Synchronous Cancer

Currently there is no consensus on the definition of synchronous cancer. Among the proposed definitions are
(1) Two or more histologically distinct simultaneously detected malignancies
(2) Two or more histologically distinct malignancies diagnosed during the same hospital admission
(3) Two or more histologically distinct malignancies arising in the same site, following each other in sequence by less than 2 months
References in periodicals archive ?
triple endoscopy) is controversial in patients with a normal chest CT because the detection rate for an endobronchial synchronous cancer is on the order of less the 1%.
Limitations of FDG-PET and FDG-PET with computed tomography for detecting synchronous cancer in pharyngeal cancer.
This makes sense given that the diagnostic value of TNE is reported to be equivalent to that of rigid endoscopy in terms of detecting synchronous cancers.
18) In Vitale's series, a synchronous cancer was detected in three patients (9.
In one study multifocality was found in 18% of synchronous cancers on both sides and it was suggested that the presence of multi centric tumours was a risk factor for bilateral breast cancer.
12 Synchronous cancers occur in 4% of head and neck cancers.
Synchronous cancers are defined as malignant tumors that occur simultaneously.
The GI tract was the site of 70% of the synchronous cancers, while the majority of the metachronous cancers occurred in the lung (21%) and prostate (19%).
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