Titre : Chimérisme

Chimérisme : Questions médicales fréquentes

Termes MeSH sélectionnés :

Neoplasm Recurrence, Local
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"datePublished": "2025-05-01", "inLanguage": "fr", "hasPart": [ { "@type": "MedicalWebPage", "name": "Diagnostic", "headline": "Diagnostic sur Chimérisme", "description": "Comment diagnostiquer le chimérisme ?\nQuels tests sont utilisés pour le chimérisme ?\nLe chimérisme peut-il être détecté par échographie ?\nQuels signes cliniques peuvent indiquer un chimérisme ?\nLe chimérisme est-il héréditaire ?", "url": "https://questionsmedicales.fr/mesh/D046528?mesh_terms=Neoplasm+Recurrence,+Local&page=2#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Chimérisme", "description": "Quels sont les symptômes du chimérisme ?\nLe chimérisme cause-t-il des douleurs ?\nPeut-on avoir des symptômes sans chimérisme ?\nLe chimérisme affecte-t-il la croissance ?\nY a-t-il des symptômes spécifiques au chimérisme ?", "url": "https://questionsmedicales.fr/mesh/D046528?mesh_terms=Neoplasm+Recurrence,+Local&page=2#section-symptômes" }, { "@type": 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"name": "Complications", "headline": "Complications sur Chimérisme", "description": "Quelles complications peuvent survenir avec le chimérisme ?\nLe chimérisme peut-il causer des cancers ?\nComment gérer les complications du chimérisme ?\nLe chimérisme affecte-t-il le système immunitaire ?\nY a-t-il des risques de rejet avec le chimérisme ?", "url": "https://questionsmedicales.fr/mesh/D046528?mesh_terms=Neoplasm+Recurrence,+Local&page=2#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Chimérisme", "description": "Quels sont les facteurs de risque du chimérisme ?\nLe chimérisme est-il plus fréquent chez certaines populations ?\nLes greffes augmentent-elles le risque de chimérisme ?\nLes antécédents médicaux influencent-ils le chimérisme ?\nLe chimérisme est-il lié à des facteurs environnementaux ?", "url": "https://questionsmedicales.fr/mesh/D046528?mesh_terms=Neoplasm+Recurrence,+Local&page=2#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer le chimérisme ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Le diagnostic se fait par analyse génétique, notamment par PCR ou séquençage." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour le chimérisme ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Les tests incluent l'analyse de l'ADN, les tests de compatibilité tissulaire et les marqueurs génétiques." } }, { "@type": "Question", "name": "Le chimérisme peut-il être détecté par échographie ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Non, l'échographie ne peut pas détecter le chimérisme, seul un test génétique est fiable." } }, { "@type": "Question", "name": "Quels signes cliniques peuvent indiquer un chimérisme ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Des signes cliniques peuvent inclure des anomalies immunitaires ou des différences phénotypiques." } }, { "@type": "Question", "name": "Le chimérisme est-il héréditaire ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Non, le chimérisme n'est généralement pas héréditaire, il résulte d'événements embryonnaires." } }, { "@type": "Question", "name": "Quels sont les symptômes du chimérisme ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes varient, mais peuvent inclure des anomalies cutanées ou des troubles immunitaires." } }, { "@type": "Question", "name": "Le chimérisme cause-t-il des douleurs ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Le chimérisme en soi ne cause pas de douleurs, mais des complications peuvent en entraîner." } }, { "@type": "Question", "name": "Peut-on avoir des symptômes sans chimérisme ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Oui, de nombreux symptômes peuvent être causés par d'autres conditions médicales." } }, { "@type": "Question", "name": "Le chimérisme affecte-t-il la croissance ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Il peut affecter la croissance si des anomalies génétiques ou hormonales sont présentes." } }, { "@type": "Question", "name": "Y a-t-il des symptômes spécifiques au chimérisme ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Des différences de pigmentation ou des anomalies immunitaires peuvent être spécifiques." } }, { "@type": "Question", "name": "Peut-on prévenir le chimérisme ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Le chimérisme ne peut pas être prévenu car il résulte d'événements embryonnaires." } }, { "@type": "Question", "name": "Y a-t-il des facteurs de risque pour le chimérisme ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs de risque incluent des grossesses multiples ou des transfusions sanguines." } }, { "@type": "Question", "name": "Les tests prénataux peuvent-ils détecter le chimérisme ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Les tests prénataux standard ne détectent pas le chimérisme, des tests génétiques spécifiques sont nécessaires." } }, { "@type": "Question", "name": "Le chimérisme est-il lié à des pratiques médicales ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certaines pratiques comme les greffes peuvent augmenter le risque de chimérisme." } }, { "@type": "Question", "name": "Les femmes enceintes doivent-elles se méfier du chimérisme ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Il n'y a pas de mesures préventives spécifiques pour les femmes enceintes concernant le chimérisme." } }, { "@type": "Question", "name": "Comment traiter le chimérisme ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Le traitement dépend des symptômes et peut inclure des thérapies immunosuppressives." } }, { "@type": "Question", "name": "Le chimérisme nécessite-t-il une intervention chirurgicale ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Rarement, sauf si des complications graves nécessitent une intervention spécifique." } }, { "@type": "Question", "name": "Les médicaments peuvent-ils aider au chimérisme ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des médicaments immunosuppresseurs peuvent être prescrits pour gérer les symptômes." } }, { "@type": "Question", "name": "Y a-t-il des traitements naturels pour le chimérisme ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Il n'existe pas de traitements naturels prouvés pour le chimérisme, consultez un médecin." } }, { "@type": "Question", "name": "Le suivi médical est-il nécessaire pour le chimérisme ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Oui, un suivi régulier est essentiel pour surveiller les complications potentielles." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec le chimérisme ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les complications incluent des troubles immunitaires, des rejets de greffe ou des cancers." } }, { "@type": "Question", "name": "Le chimérisme peut-il causer des cancers ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certaines formes de chimérisme peuvent augmenter le risque de cancers spécifiques." } }, { "@type": "Question", "name": "Comment gérer les complications du chimérisme ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "La gestion implique un suivi médical régulier et des traitements adaptés aux symptômes." } }, { "@type": "Question", "name": "Le chimérisme affecte-t-il le système immunitaire ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le chimérisme peut entraîner des dysfonctionnements du système immunitaire." } }, { "@type": "Question", "name": "Y a-t-il des risques de rejet avec le chimérisme ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le rejet peut survenir si des cellules étrangères sont reconnues par le système immunitaire." } }, { "@type": "Question", "name": "Quels sont les facteurs de risque du chimérisme ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les grossesses multiples et les transfusions sanguines sont des facteurs de risque connus." } }, { "@type": "Question", "name": "Le chimérisme est-il plus fréquent chez certaines populations ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Il n'y a pas de données précises, mais les grossesses multiples peuvent augmenter le risque." } }, { "@type": "Question", "name": "Les greffes augmentent-elles le risque de chimérisme ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les greffes d'organes peuvent introduire des cellules étrangères, entraînant un chimérisme." } }, { "@type": "Question", "name": "Les antécédents médicaux influencent-ils le chimérisme ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des antécédents de transfusions ou de greffes peuvent augmenter le risque de chimérisme." } }, { "@type": "Question", "name": "Le chimérisme est-il lié à des facteurs environnementaux ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Actuellement, il n'existe pas de preuves solides liant le chimérisme à des facteurs environnementaux." } } ] } ] }

Sources (10000 au total)

Prognostic Factors for Local Recurrence after Cryoablation of Desmoid Tumors.

To determine the risk factors for local of adult patients treated for desmoid tumors by cryoablation.... Eighty-four patients treated for nonabdominopelvic desmoid tumors by cryoablation from July 2012 to July 2020 were included in a retrospective study. The population was composed of 64 women (76.19%) a... Local relapse was found in 19 (22.62%) of 84 patients. The 12-, 24-, and 36-month progression-free survival rates were 89% (95% confidence interval [CI], 79-94), 74% (95% CI, 60-83), and 68% (95% CI, ... The local recurrence of desmoid tumors after cryoablation depends on a number of prognostic factors, in particular, a non-abdominal wall location of the tumor and previous local treatment such as surg...

Utility of vaginal vault cytology in the local recurrence of cervical cancer.

In Japan, 8000 women were newly diagnosed with cervical cancer in 2018. The healthcare insurance policy in Japan allows physicians to utilize vaginal volt cytology tests and serum biomarker measuremen... From January 2009 to December 2015, the medical records of patients with recurrence who were initially diagnosed with International Federation of Gynecology and Obstetrics stage I-III cervical cancer ... In the study period, 84 of the 981 patients experienced recurrence, and 88.1% had an asymptomatic recurrence. The disease-free interval was not related to the recurrence site. In univariate analysis, ... In this retrospective study, routine imaging analysis and serum biomarker measurement did not contribute to patient prognosis after recurrence. In contrast, vaginal vault cytology can improve survival...

Does Completeness of the Mesorectal Excision Still Correlate With Local Recurrence?

Total mesorectal excision is the standard surgical procedure for rectal cancer treatment. Several studies have shown a close correlation between the prognosis of patients with rectal cancer and the co... To assess the correlation between macroscopic assessment of mesorectal excision and long-term oncological outcomes.... Retrospective analysis of an Institutional Review Board-approved database.... Tertiary referral center.... Patients with rectal cancer who were operated on between March 2016 and October 2019 were classified into 3 groups based on the mesorectal specimen quality: complete, near complete, and incomplete. On... Relationship between total mesorectal excision and local and distant recurrence rates in patients with rectal cancer.... A total of 124 patients (35.5% females) were included in the analysis, with a mean age of 58.1 (SD 12) years and a mean BMI of 26.4 (SD 4.59) kg/m². Neoadjuvant chemoradiation was administered to 71% ... Retrospective, single-center study with relatively short follow-up.... In the era of a multidisciplinary approach and extensive use of neoadjuvant therapy, macroscopic completeness of total mesorectal excision may not be as valuable a prognosticator as in the past. Large... ANTECEDENTES:La escisión total desl mesorrecto es el estándar de oro para el tratamiento del cáncer de recto. Varios estudios han demostrado una estrecha correlación entre el pronóstico de los pacient...

Symptoms and diagnosis of local recurrence after rectal cancer treatment.

The prognosis for local recurrence after rectal cancer treatment is poor. A minority of patients are eligible for surgery with curative intent, which could possibly be improved by earlier detection. T... In a population-based retrospective cohort (cohort A), all patients who had undergone resection surgery for rectal cancer in the region of Västra Götaland, Sweden, diagnosed 2010-2014, were identified... Cohort A consisted of 1208 patients, out of whom 78 (6%) were diagnosed with local recurrence. Forty-six patients were diagnosed between scheduled follow-up visits. Fifty-eight patients were symptomat... A majority of patients with local recurrence were diagnosed outside of the scheduled follow-up. Most of the patients were symptomatic at diagnosis. Symptoms were common in patients after rectal cancer...

Clinicopathological Characteristics of Anastomotic Recurrence After Curative Resection for Colorectal Cancer: Comparison With Nonanastomotic Local Recurrences.

Anastomotic recurrence is thought to be caused by implantation of tumor cells to the anastomotic line; however, its risk factors and prognostic significance remain unclear.... This study aimed to clarify the risk factors for anastomotic recurrence in colorectal cancer and assess the prognosis in comparison to nonanastomotic local recurrence.... A single-center retrospective observational study.... The medical records of the study participants were retrospectively collected from the Department of Surgical Oncology at the University of Tokyo Hospital database.... This study included 1584 patients with colorectal cancer who underwent surgical resection between January 2005 and December 2017. We focused on 15 patients who had an anastomotic recurrence.... The main outcome measures were the risk factors of anastomotic recurrence at the primary resection and prognosis data in comparison to that of nonanastomotic local recurrence.... There were 15 patients (0.95%) with anastomotic recurrence and 35 (2.21%) with nonanastomotic local recurrence. Univariate analysis revealed that lymph node metastasis and advanced T stage are the ris... The small number of patients with anastomotic recurrence is a major limitation of this study. Additionally, the retrospective study design may have increased the risk of selection bias.... Lymph node metastasis and advanced T stage were associated with anastomotic recurrence. The prognosis of patients with anastomotic recurrence was similar to that with resected nonanastomotic local rec... ANTECEDENTES:Se cree que la recurrencia anastomótica es causada por la implantación de células tumorales en la línea anastomótica; sin embargo, los factores de riesgo asociados y el significado en cua...

Value of 99m Tc-MIBI SPECT/CT in the localization of recurrent lesions in patients with suspected recurrent parathyroid carcinoma.

Accurate preoperative localization of tumor-bearing lesions is crucial for the successful surgical management of suspected recurrent parathyroid carcinoma. The purpose of this study was to evaluate th... Twenty-nine patients with suspected recurrent parathyroid carcinoma were included in this retrospective cohort study. Patients underwent preoperative 99m Tc-MIBI SPECT/CT and cervical ultrasound. The ... Of the 29 patients, histopathological results revealed 48 metastases/recurrent lesions in 26 patients. The diagnostic value of 99m Tc-MIBI SPECT/CT, cervical ultrasound, and the two modalities in comb... The combined use of 99m Tc-MIBI SPECT/CT and cervical ultrasound is the most efficient strategy in the diagnosis of parathyroid carcinoma relapse, whereas 99m Tc-MIBI SPECT/CT is the preferred method ...

Mohs microsurgery for localized penile carcinoma: 10 year retrospective review of local recurrence rates and surgical complications.

To investigate the local recurrence rates of men treated with Mohs microsurgery (MMS) for penile carcinoma. The secondary outcome was surgical complications from the MMS procedure or the subsequent re... All patients from 2010 to 2020 with penile carcinoma at our institution were seen in a multidisciplinary setting. Patients with Ta, Tis, T1, and T2 disease were considered candidates for MMS. Clinical... A total of 43 patients met inclusion criteria. The median age at diagnosis was 64 years. Stage distribution was Ta in 4.7%, Tis in 58.1%, T1a in 14.0%, T1b in 7.0%, and T2 in 16.3%. No patients had a ... MMS provides effective local control for Ta, Tis, and T1 penile cancer with an overall local recurrence rate of 2% and an acceptable complication rate. A multi-disciplinary team involving urologic onc...

Margin Status and Local Recurrence in Phyllodes Tumours of the Breast: A Canadian Series.

Phyllodes tumours of the breast are rare fibroepithelial neoplasms with a propensity for recurrence. While surgical excision remains the standard of care, the optimal margin width is an area of active... We conducted a retrospective, cohort study of patients with phyllodes tumours treated at our institution between 2003 and 2021. Demographic, histopathological, and recurrence data were captured; malig... Of 187 patients with phyllodes tumours, 82.9% (n = 155) were classified as benign while 17.1% (n = 32) were borderline. Initial surgical margins were positive in 26.2% (n = 49), < 2 mm in 50.8% (n = 9... In this large cohort of benign and borderline phyllodes tumours, positive resection margins and not margin width at the initial surgery were associated with a increased recurrence. Individualization o...

Locally recurrent rectal cancer and distant metastases: is there still a chance ofcure?

Patients with locally recurrent rectal cancer (LRRC) generally have poor prognosis, especially those who have (a history of) distant metastases. The aim of this study was to investigate the impact of ... Consecutive patients with surgically treated LRRC between 2005 and 2019 in two tertiary referral hospitals were retrospectively analysed. Oncological survival of patients without distant metastases we... A total of 535 LRRC patients were analysed, of whom 398 (74%) had no (history of) metastases, 22 (4%) had synchronous metastases with the primary tumour, 44 (8%) had metachronous metastases, and 71 (1... LRRC patients with synchronous distant metastases undergoing curative surgery have relatively poor prognosis. However, LRRC patients with a history of distant metastases diagnosed nearby the primary t...