metachronous

Metachronous

Federal government websites often end in. The site is metachronous. The incidence of secondary primary malignancy SPM has been reported to range from 1. The highest occurrence rate of SPM, metachronous, of

The term metachronous is used in oncology to refer to two or more independent primary malignancies, when the second or third, etc. These may be in the same, or in different, organs. Articles: Gallbladder metastases Metachronous breast cancer Synchronous pathology. Please Note: You can also scroll through stacks with your mouse wheel or the keyboard arrow keys. Updating… Please wait.

Metachronous

Metrics details. The situation of patients developing multiple primary cancers is becoming more frequent and graver. This study investigated the risks of developing second primary cancers that are related to first primary cancers, and the interval times of synchronous and metachronous multiple primary cancers. A two-month period between first- and second- primary cancers was used to differentiate metachronous and synchronous multiple primary cancers. The combinations of subsequent cancers and relative risks RRs of having multiple primary cancers versus having single primary cancer for the top-ten first and second primary cancers were examined. The RR was adjusted for age of the first primary cancer. A survival analysis of the time to second-primary-cancer development was performed. Multiple primary cancers were found in 1. Most After adjustment for age at first diagnosis, head and neck cancers had the highest metachronous association with second esophageal cancers RR, Prostate cancer and second colorectal cancer also demonstrated a high metachronous association RR, 2. A strong synchronous association was found between uterine and ovarian cancers RR,

Digestive system malignancies were the most common

Federal government websites often end in. The site is secure. Aim of this study is to review our experience in the management of patients with synchronous and metachronous lesions, and reach conclusions regarding their optimal diagnosis, treatment and follow-up. Patients and methods: Between and , 12 patients seven men and five women, mean age The diagnosis lag for metachronous lesions ranged from 1.

Federal government websites often end in. The site is secure. Preview improvements coming to the PMC website in October Learn More or Try it out now. The incidence of secondary primary malignancy SPM has been reported to range from 1. The highest occurrence rate of SPM, of Genitourinary malignancies were reported to be the third-most-common SPM in several reports. However, the incidence of genitourinary malignancy as the first primary cancer associated with SPM has not been reported. Several risk factors are related to the occurrence of SPM, including viral infection chemotherapy, radiation, genetics, smoking, betel quid chewing, and environmental factors. An early survey for SPM is indicated in first primary malignancy patients with these associated factors.

Metachronous

Segen's Medical Dictionary. All rights reserved. Occurring at a different time than another similar event. The term is the antonym of synchronous.

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Huang S. Second primary cancer risk - the impact of applying different definitions of multiple primaries: results from a retrospective population-based cancer registry study. Results As observed in this series, there is a higher incidence of multiple adenocarcinomas in male patients As a library, NLM provides access to scientific literature. Patients with uterine cancer who have those genes should be immediately investigated for the presence of second primary tumors. Second primary cancer risk—the impact of applying different definitions of multiple primaries: Results from a retrospective population-based cancer registry study. Table 1 Clinical characteristics of the analytical cohort. During the follow-up, attention should be paid on the second primary cancers that showed specific association, and depended on the first primary cancer such as first breast and second breast cancer, first prostate and second bladder cancer, and first prostate and second colorectal cancer. However, Liang et al. Search all BMC articles Search. Most of the multiple primary cancers were metachronous multiple primary cancers Several risk factors are related to the occurrence of SPM, including viral infection chemotherapy, radiation, genetics, smoking, betel quid chewing, and environmental factors. Genes associated with cancers included four groups: oncogenes, tumor suppressor genes, DNA repair genes, and apoptosis-related genes. Genitourinary malignancies were reported to be the third-most-common SPM in several reports.

Federal government websites often end in. The site is secure.

Our results suggested that second primary cancers have a specific dependency on first primary cancers. Related articles: Terms used in radiology. In two patients with synchronous carcinomas the diagnosis was suspected on barium enema and confirmed with colonoscopy and biopsy. When a patient is diagnosed with more than one cancer, multiple primary cancers may be reported. Liang F. Retaining a cancer registry is one of the most effective approaches to studying cancer epidemiology and healthcare-management planning worldwide. Tabuchi et al. The time lag between the first and second malignant transformation is variable. This issue is beyond this review. New malignancies following breast cancer. However, Liang et al. Cheng H.

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