as their differential diagnoses, highlighting the situations requiring histopathological correlation.
    MeSH term(s) Breast/diagnostic imaging ; Breast/pathology ; Hematoma/diagnostic imaging ; Humans ; Multimodal Imaging ; Positron Emission Tomography Computed Tomography ; Positron-Emission Tomography/methods
    Language English
    Publishing date 2022-03-09
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2982-8
    ISSN 1748-880X ; 0007-1285
    ISSN (online) 1748-880X
    ISSN 0007-1285
    DOI 10.1259/bjr.20210514
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Peut-on surseoir au curage axillaire en cas de carcinome mammaire invasif avec envahissement ganglionnaire ?

    Brousse, Susie / Lafond, Clémentine / Schmitt, Martin / Guillermet, Sophie / Molière, Sébastien / Mathelin, Carole

    Gynecologie, obstetrique, fertilite & senologie

    2024  Volume 52, Issue 3, Page(s) 132–141

    Abstract: Objectives: The indications and modalities of breast and axillary surgery are undergoing profound change, with the aim of personalizing surgical management while avoiding over-treatment. To update best practices for axillary surgery, four questions were ...

    Title translation Can we avoid axillary lymph node dissection in patients with node positive invasive breast carcinoma?
    Abstract Objectives: The indications and modalities of breast and axillary surgery are undergoing profound change, with the aim of personalizing surgical management while avoiding over-treatment. To update best practices for axillary surgery, four questions were selected by the Senology Commission of the Collège National des Gynécologues et Obstétriciens Français (CNGOF), focusing on, firstly, the definition and evaluation of targeted axillary dissection (TAD) techniques; secondly, the possibility of surgical de-escalation in case of initial lymph node involvement while performing initial surgery; thirdly, in case of surgery following neo-adjuvant systemic therapy (NAST), and fourthly, contra-indications to de-escalation of axillary surgery to allow access to particular adjuvant systemic therapies.
    Methods: The Senology Commission based its responses primarily on an analysis of the international literature, clinical practice recommendations and national and international guidelines.
    Results: Firstly, TAD is a technique that combines excision of clipped metastatic axillary node(s) and the axillary sentinel lymph nodes (ASLNs). The detection rate and sensitivity are increased but it still needs to be standardized and practices better evaluated. Secondly, TAD represents an alternative to axillary clearance in cases of metastatic involvement of a single node that can be resected. Thirdly, neither TAD nor ASLN alone is recommended in France after NAST outside of clinical trials, although it is used in several countries in cases of complete pathological response in the lymph nodes, and when at least three lymph nodes have been removed. Fourthly, as some adjuvant targeted therapies are indicated in cases of lymph node invasion of more than three lymph nodes, the place of TAD in this context remains to be defined.
    Conclusion: Axillary surgical de-escalation can limit the morbidity of axillary clearance. Having proved that TAD does not reduce patient survival, it will most probably replace axillary clearance in well-defined indications. This will require prior standardization of the method and its indications and contra-indications, particularly to enable the use of new targeted therapies.
    MeSH term(s) Humans ; Female ; Lymph Node Excision ; Lymph Nodes/surgery ; Breast Neoplasms/surgery ; Breast ; Combined Modality Therapy ; Pathologic Complete Response
    Language French
    Publishing date 2024-01-06
    Publishing country France
    Document type English Abstract ; Journal Article
    ZDB-ID 2887456-0
    ISSN 2468-7189
    ISSN (online) 2468-7189
    DOI 10.1016/j.gofs.2023.12.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Roles of Matrix Metalloproteinases and Their Natural Inhibitors in Metabolism: Insights into Health and Disease.

    Molière, Sébastien / Jaulin, Amélie / Tomasetto, Catherine-Laure / Dali-Youcef, Nassim

    International journal of molecular sciences

    2023  Volume 24, Issue 13

    Abstract: Matrix metalloproteinases (MMPs) are a family of zinc-activated peptidases that can be classified into six major classes, including gelatinases, collagenases, stromelysins, matrilysins, membrane type metalloproteinases, and other unclassified MMPs. The ... ...

    Abstract Matrix metalloproteinases (MMPs) are a family of zinc-activated peptidases that can be classified into six major classes, including gelatinases, collagenases, stromelysins, matrilysins, membrane type metalloproteinases, and other unclassified MMPs. The activity of MMPs is regulated by natural inhibitors called tissue inhibitors of metalloproteinases (TIMPs). MMPs are involved in a wide range of biological processes, both in normal physiological conditions and pathological states. While some of these functions occur during development, others occur in postnatal life. Although the roles of several MMPs have been extensively studied in cancer and inflammation, their function in metabolism and metabolic diseases have only recently begun to be uncovered, particularly over the last two decades. This review aims to summarize the current knowledge regarding the metabolic roles of metalloproteinases in physiology, with a strong emphasis on adipose tissue homeostasis, and to highlight the consequences of impaired or exacerbated MMP actions in the development of metabolic disorders such as obesity, fatty liver disease, and type 2 diabetes.
    MeSH term(s) Humans ; Diabetes Mellitus, Type 2 ; Tissue Inhibitor of Metalloproteinases/metabolism ; Collagenases ; Gelatinases ; Matrix Metalloproteinase 3 ; Matrix Metalloproteinase Inhibitors/pharmacology ; Matrix Metalloproteinase Inhibitors/therapeutic use
    Chemical Substances Tissue Inhibitor of Metalloproteinases ; Collagenases (EC 3.4.24.-) ; Gelatinases (EC 3.4.24.-) ; Matrix Metalloproteinase 3 (EC 3.4.24.17) ; Matrix Metalloproteinase Inhibitors
    Language English
    Publishing date 2023-06-26
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms241310649
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: The Cowden Syndrome.

    Molière, Sébastien / Mathelin, Carole

    The New England journal of medicine

    2020  Volume 382, Issue 15, Page(s) e29

    MeSH term(s) Adult ; Biopsy ; Breast/diagnostic imaging ; Breast/pathology ; Breast Neoplasms/diagnostic imaging ; Carcinoma, Ductal, Breast/diagnostic imaging ; Female ; Hamartoma Syndrome, Multiple/diagnostic imaging ; Hamartoma Syndrome, Multiple/pathology ; Humans ; Lip/pathology ; Lip Neoplasms/pathology ; Magnetic Resonance Imaging ; PTEN Phosphohydrolase/genetics ; Papilloma/pathology
    Chemical Substances PTEN Phosphohydrolase (EC 3.1.3.67)
    Language English
    Publishing date 2020-04-08
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 207154-x
    ISSN 1533-4406 ; 0028-4793
    ISSN (online) 1533-4406
    ISSN 0028-4793
    DOI 10.1056/NEJMicm1910478
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Roles of Matrix Metalloproteinases and Their Natural Inhibitors in Metabolism

    Sébastien Molière / Amélie Jaulin / Catherine-Laure Tomasetto / Nassim Dali-Youcef

    International Journal of Molecular Sciences, Vol 24, Iss 10649, p

    Insights into Health and Disease

    2023  Volume 10649

    Abstract: Matrix metalloproteinases (MMPs) are a family of zinc-activated peptidases that can be classified into six major classes, including gelatinases, collagenases, stromelysins, matrilysins, membrane type metalloproteinases, and other unclassified MMPs. The ... ...

    Abstract Matrix metalloproteinases (MMPs) are a family of zinc-activated peptidases that can be classified into six major classes, including gelatinases, collagenases, stromelysins, matrilysins, membrane type metalloproteinases, and other unclassified MMPs. The activity of MMPs is regulated by natural inhibitors called tissue inhibitors of metalloproteinases (TIMPs). MMPs are involved in a wide range of biological processes, both in normal physiological conditions and pathological states. While some of these functions occur during development, others occur in postnatal life. Although the roles of several MMPs have been extensively studied in cancer and inflammation, their function in metabolism and metabolic diseases have only recently begun to be uncovered, particularly over the last two decades. This review aims to summarize the current knowledge regarding the metabolic roles of metalloproteinases in physiology, with a strong emphasis on adipose tissue homeostasis, and to highlight the consequences of impaired or exacerbated MMP actions in the development of metabolic disorders such as obesity, fatty liver disease, and type 2 diabetes.
    Keywords metabolism ; MMP ; TIMP ; adipose tissue ; obesity ; insulin resistance ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 610
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: MMP-11 expression in early luminal breast cancer: associations with clinical, MRI, pathological characteristics, and disease-free survival.

    Molière, Sébastien / Lodi, Massimo / Leblanc, Suzanne / Gressel, Anne / Mathelin, Carole / Alpy, Fabien / Chenard, Marie-Pierre / Tomasetto, Catherine

    BMC cancer

    2024  Volume 24, Issue 1, Page(s) 295

    Abstract: Background: Early hormone-positive breast cancers typically have favorable outcomes, yet long-term surveillance is crucial due to the risk of late recurrences. While many studies associate MMP-11 expression with poor prognosis in breast cancer, few ... ...

    Abstract Background: Early hormone-positive breast cancers typically have favorable outcomes, yet long-term surveillance is crucial due to the risk of late recurrences. While many studies associate MMP-11 expression with poor prognosis in breast cancer, few focus on early-stage cases. This study explores MMP-11 as an early prognostic marker in hormone-positive breast cancers.
    Methods: In this retrospective study, 228 women with early hormone-positive invasive ductal carcinoma, treated surgically between 2011 and 2016, were included. MMP-11 expression was measured by immunohistochemistry, and its association with clinical and MRI data was analyzed.
    Results: Among the patients (aged 31-89, median 60, with average tumor size of 15.7 mm), MMP-11 staining was observed in half of the cases. This positivity correlated with higher uPA levels and tumor grade but not with nodal status or size. Furthermore, MMP-11 positivity showed specific associations with MRI features. Over a follow-up period of 6.5 years, only 12 oncological events occurred. Disease-free survival was linked to Ki67 and MMP-11.
    Conclusion: MMP-11, primarily present in tumor-surrounding stromal cells, correlates with tumor grade and uPA levels. MMP-11 immunohistochemical score demonstrates a suggestive trend in association with disease-free survival, independent of Ki67 and other traditional prognostic factors. This highlights the potential of MMP-11 as a valuable marker in managing early hormone-positive breast cancer.
    MeSH term(s) Humans ; Female ; Disease-Free Survival ; Breast Neoplasms/diagnostic imaging ; Ki-67 Antigen ; Matrix Metalloproteinase 11 ; Retrospective Studies ; Magnetic Resonance Imaging ; Hormones
    Chemical Substances Ki-67 Antigen ; Matrix Metalloproteinase 11 (EC 3.4.24.-) ; Hormones
    Language English
    Publishing date 2024-03-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041352-X
    ISSN 1471-2407 ; 1471-2407
    ISSN (online) 1471-2407
    ISSN 1471-2407
    DOI 10.1186/s12885-024-11998-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Fast Ultrasound Scanning is a Rapid, Sensitive, Precise and Cost-Effective Method to Monitor Tumor Grafts in Mice.

    Molière, Sébastien / Martinet, Arthur / Jaulin, Amélie / Lodi, Massimo / Chamaraux-Tran, Thien-Nga / Alpy, Fabien / Bierry, Guillaume / Tomasetto, Catherine

    Journal of mammary gland biology and neoplasia

    2024  Volume 29, Issue 1, Page(s) 2

    Abstract: In preclinical studies, accurate monitoring of tumor dynamics is crucial for understanding cancer biology and evaluating therapeutic interventions. Traditional methods like caliper measurements and bioluminescence imaging (BLI) have limitations, ... ...

    Abstract In preclinical studies, accurate monitoring of tumor dynamics is crucial for understanding cancer biology and evaluating therapeutic interventions. Traditional methods like caliper measurements and bioluminescence imaging (BLI) have limitations, prompting the need for improved imaging techniques. This study introduces a fast-scan high-frequency ultrasound (HFUS) protocol for the longitudinal assessment of syngeneic breast tumor grafts in mice, comparing its performance with caliper, BLI measurements and with histological analysis. The E0771 mammary gland tumor cell line, engineered to express luciferase, was orthotopically grafted into immunocompetent C57BL/6 mice. Tumor growth was monitored longitudinally at multiple timepoints using caliper measurement, HFUS, and BLI, with the latter two modalities assessed against histopathological standards post-euthanasia. The HFUS protocol was designed for rapid, anesthesia-free scanning, focusing on volume estimation, echogenicity, and necrosis visualization. All mice developed tumors, only 20.6% were palpable at day 4. HFUS detected tumors as small as 2.2 mm in average diameter from day 4 post-implantation, with an average scanning duration of 47 s per mouse. It provided a more accurate volume assessment than caliper, with a lower average bias relative to reference tumor volume. HFUS also revealed tumor necrosis, correlating strongly with BLI in terms of tumor volume and cellularity. Notable discrepancies between HFUS and BLI growth rates were attributed to immune cell infiltration. The fast HFUS protocol enables precise and efficient tumor assessment in preclinical studies, offering significant advantages over traditional methods in terms of speed, accuracy, and animal welfare, aligning with the 3R principle in animal research.
    MeSH term(s) Animals ; Mice ; Mice, Inbred C57BL ; Cost-Benefit Analysis ; Ultrasonography ; Cell Line, Tumor ; Mammary Neoplasms, Animal ; Necrosis
    Language English
    Publishing date 2024-01-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1327345-0
    ISSN 1573-7039 ; 1083-3021
    ISSN (online) 1573-7039
    ISSN 1083-3021
    DOI 10.1007/s10911-024-09555-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Impact of a reduced iodine load with deep learning reconstruction on abdominal MDCT.

    Ludes, Gaspard / Ohana, Mickael / Labani, Aissam / Meyer, Nicolas / Moliére, Sébastien / Roy, Catherine

    Medicine

    2023  Volume 102, Issue 35, Page(s) e34579

    Abstract: To evaluate the impact of a reduced iodine load using deep learning reconstruction (DLR) on the hepatic parenchyma compared to conventional iterative reconstruction (hybrid IR) and its consequence on the radiation dose and image quality. This ... ...

    Abstract To evaluate the impact of a reduced iodine load using deep learning reconstruction (DLR) on the hepatic parenchyma compared to conventional iterative reconstruction (hybrid IR) and its consequence on the radiation dose and image quality. This retrospective monocentric intraindividual comparison study included 66 patients explored at the portal phase using different multidetector computed tomography parameters: Group A, hybrid IR algorithm (hybrid IR) and a nonionic low-osmolality contrast agent (350 mgI/mL); Group B, DLR algorithm (DLR) and a nonionic iso-osmolality contrast agent (270 mgI/mL). We recorded the attenuation of the liver parenchyma, image quality, and radiation dose parameters. The mean hounsfield units (HU) value of the liver parenchyma was significantly lower in group B, at 105.9 ± 10.9 HU versus 118.5 ± 14.6 HU in group A. However, the 90%IC of mean liver attenuation in the group B (DLR) was between 100.8 HU and 109.3 HU. The signal-to-noise ratio of the liver parenchyma was significantly higher on DLR images, increasing by 56%. However, for both the contrast-to-noise ratio (CNR) and CNR liver/PV no statistical difference was found, even if the CNR liver/PV ratio was slightly higher for group A. The mean dose-length product and computed tomography dose index volume values were significantly lower with DLR, corresponding to a radiation dose reduction of 36% for the DLR. Using a DLR algorithm for abdominal multidetector computed tomography with a low iodine load can provide sufficient enhancement of the liver parenchyma up to 100 HU in addition to the advantages of a higher image quality, a better signal-to-noise ratio and a lower radiation dose.
    MeSH term(s) Humans ; Multidetector Computed Tomography ; Contrast Media ; Deep Learning ; Retrospective Studies ; Iodine
    Chemical Substances Contrast Media ; Iodine (9679TC07X4)
    Language English
    Publishing date 2023-09-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80184-7
    ISSN 1536-5964 ; 0025-7974
    ISSN (online) 1536-5964
    ISSN 0025-7974
    DOI 10.1097/MD.0000000000034579
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Actualisation des indications chirurgicales et des indicateurs de qualité et sécurité des soins dans la prise en charge des carcinomes mammaires invasifs.

    Mathelin, Carole / Brousse, Susie / Schmitt, Martin / Taris, Nicolas / Uzan, Catherine / Molière, Sébastien / Vaysse, Charlotte

    Gynecologie, obstetrique, fertilite & senologie

    2023  Volume 52, Issue 3, Page(s) 125–131

    Abstract: Objectives: Breast surgery is the cornerstone of breast cancer treatment. Its indications and procedures are constantly evolving. To update best practices, four questions were submitted to the Senology Commission (SC) of the Collège national des ... ...

    Title translation Updated surgical indications and quality and safety indicators in the management of infiltrative breast carcinoma.
    Abstract Objectives: Breast surgery is the cornerstone of breast cancer treatment. Its indications and procedures are constantly evolving. To update best practices, four questions were submitted to the Senology Commission (SC) of the Collège national des gynécologues et obstétriciens français (CNGOF), covering the indications and modalities of tumor surgery: (1) initially, (2) following neoadjuvant systemic treatment, (3) in case of local recurrence, and (4) the quality and safety of care indicators applicable to this surgery.
    Methods: The CNGOF SC essentially based its responses on the clinical practice recommendations and guidelines of the French Cancer Institute concerning invasive carcinomas of the breast. Exclusion criteria were carcinoma in situ, sarcoma and axillary surgery.
    Results: To define the type of breast surgery, knowledge of four parameters is essential: the patient's level of risk, the presence of metastases, the size of the breast tumor and its focality (assessed by the clinical/mammography/ultrasound tripod). (1) In the case of initial management, the 6 indications for mastectomy are patient choice (particularly in case of high risk), contraindication to radiotherapy, inflammatory cancer (T4d), surgery with positive margins (after several surgical intervention), surgery that cannot be performed as a monobloc in the case of tumors with multiple foci, and poor expected aesthetic results. All other situations should be treated conservatively. (2) The same criteria apply after neoadjuvant systemic treatment, with conservative treatment still possible whatever the size (excluding carcinomatous mastitis) and focality of the initial tumor. (3) In case of local recurrence, total mastectomy is the reference treatment, with a second conservative treatment reserved for patients with no risk factors for a second recurrence, and no poor prognostic factors, after validation in a multidisciplinary meeting. (4) Four quality and safety indicators apply to breast surgery: it must be performed after obtaining a histological diagnosis, within less than 6 weeks of mammography, in a single surgery in over 80% of cases, and followed by local radiotherapy in the case of conservative treatment.
    Conclusion: The indications and modalities of breast surgery are evolving rapidly. To improve aesthetic results, oncoplastic techniques, immediate breast reconstruction, and preservation of the skin or nipple-areolar complex need to be further developed and evaluated in the long-term. These developments must necessarily be accompanied in France by a training policy for breast surgeons.
    MeSH term(s) Female ; Humans ; Axilla ; Breast ; Breast Neoplasms/surgery ; Mammography ; Mastectomy
    Language French
    Publishing date 2023-12-18
    Publishing country France
    Document type English Abstract ; Journal Article ; Practice Guideline
    ZDB-ID 2887456-0
    ISSN 2468-7189
    ISSN (online) 2468-7189
    DOI 10.1016/j.gofs.2023.12.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: COVID-19 in Post-Operative Patients: Imaging Findings.

    Moliere, Sebastien / Veillon, Francis

    Surgical infections

    2020  Volume 21, Issue 5, Page(s) 416–421

    Abstract: Background: ...

    Abstract Background:
    MeSH term(s) Adult ; Aged ; Betacoronavirus/isolation & purification ; COVID-19 ; Coronavirus Infections/diagnosis ; Coronavirus Infections/pathology ; Female ; Humans ; Lung/diagnostic imaging ; Lung/pathology ; Male ; Middle Aged ; Pandemics ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/pathology ; Postoperative Complications/diagnosis ; Postoperative Complications/pathology ; Prevalence ; Radiography, Thoracic ; Reverse Transcriptase Polymerase Chain Reaction ; SARS-CoV-2 ; Survival Analysis ; Tomography, X-Ray Computed
    Keywords covid19
    Language English
    Publishing date 2020-05-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1440120-4
    ISSN 1557-8674 ; 1096-2964
    ISSN (online) 1557-8674
    ISSN 1096-2964
    DOI 10.1089/sur.2020.169
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