What is synchronous carcinoma?
What is synchronous carcinoma?
“Synchronous” tumors refer to cases in which the second primary cancer is diagnosed within 6 months of the primary cancer; “metachronous” tumors refer to cases in which the second primary cancer is diagnosed more than 6 months after the diagnosis of the first primary cancer.
What is synchronous colorectal cancer?
Synchronous colorectal carcinoma denotes more than one primary colorectal carcinoma detected in a single patient. Metachronous colorectal carcinoma is the presence of more than one primary colorectal carcinoma detected consecutively in a single person after a set time interval.
What is metachronous?
The term metachronous is used in oncology to refer to two (or more) independent primary malignancies, when the second (or third, etc.) malignancy arose more than six months after the diagnosis of the first malignancy 1,2. These may be in the same, or in different, organs.
What is metachronous neoplasia?
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What do you mean by synchronous?
Full Definition of synchronous 1 : happening, existing, or arising at precisely the same time. 2 : recurring or operating at exactly the same periods.
Can you have 2 unrelated cancers?
A second cancer is a new cancer that’s unrelated to any previous cancer diagnosis. It’s a completely different type of cancer. Sometimes the new cancer is in the same organ or area of the body as the first cancer.
Which of the following is an acceptable option in the treatment of synchronous colon cancer located in different segments of the colon?
Treatment Option and Prognosis Surgical resection is the primary treatment option for SCRCs. Passman et al. [15] recommended that patients with lesions in adjacent segments receive a more extensive resection, including removal of proximal intestinal regions and local lymph nodes in some cases.
What is second primary cancer?
Listen to pronunciation. (SEH-kund PRY-mayr-ee KAN-ser) A term used to describe a new primary cancer that occurs in a person who has had cancer in the past. Second primary cancers may occur months or years after the original (primary) cancer was diagnosed and treated.
What does the term synchronous mean?
What is synchronous movement of cilia?
Synchronous movement: cilia in a transverse row beat simultaneously in one direction. ii. metachronous movements: cilia of longitudinal row show sequential movement one after the other in one direction. It passes like a wave. so the cilia movement in the longitudinal and transverse way is responsible for this.
What is the rate of incidence for synchronous colorectal carcinoma?
The percentages of patients with synchronous colorectal carcinomas with three or more cancers ranged from 1.8% to 16.7%[13,38]. Up to six synchronous carcinomas have been reported in the large intestine of a single patient[10,46].
How many colorectal cancers are there in a single patient?
In some cases, more than two colorectal cancers were found in each patient. The percentages of patients with synchronous colorectal carcinomas with three or more cancers ranged from 1.8% to 16.7%[13,38]. Up to six synchronous carcinomas have been reported in the large intestine of a single patient[10,46].
What is the management of synchronous colon cancer?
MANAGEMENT. If one of the synchronous cancers is early-stage colorectal cancer, colonoscopic resection (endoscopic mucosal resection or endoscopic submucosal resection) may be used. Otherwise, dual colon resection may be needed if the synchronous cancers are a large distance apart and at an advanced stage.
What is the prevalence of metachronous tumors of the ureter?
Metachronous upper-tract tumors developed in 13% of 38 patients with primary ureteral TCC and in 11% of 63 with renal TCC, after average delays of 28 and 22 months, respectively. Synchronous TCC was found in 2.3% of patients with bladder TCC, 39% of those with ureteral TCC, and 24% of those with renal TCC.
