Search results
Results From The WOW.Com Content Network
The epithelioid inflammatory myofibroblastic sarcoma subtype of IMT shows sheets of epithelioid to round cells within a myxoid (i.e. appears blue or purple compared to the normal red appearance of connective tissue when appropriately H&E stained and examined under the microscope), collagenous, or mixed myxoid-collagenous matrix, <5% spindle ...
Spindle cell sarcoma in muscle tissue. Spindle cell sarcoma is a type of connective tissue cancer.The tumors generally begin in layers of connective tissue, as found under the skin, between muscles, and surrounding organs, and will generally start as a small, inflamed lump, which grows in size.
The precursor cell of PEComas is currently unknown; there is no normal counterpart "perivascular epitheloid cell". [1] Genetically, PECs are linked to the tuberous sclerosis genes TSC1 and TSC2, although this link is stronger for angiomyolipoma and lymphangioleiomyomatosis than for other members of the PEComa family.
Four main hypotheses have been proposed for the cellular origins of carcinosarcoma, based largely on the pathology of the disease. [1] [3] First, the collision tumor hypothesis, which proposes the collision of two independent tumors resulting in a single neoplasm, based on the observation that skin cancers and superficial malignant fibrous histiocytomas are commonly seen in patients with sun ...
A sarcoma is a malignant tumor, a type of cancer that arises from cells of mesenchymal (connective tissue) origin. [1] [2] Connective tissue is a broad term that includes bone, cartilage, muscle, fat, vascular, or other structural tissues, and sarcomas can arise in any of these types of tissues.
Connective tissue diseases can be classified into two groups: (1) a group of relatively rare genetic disorders affecting the primary structure of connective tissue; and (2) a number of acquired conditions where the connective tissues are the site of multiple, more or less distinct immune and inflammatory reactions.
Fibrosarcoma (fibroblastic sarcoma) is a malignant mesenchymal tumour derived from fibrous connective tissue and characterized by the presence of immature proliferating fibroblasts or undifferentiated anaplastic spindle cells in a storiform pattern. Fibrosarcomas mainly arise in people between the ages of 25 and 79. [1]
Embryonal rhabdomyosarcoma (EMRS) is a rare histological form of cancer in the connective tissue wherein the mesenchymally-derived cells (rhabdomyoblasts) resemble the primitive developing skeletal muscle of the embryo. It is the most common soft tissue sarcoma occurring in children. [1]