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  1. Article ; Online: Pancreatic metastasis from small bowel neuroendocrine tumor.

    Addeo, Pietro / Fattori, Antonin / Imperiale, Alessio / Bachellier, Philippe

    Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver

    2023  Volume 55, Issue 10, Page(s) 1434–1435

    MeSH term(s) Humans ; Neuroendocrine Tumors/pathology ; Pancreatic Neoplasms/pathology ; Intestinal Neoplasms/pathology ; Stomach Neoplasms
    Language English
    Publishing date 2023-07-21
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1459373-7
    ISSN 1878-3562 ; 1125-8055
    ISSN (online) 1878-3562
    ISSN 1125-8055
    DOI 10.1016/j.dld.2023.07.019
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Preferentially expressed Antigen in MElanoma immunohistochemistry as an adjunct for evaluating ambiguous melanocytic proliferation.

    Fattori, Antonin / de la Fouchardière, Arnaud / Cribier, Bernard / Mitcov, Mona

    Human pathology

    2022  Volume 121, Page(s) 19–28

    Abstract: The histopathological assessment of diagnostically ambiguous melanocytic proliferation remains one of the biggest challenges in the dermatopathology field. Preferentially expressed Antigen in MElanoma (PRAME) immunostaining has been shown highly specific ...

    Abstract The histopathological assessment of diagnostically ambiguous melanocytic proliferation remains one of the biggest challenges in the dermatopathology field. Preferentially expressed Antigen in MElanoma (PRAME) immunostaining has been shown highly specific for distinguishing unequivocal malignant melanocytic proliferation from benign ones. Knowledge on its utility for evaluating ambiguous melanocytic neoplasms remains limited. We retrieved in our institutional database all cases of diagnostically ambiguous melanocytic neoplasms from January 2016 to January 2021. Each case was subclassified into "favor benign" or "favor malignant" neoplasm using all collected data. Immunohistochemical expression of PRAME was assessed and correlated with the final subclassification. Using a previously proposed scoring system, diffuse immunopositivity (>75% of tumor cells) was considered positive. Furthermore, for ambiguous melanocytic proliferation occurring on a pre-existing nevus, the staining was considered positive if more than 75% of the morphologically atypical neoplastic cells were labeled, excluding morphologically unambiguous benign nevocytes. Fifty-five cases of ambiguous melanocytic proliferation were examined. Thirty-one cases were finally subclassified as "favor malignant" neoplasms and 24 as "favor benign" neoplasms. Thirty-one tumors showed immunopositivity for PRAME, representing, respectively, 8.3% and 93.5% of "favor benign" and "favor malignant" neoplasms. The specificity and sensitivity of PRAME immunohistochemistry for benign/malignant distinction were, respectively, 91.7% and 93.5%.PRAME IHC shows high sensitivity and specificity for distinguishing malignant challenging melanocytic proliferations from benign ones and could be used as an everyday tool. However, PRAME immunoreactivity should be interpreted cautiously, knowing that rare benign melanocytic neoplasms could show diffuse positivity.
    MeSH term(s) Antigens, Neoplasm/metabolism ; Brain Neoplasms ; Cell Proliferation ; Humans ; Immunohistochemistry ; Melanoma/pathology ; Skin Neoplasms/pathology
    Chemical Substances Antigens, Neoplasm
    Language English
    Publishing date 2022-01-04
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 207657-3
    ISSN 1532-8392 ; 0046-8177
    ISSN (online) 1532-8392
    ISSN 0046-8177
    DOI 10.1016/j.humpath.2021.12.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Coxal giant cell-rich tumour harbouring an NUTM1 gene fusion: a new molecular subtype of giant cell tumour of bone?

    Fattori, Antonin / Reita, Damien / Brinkert, David / Willaume, Thibault / Gantzer, Justine / Karanian, Marie / Lhermitte, Benoit / Wolf, Thibaut / De Pinieux, Gonzague / Weingertner, Noëlle

    Histopathology

    2024  Volume 84, Issue 6, Page(s) 1072–1075

    MeSH term(s) Humans ; Bone Neoplasms/genetics ; Gene Fusion ; Giant Cell Tumor of Bone/genetics ; Giant Cells ; Neoplasm Proteins/genetics ; Oncogene Proteins, Fusion/genetics ; Transcription Factors/genetics
    Chemical Substances Neoplasm Proteins ; Oncogene Proteins, Fusion ; Transcription Factors
    Language English
    Publishing date 2024-01-16
    Publishing country England
    Document type Case Reports ; Letter
    ZDB-ID 131914-0
    ISSN 1365-2559 ; 0309-0167
    ISSN (online) 1365-2559
    ISSN 0309-0167
    DOI 10.1111/his.15139
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Une intoxication de diagnostic histologique.

    Fattori, Antonin / Arfeuille, Gaelle / Parratte, Timothée / Gantzer, Justine / Olagne, Jérôme / Lannes, Béatrice / Lhermitte, Benoît

    Annales de pathologie

    2021  Volume 41, Issue 6, Page(s) 549–553

    Abstract: Ethylene glycol poisoning is relatively rare, with around a hundred cases reported each year in France. Its diagnosis is often challenging and delayed because of a several hours' free interval between ingestion of the toxic and the onset of the first ... ...

    Title translation Histopathological diagnosis of an intoxication.
    Abstract Ethylene glycol poisoning is relatively rare, with around a hundred cases reported each year in France. Its diagnosis is often challenging and delayed because of a several hours' free interval between ingestion of the toxic and the onset of the first symptoms. Ethylene glycol is a colorless and odorless liquid primarily found in automotive coolants, whose toxicity is linked to its hepatic metabolites. Histologically, ethylene glycol poisoning is characterized by abundant tissular deposits of calcium oxalate crystals. Under polarized light, these crystals appear birefringent and iridescent. Their microscopic appearance and their distribution are pathognomonic of oxalosis. Due to its frequent misleading presentation, the diagnosis of ethylene glycol poisoning is sometimes only made after an autopsy. Hereafter, we report the case of a 59-year-old man diagnosed with ethylene glycol intoxication after a post-mortem histopathological examination of organs.
    MeSH term(s) Autopsy ; Calcium Oxalate ; Ethylene Glycol ; France ; Humans ; Male ; Middle Aged
    Chemical Substances Calcium Oxalate (2612HC57YE) ; Ethylene Glycol (FC72KVT52F)
    Language French
    Publishing date 2021-09-03
    Publishing country France
    Document type Case Reports ; Journal Article
    ZDB-ID 225720-8
    ISSN 0242-6498
    ISSN 0242-6498
    DOI 10.1016/j.annpat.2021.08.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Prognostic significance of residual lymphovascular invasion after resection of locally advanced and borderline resectable pancreatic adenocarcinomas treated by neoadjuvant chemotherapy.

    Addeo, Pietro / Fattori, Antonin / Grunder, Caroline / Dufour, Patrick / Averous, Gerlinde / Bachellier, Philippe

    HPB : the official journal of the International Hepato Pancreato Biliary Association

    2021  Volume 23, Issue 8, Page(s) 1285–1295

    Abstract: Background: The current study aimed to identify histological prognostic factors after resection of locally advanced (LA) and borderline (BL) pancreatic adenocarcinomas treated by neoadjuvant chemotherapy (NC).: Methods: A retrospective review was ... ...

    Abstract Background: The current study aimed to identify histological prognostic factors after resection of locally advanced (LA) and borderline (BL) pancreatic adenocarcinomas treated by neoadjuvant chemotherapy (NC).
    Methods: A retrospective review was performed of patients with LA and BL adenocarcinomas operated after NC between January 2010 and April 2018. Prognostic factors for survival were assessed by multivariate Cox analysis.
    Results: Of the 84 patients, 29 had BL and 55 had LA pancreatic adenocarcinomas. Seventy-five patients underwent synchronous venous resection and 57 underwent arterial resection. The median overall survival from surgery was 21.10 months (BL 23-LA 21) (95% CI: 14.8-30.3) with 1-, 3-, and 5-year overall survival rates of 73%, 32%, and 20%, respectively. Multivariate analysis identified lymphovascular invasion (LVI) as an independent prognostic factor for overall survival (HR: 2.32, 95% CI: 1.28-4.22; p = 0.004). Patients without LVI (n = 37) had superior median overall and 5-year survival rates (31.0 months [40 from diagnosis]; 39%) compared to patients with LVI (n = 47; 14.4 months [22 from diagnosis]; 7%). The absence of residual LVI was associated with major pathologic response rates (p < 0.05).
    Conclusion: The persistence of LVI at pathology after resection of LA and BL treated by neoadjuvant chemotherapy predicts poor response and limited long-term survival.
    MeSH term(s) Adenocarcinoma/drug therapy ; Adenocarcinoma/surgery ; Antineoplastic Combined Chemotherapy Protocols/adverse effects ; Humans ; Neoadjuvant Therapy/adverse effects ; Pancreatic Neoplasms/drug therapy ; Pancreatic Neoplasms/surgery ; Prognosis ; Retrospective Studies ; Survival Rate
    Language English
    Publishing date 2021-01-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 2131251-5
    ISSN 1477-2574 ; 1365-182X
    ISSN (online) 1477-2574
    ISSN 1365-182X
    DOI 10.1016/j.hpb.2021.01.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Cutaneous manifestations in patients with coronavirus disease 2019: clinical and histological findings.

    Fattori, Antonin / Cribier, Bernard / Chenard, Marie-Pierre / Mitcov, Mona / Mayeur, Sylvain / Weingertner, Noëlle

    Human pathology

    2020  Volume 107, Page(s) 39–45

    Abstract: The clinical spectrum of coronavirus disease 2019 is getting wider with the exponential increase of patients worldwide. Initially described with flu-like symptoms, variable cutaneous manifestations have been reported, with only few histopathological ... ...

    Abstract The clinical spectrum of coronavirus disease 2019 is getting wider with the exponential increase of patients worldwide. Initially described with flu-like symptoms, variable cutaneous manifestations have been reported, with only few histopathological descriptions. Detection of the virus in cutaneous samples has been assessed in very few cases until now, and the causative role of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has not been proven for every type of cutaneous manifestations yet. We aimed to describe histological features of cutaneous eruptions occurring concomitantly to SARS-CoV-2 infection and assess by immunochemistry and in situ hybridization using RNAscope validation techniques the presence of the virus in skin lesions. We retrieved all skin biopsies received in the departments of pathology and dermatopathology, University Hospital of Strasbourg, performed in hospitalized SARS-CoV-2-infected patients presenting concomitant cutaneous manifestations since March 2020. In situ hybridization and immunostaining using a polyclonal SARS nucleocapsid protein antibody were performed on each sample. Skin biopsies from six patients presenting morbilliform eruption concomitant to SARS-CoV-2 infection were available for evaluation. All six samples showed varying degrees of spongiosis, perivascular inflammatory infiltrates of the dermis, and, for some of them, discrete interface dermatitis. In situ hybridization and immunohistochemistry were negative in all cutaneous samples. Morbilliform rash concomitant to SARS-CoV-2 infection is characterized by mild and unspecific histopathological features with no detectable viral RNA and protein and appears then not to be directly caused by the virus. Even if, at least for a few cases, the differential diagnosis with drug hypersensitivity reaction can be difficult, these cutaneous eruptions seem to rather correspond to paraviral rashes.
    MeSH term(s) COVID-19/complications ; Dermatitis/pathology ; Dermatitis/virology ; Female ; Humans ; Immunohistochemistry/methods ; Male ; RNA, Viral/genetics ; SARS-CoV-2/pathogenicity ; Skin/pathology ; Skin/virology ; Skin Diseases/pathology ; Skin Diseases/virology
    Chemical Substances RNA, Viral
    Keywords covid19
    Language English
    Publishing date 2020-11-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 207657-3
    ISSN 1532-8392 ; 0046-8177
    ISSN (online) 1532-8392
    ISSN 0046-8177
    DOI 10.1016/j.humpath.2020.10.011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Cutaneous manifestations in patients with COVID-19

    Fattori, Antonin / Cribier, Bernard / Chenard, Marie-Pierre / Mitcov, Mona / Mayeur, Sylvain / Weingertner, Noëlle

    Human Pathology ; ISSN 0046-8177

    clinical and histological findings

    2020  

    Keywords Pathology and Forensic Medicine ; covid19
    Language English
    Publisher Elsevier BV
    Publishing country us
    Document type Article ; Online
    DOI 10.1016/j.humpath.2020.10.011
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Mesenchymal-like Tumor Cells and Myofibroblastic Cancer-Associated Fibroblasts Are Associated with Progression and Immunotherapy Response of Clear Cell Renal Cell Carcinoma.

    Davidson, Guillaume / Helleux, Alexandra / Vano, Yann A / Lindner, Véronique / Fattori, Antonin / Cerciat, Marie / Elaidi, Reza T / Verkarre, Virginie / Sun, Cheng-Ming / Chevreau, Christine / Bennamoun, Mostefa / Lang, Hervé / Tricard, Thibault / Fridman, Wolf H / Sautes-Fridman, Catherine / Su, Xiaoping / Plassard, Damien / Keime, Celine / Thibault-Carpentier, Christelle /
    Barthelemy, Philippe / Oudard, Stéphane M / Davidson, Irwin / Malouf, Gabriel G

    Cancer research

    2023  Volume 83, Issue 17, Page(s) 2952–2969

    Abstract: Immune checkpoint inhibitors (ICI) represent the cornerstone for the treatment of patients with metastatic clear cell renal cell carcinoma (ccRCC). Despite a favorable response for a subset of patients, others experience primary progressive disease, ... ...

    Abstract Immune checkpoint inhibitors (ICI) represent the cornerstone for the treatment of patients with metastatic clear cell renal cell carcinoma (ccRCC). Despite a favorable response for a subset of patients, others experience primary progressive disease, highlighting the need to precisely understand the plasticity of cancer cells and their cross-talk with the microenvironment to better predict therapeutic response and personalize treatment. Single-cell RNA sequencing of ccRCC at different disease stages and normal adjacent tissue (NAT) from patients identified 46 cell populations, including 5 tumor subpopulations, characterized by distinct transcriptional signatures representing an epithelial-to-mesenchymal transition gradient and a novel inflamed state. Deconvolution of the tumor and microenvironment signatures in public data sets and data from the BIONIKK clinical trial (NCT02960906) revealed a strong correlation between mesenchymal-like ccRCC cells and myofibroblastic cancer-associated fibroblasts (myCAF), which are both enriched in metastases and correlate with poor patient survival. Spatial transcriptomics and multiplex immune staining uncovered the spatial proximity of mesenchymal-like ccRCC cells and myCAFs at the tumor-NAT interface. Moreover, enrichment in myCAFs was associated with primary resistance to ICI therapy in the BIONIKK clinical trial. These data highlight the epithelial-mesenchymal plasticity of ccRCC cancer cells and their relationship with myCAFs, a critical component of the microenvironment associated with poor outcome and ICI resistance.
    Significance: Single-cell and spatial transcriptomics reveal the proximity of mesenchymal tumor cells to myofibroblastic cancer-associated fibroblasts and their association with disease outcome and immune checkpoint inhibitor response in clear cell renal cell carcinoma.
    MeSH term(s) Humans ; Cancer-Associated Fibroblasts/pathology ; Carcinoma, Renal Cell/drug therapy ; Carcinoma, Renal Cell/genetics ; Gene Expression Profiling ; Immunotherapy ; Kidney Neoplasms/drug therapy ; Kidney Neoplasms/genetics ; Prognosis ; Tumor Microenvironment ; Clinical Trials as Topic
    Language English
    Publishing date 2023-06-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1432-1
    ISSN 1538-7445 ; 0008-5472
    ISSN (online) 1538-7445
    ISSN 0008-5472
    DOI 10.1158/0008-5472.CAN-22-3034
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Cutaneous manifestations in patients with COVID-19: clinical and histological findings

    Fattori, Antonin / Cribier, Bernard / Chenard, Marie-Pierre / Mitcov, Mona / Mayeur, Sylvain / Weingertner, Noëlle

    Hum. pathol

    Abstract: The clinical spectrum of COronaVIrus Disease-19 (COVID-19) is getting wider with the exponential increase of patients worldwide. Initially described with flu-like symptoms, variable cutaneous manifestations have been reported, with only few ... ...

    Abstract The clinical spectrum of COronaVIrus Disease-19 (COVID-19) is getting wider with the exponential increase of patients worldwide. Initially described with flu-like symptoms, variable cutaneous manifestations have been reported, with only few histopathological descriptions. Detection of the virus in cutaneous samples has been assessed in very few cases until now and the causative role of SARS-CoV-2 has not been proven for every type of cutaneous manifestations yet. We aimed to describe histological features of cutaneous eruptions occurring concomitantly to SARS-CoV-2 infection and assess by immunochemistry and in situ hybridization using RNA scope validated technics the presence of the virus in skin lesions. We retrieved all skin biopsies received in the departments of Pathology and Dermatopathology, University Hospital of Strasbourg, performed in hospitalized SARS-CoV-2 infected patients presenting concomitant cutaneous manifestations since March 2020. In situ hybridization and immunostaining using a polyclonal Sars nucleocapsid protein antibody were performed on each sample. Skin biopsies from six patients presenting morbilliform eruption concomitant to SARS-CoV-2 infection were available for evaluation. All six samples showed varying degrees of spongiosis, perivascular inflammatory infiltrates of the dermis, and for some of them, discrete interface dermatitis. In situ hybridization and immunohistochemistry were negative in all cutaneous samples. Morbilliform rash concomitant to SARS-CoV-2 infection is characterized by mild and unspecific histopathological features with no detectable viral RNA and protein and appears then not to be directly caused by the virus. Even if, at least for a few cases, the differential diagnosis with drug hypersensitivity reaction can be difficult, these cutaneous eruptions seem to rather correspond to paraviral rashes.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #908957
    Database COVID19

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  10. Article ; Online: A Nonsmoker Man in His 40s With a Diagnosis of Genetic-Related Idiopathic Pulmonary Fibrosis (Surfactant-Protein C Gene Mutation).

    Fattori, Antonin / Ohana, Mickael / Hirschi, Sandrine / Kessler, Romain / Santelmo, Nicola / Nathan, Nadia / Chenard, Marie-Pierre / Raymond, Stephane / Legendre, Marie / Calabrese, Fiorella

    Chest

    2019  Volume 155, Issue 4, Page(s) e91–e96

    Abstract: A nonsmoker man in his 40s underwent bilateral lung transplantation with a referral diagnosis of genetic-related idiopathic pulmonary fibrosis (IPF). The patient had no medical history in childhood and early adulthood, nor was there a family history of ... ...

    Abstract A nonsmoker man in his 40s underwent bilateral lung transplantation with a referral diagnosis of genetic-related idiopathic pulmonary fibrosis (IPF). The patient had no medical history in childhood and early adulthood, nor was there a family history of IPF. His nonsmoker father presented with lung cancer at 59 years of age. The patient was a professional brass instrument player; he had started playing at 9 years of age, and he was recently playing 3 to 4 h per day. He had a 7-year clinical history of chronic cough and shortness of breath. Bilateral fine crackles were present at clinical examination. There was no digital clubbing. Data had been collected since 2015: no clinical or immunologic signs of connective tissue disease were evident, including autoantibodies for myositis or anti-synthetase syndrome. Chest radiograph showed diffuse interstitial lung disease. Results of pulmonary function tests yielded a restrictive pattern with decreased FVC and decreased total lung capacity (69% and 47% of predicted, respectively). The FEV
    MeSH term(s) Adult ; Alveolitis, Extrinsic Allergic/diagnosis ; Alveolitis, Extrinsic Allergic/etiology ; Biopsy ; DNA/genetics ; DNA Mutational Analysis ; Diagnosis, Differential ; Humans ; Idiopathic Pulmonary Fibrosis/complications ; Idiopathic Pulmonary Fibrosis/diagnosis ; Idiopathic Pulmonary Fibrosis/genetics ; Lung/diagnostic imaging ; Male ; Mutation ; Non-Smokers ; Pulmonary Surfactant-Associated Protein C/genetics ; Pulmonary Surfactant-Associated Protein C/metabolism ; Radiography, Thoracic ; Respiratory Function Tests ; Tomography, X-Ray Computed
    Chemical Substances Pulmonary Surfactant-Associated Protein C ; SFTPC protein, human ; DNA (9007-49-2)
    Language English
    Publishing date 2019-04-06
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1032552-9
    ISSN 1931-3543 ; 0012-3692
    ISSN (online) 1931-3543
    ISSN 0012-3692
    DOI 10.1016/j.chest.2018.12.015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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