Ad
related to: cancer resection margin test 2 questions 1
Search results
Results From The WOW.Com Content Network
A resection margin or surgical margin is the margin of apparently non-tumorous tissue around a tumor that has been surgically removed, called "resected", in surgical oncology. The resection is an attempt to remove a cancer tumor so that no portion of the malignant growth extends past the edges or margin of the removed tumor and surrounding tissue.
Complete circumferential peripheral and deep margin assessment (CCPDMA) is the preferred method for the removal of certain cancers, especially skin cancers. [ 1 ] [ 2 ] There are two forms of CCPDMA surgery: Mohs surgery and surgical excision coupled with margin assessment.
The clinical quotes for cure rate of Mohs surgery are from 97% to 99.8% after 5 years for newly diagnosed basal-cell cancer (BCC), decreasing to 94% or less for recurrent basal-cell cancer. Radiation oncologists quote cure rates from 90 to 95% for BCCs less than 1 or 2 cm, and 85 to 90% for BCCs larger than 1 or 2 cm.
[109] [12] In the United Kingdom, the Royal College of Pathologists (1998) [110] [b] has standardised the reporting of surgical margins, with two categories, "mucosal" and "deep", and for each created groups based on the microscopic distance from invasive cancer to the margin, as follows: more than 5 mm (clear), 1–5 mm (close) and less than 1 ...
Biopsies are also used to diagnose diseases other than cancer, including inflammatory, infectious, or idiopathic diseases of the skin and gastrointestinal tract, to name only a few. Surgical resection specimens are obtained by the therapeutic surgical removal of an entire diseased area or organ (and occasionally multiple organs). These ...
A lower anterior resection, formally known as anterior resection of the rectum and colon and anterior excision of the rectum or simply anterior resection (less precise), is a common surgery for rectal cancer and occasionally is performed to remove a diseased or ruptured portion of the intestine in cases of diverticulitis.
[2] Breast-conserving surgery may also be used in cases of biopsy-proven invasive breast cancer or biopsy-proven ductal carcinoma in situ. In the assessment of the tumor, the surgeon should assess the ability to resect the tumor with clear margins while providing a cosmetic result that is acceptable to the patient. [3]
The frozen section procedure as practiced today in medical laboratories is based on the description by Dr Louis B. Wilson in 1905. Wilson developed the technique from earlier reports at the request of Dr William Mayo, surgeon and one of the founders of the Mayo Clinic [3] Earlier reports by Dr Thomas S. Cullen at Johns Hopkins Hospital in Baltimore also involved frozen section, but only after ...