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A non-ossifying fibroma (NOF) is a benign bone tumor of the osteoclastic, giant cell-rich tumor type. [1] It generally occurs in the metaphysis of long bones in children and adolescents. [ 2 ] Typically, there are no symptoms unless there is a fracture . [ 2 ]
Tenosynovial giant cell tumor (TGCT) is a non-malignant tumor defined histologically as inclusions of “osteoclast-like” multinucleated giant cells, hemosiderin, and macrophages. [1] This histology can present one of 2 clinically distinct ways. TGCT tumors often develop from the lining of joints (also known as synovial tissue).
About 10% of cases do not have lesions on the legs but rather present with one or more skin lesions outside of the legs; ~20% of individuals present with cutaneous lesion(s) but on further or later investigation are found to have disease in non-cutaneous sites such as the lymph nodes, visceral organs, [1] bone marrow, and/or, rarely, central ...
The International Classification of Diseases for Oncology (ICD-O) is a domain-specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases.
A dermatofibroma, or benign fibrous histiocytomas, is a benign nodule in the skin, typically on the legs, elbows or chest of an adult. [3] It is usually painless. [3] It usually ranges from 0.2cm to 2cm in size but larger examples have been reported. [3] It typically results from mild trauma such as an insect bite. [3]
Cerebellar pontine angle and internal auditory canal lipomas [10] Chondroid lipomas are deep-seated, firm, yellow tumors that characteristically occur on the legs of women. [7]: 625 Corpus callosum lipoma is a rare congenital brain condition that may or may not present with symptoms. [11]
The upper tumor is a benign tumor that is non-invasive. Benign tumors are usually round in shape and encapsulated by fibrous connective tissue. The lower picture depicts a malignant tumor. It is irregularly shaped, vascular, and it is invasive, crossing the basement membrane.
A bone tumor is an abnormal growth of tissue in bone, traditionally classified as noncancerous (benign) or cancerous (malignant). [ 1 ] [ 4 ] Cancerous bone tumors usually originate from a cancer in another part of the body such as from lung , breast , thyroid , kidney and prostate . [ 1 ]