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An incisional biopsy or core biopsy samples a portion of the abnormal tissue without attempting to remove the entire lesion or tumor. When a sample of tissue or fluid is removed with a needle in such a way that cells are removed without preserving the histological architecture of the tissue cells, the procedure is called a needle aspiration biopsy.
Excisional biopsies of skin lesions and gastrointestinal polyps are very common. The pathologist's interpretation of a biopsy is critical to establishing the diagnosis of a benign or malignant tumor, and can differentiate between different types and grades of cancer , as well as determining the activity of specific molecular pathways in the tumor.
The size of the margin is an important issue in areas that are functionally important (i.e., large vessels like the aorta or vital organs) or in areas for which the extent of surgery is minimized due to aesthetic concerns (i.e., melanoma of the face or squamous cell carcinoma of the penis). [2] The desired size of margin around the tumour can vary.
A parotidectomy is the surgical excision (removal) of the parotid gland, the major and largest of the salivary glands. The procedure is most typically performed due to neoplasms [1] (tumors), which are growths of rapidly and abnormally dividing cells. Neoplasms can be benign (non-cancerous) or malignant (cancerous).
Osteochondromas are benign lesions and do not affect life expectancy. [13] Complete excision of osteochondroma is curative and the reoccurrences take place when the removal of tumor is incomplete. Multiple reoccurrences in a well-excised lesion indicate that it may be malignant. [4]
A trend has occurred in dermatology over the last 10 years with the advocacy of a deep shave excision of a pigmented lesion. [5] [6] [7] An author published the result of this method and advocated it as better than standard excision and less time-consuming. The added economic benefit is that many surgeons bill the procedure as an excision ...
This is a shortened version of the second chapter of the ICD-9: Neoplasms.It covers ICD codes 140 to 239.The full chapter can be found on pages 101 to 144 of Volume 1, which contains all (sub)categories of the ICD-9.
The procedure is usually performed in a physician's office under local anesthetic. A small scalpel is utilized to cut around the visible tumor. Unlike a normal surgical excision, a Mohs surgery cut is performed at a beveling between 10 and 45 degrees to allow visibility of all skin layers during pathological diagnosis. [8]