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单词 sarcoma
释义

sarcoma


sar·co·ma

S0089300 (sär-kō′mə)n. pl. sar·co·mas also sar·co·ma·ta (-mə-tə) A malignant tumor arising from bone or from soft tissues such as muscle, cartilage, fat, or blood or lymph vessels.
[New Latin, from Greek sarkōma, sarkōmat-, fleshy excrescence, from sarkoun, to produce flesh, from sarx, sark-, flesh.]
sar·co′ma·toid′ (-mə-toid′), sar·co′ma·tous (-təs) adj.

sarcoma

(sɑːˈkəʊmə) n, pl -mata (-mətə) or -mas (Pathology) pathol a usually malignant tumour arising from connective tissue[C17: via New Latin from Greek sarkōma fleshy growth; see sarco-, -oma] sarˈcomaˌtoid, sarˈcomatous adj

sar•co•ma

(sɑrˈkoʊ mə)

n., pl. -mas, -ma•ta (-mə tə) any of various malignant tumors composed of neoplastic cells resembling embryonic connective tissue. [1650–60; < New Latin < Greek sárkōma fleshy growth] sar•co′ma•tous (-ˈkoʊ mə təs, -ˈkɒm ə-) adj.

sar·co·ma

(sär-kō′mə) A usually malignant tumor arising in connective tissue.

sarcoma

a rare malignant tumor of the soft tissues that commonly develops in the lower extremities.See also: Cancer
any of various malignant tumors formed in connective tissue. See also cancer. — sarcomatous, sarcomatoid, adj.See also: Disease and Illness
Thesaurus
Noun1.sarcoma - a usually malignant tumor arising from connective tissue (bone or muscle etc.)sarcoma - a usually malignant tumor arising from connective tissue (bone or muscle etc.); one of the four major types of cancercancer, malignant neoplastic disease - any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood streamchondrosarcoma - a malignant neoplasm of cartilage cellsendothelial myeloma, Ewing's sarcoma, Ewing's tumor, Ewing's tumour - malignant tumor in bone marrow (usually in the pelvis or in long bones)Kaposi's sarcoma - a sarcoma that starts with purplish spots on the feet and legs and spreads from the skin to lymph nodes and internal organs; a common manifestation of AIDS; "until 1980 Kaposi's sarcoma occurred almost exclusively with Jewish or Italian or black men"leiomyosarcoma - sarcoma of smooth muscle; occurs most often digestive tract or uterus or bladder or prostateliposarcoma - sarcoma of fat cellsmyosarcoma - sarcoma of muscle tissuemalignant neuroma, neurosarcoma - a malignant neoplasm of nerve tissue and fibrous tissue and connective tissueosteogenic sarcoma, osteosarcoma - malignant bone tumor; most common in children and young adults where it tends to affect the femurrhabdomyosarcoma, rhabdosarcoma - a highly malignant neoplasm derived from striated muscleadenomyosarcoma, embryoma of the kidney, nephroblastoma, Wilms' tumor, Wilms tumour - malignant renal tumor of young children characterized by hypertension and blood in the urine and the presence of a palpable mass
Translations
Sarkomsarcomesarcoma

sarcoma


sarcoma

(särkō`mə), highly malignant tumor arising in connective- and muscle-cell tissue. It is the result of oncogenes (the cancer causing genes of some viruses) and proto-oncogenes (cancer causing genes in human cells). It may affect bone, cartilage, blood vessels, lymph nodes, and skin. See cancercancer,
in medicine, common term for neoplasms, or tumors, that are malignant. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth.
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; neoplasmneoplasm
or tumor,
tissue composed of cells that grow in an abnormal way. Normal tissue is growth-limited, i.e., cell reproduction is equal to cell death. Feedback controls limit cell division after a certain number of cells have developed, allowing for tissue repair
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.

Sarcoma

 

a malignant tumor that consists of connective tissue. Mesenchymomas, which are sarcomas made up of embryonic connective tissue (mesenchyma), are distinguished from sarcomas made up of mature tissues of mesenchymal origin, for example, bone sarcomas (osteosarcomas), cartilaginous sarcomas (chondrosarcomas), vascular sarcomas (angiosarcomas), hematopoietic sarcomas (reticulosarcomas), muscular sarcomas (leiomyosarcomas, rhabdosarcomas), and sarcomas of skeletal nerve tissue (gliosarcomas).

Sarcomas constitute about 10 percent of all malignant tumors; they occur relatively more often in some African and Asian countries. The most common sarcomas are bone tumors and tumors of soft tissues, including muscular, vascular, and nerve tissues. Sarcomas of the hematopoietic organs occur less frequently. Histomorphologically, there are round-cell, polymorphocellular (sometimes giant-cell), and spindle-cell sarcomas, all of which differ in the shape and size of the cells, and fibrosarcomas, in which fibrous elements predominate over cellular elements.

All malignant tumors are characterized by growing into and destroying surrounding tissues; this property is especially pronounced in sarcomas. The early stages of cancers differ from the early stages of sarcomas; cancers metastasize to the nearest lymph nodes, while sarcomas usually spread by way of the bloodstream and frequently metastasize to remote organs.

The principles and methods of diagnosis, preventive measures, and treatment of sarcomas are the same as those used for other malignant tumors.

REFERENCE

Klinicheskaia onkologiia. Edited by N. N. Blokhin and B. E. Peterson, vols. 1–2. Moscow, 1971.

L. M. SHABAD

sarcoma

[sär′kō·mə] (medicine) A malignant tumor arising in connective tissue and composed principally of anaplastic cells that resemble those of supportive tissues.

sarcoma

Pathol a usually malignant tumour arising from connective tissue

sarcoma


sarcoma

 [sahr-ko´mah] (pl. sarcomas, sarco´mata.) A tumor, often highly malignant, composed of cells derived from connective tissue such as bone, cartilage, muscle, blood vessel, or lymphoid tissue; sarcomas usually develop rapidly and metastasize through the lymph channels. Different types are named for the specific tissue they affect: fibrosarcoma in fibrous connective tissue; lymphosarcoma in lymphoid tissues; osteosarcoma in bone; chondrosarcoma in cartilage; rhabdosarcoma in muscle; and liposarcoma in fat cells. adj., adj sarco´matous.Abernethy's sarcoma a malignant fatty tumor occurring mainly on the trunk.alveolar soft part sarcoma one with a reticulated fibrous stroma enclosing groups of sarcoma cells enclosed in alveoli walled with connective tissue.botryoid sarcoma (sarcoma botryoi´des) an embryonal rhabdomyosarcoma arising in submucosal tissue, usually in the upper vagina, cervix uteri, or bladder neck in young children and infants, presenting grossly as a polypoid grapelike structure.endometrial stromal sarcoma a pale, polypoid, fleshy, malignant tumor of the endometrial stroma.Ewing's sarcoma a malignant tumor of the bone that arises in medullary tissue, usually found in cylindrical bones, with pain, fever, and leukocytosis as prominent symptoms; called also Ewing's tumor.giant cell sarcoma a malignant form of tumor" >giant cell tumor of bone.granulocytic sarcoma chloroma.immunoblastic sarcoma of B cells an aggressive B-cell lymphoma believed to arise from transformed interfollicular B lymphocytes, which in many cases is associated with a preexisting immunologic disorder, e.g., Sjögren's syndrome, systemic lupus erythematosus, or Hashimoto's thyroiditis, or with an immunocompromised state.immunoblastic sarcoma of T cells a group of T-cell lymphomas comprising tumors derived from T lymphocytes in the paracortical area arising from a mixture of small lymphocytes and many large transformed cells; the latter are characterized by one or more small but distinctly eosinophilic nucleoli.Kaposi sarcoma a multicentric, malignant neoplastic vascular proliferation characterized by bluish red cutaneous nodules, usually on the lower extremities, most often on the toes or feet; the nodules slowly increase in size and number and spread to more proximal sites. Tumors often remain confined to skin and subcutaneous tissue, but widespread visceral involvement may occur. The condition occurs endemically in certain parts of Central Africa and Central and Eastern Europe, and a particularly virulent and disseminated form occurs in immunocompromised patients such as transplant recipients and those with acquired immunodeficiency syndrome. Human herpesvirus 8 has been implicated as a causative agent.lymphatic sarcoma diffuse lymphoma.osteogenic sarcoma a malignant primary tumor of bone composed of a malignant connective tissue stroma with evidence of osteoid, bone, and/or cartilage formation; depending upon the dominant component, classified as osteoblastic, fibroblastic, or chondroblastic.pseudo–Kaposi sarcoma unilateral subacute to chronic dermatitis, often with postinflammatory hyperpigmentation, occurring in association with underlying arteriovenous fistula, which closely resembles Kaposi sarcoma both clinically and histologically.reticulum cell sarcoma histiocytic lymphoma.

sar·co·ma

(sar-kō'mă), A connective tissue neoplasm, usually highly malignant, formed by proliferation of mesodermal cells. [G. sarkōma, a fleshy excrescence, fr. sarx, flesh, + -oma, tumor]

sarcoma

(sär-kō′mə)n. pl. sarco·mas also sarco·mata (-mə-tə) A malignant tumor arising from bone or from soft tissues such as muscle, cartilage, fat, or blood or lymph vessels.
sar·co′ma·toid′ (-mə-toid′), sar·co′ma·tous (-təs) adj.

sarcoma

A malignancy of mesenchymal tissues—e.g., bone (osteosarcoma), cartilage (chondrosarcoma), fat (liposarcoma), fibrous tissue (fibrosarcoma), smooth muscle (leiomyosarcoma), skeletal muscle (rhabdomyosarcoma), stroma (fibrosarcoma) and vessels (angiosarcoma, KS). Certain tumours are of uncertain cell lineage, but some are specifically designated sarcomas—e.g., alveolar soft part sarcoma, epithelioid sarcoma, Ewing sarcoma, synovial sarcoma.
DiffDx
Pseudosarcomas, which are either:
1. Mesenchymal and non-malignant soft tissue lesions—e.g., fibrous histiocytoma and fibromatoses; or
2. Non-mesenchymal and malignant, most commonly spindle cell squamous carcinoma of oral cavity, anaplastic carcinoma and melanoma.
 
Prognosis
Clinical behaviour of sarcomas is determined by tumour size (e.g., > 10 cm is worse), presence of necrosis, and histologic grading (based on mitotic activity and cellular pleomorphism); sarcomas in men have a worse prognosis.
Management
Wide excision; chemo- and radiotherapy are ineffective.

sarcoma 

Oncology A CA of mesenchymal tissues–eg, bone–osteosarcoma, cartilage–chondrosarcoma, fat–liposarcoma, fibrous tissue–fibrosarcoma, smooth muscle–leiomyosarcoma, skeletal muscle–rhabdomyosarcoma, stroma–fibrosarcoma, and vessels–angiosarcoma, KS; certain tumors are of uncertain cell lineage, but designated sarcomas–eg, alveolar soft part sarcoma, epithelioid sarcoma, Ewing sarcoma, synovial sarcoma DiffDx Pseudosarcomas, which are either 1. Mesenchymal and non-malignant soft tissue lesions–eg, fibrous histiocytoma and fibromatoses and.2. Non-mesenchymal and malignant, most commonly spindle cell squamous carcinoma of oral cavity, anaplastic carcinoma, melanoma Prognosis Clinical behavior of sarcomas is determined by tumor size–eg, > 10 cm is worse, presence of necrosis, and histologic grading–based on mitotic activity and cellular pleomorphism; sarcomas in ♂ have a worse prognosis Treatment Wide excision; chemo- and RT are ineffective.

sar·co·ma

(sahr-kō'mă) A connective tissue neoplasm, usually highly malignant, formed by proliferation of mesodermal cells. [G. sarkōma, a fleshy excrescence, fr. sarx, flesh, + -oma, tumor]

sarcoma

One of the two general types of cancer, the other being CARCINOMA. Sarcomas are malignant tumours of connective tissue such as bone, muscle, cartilage, fibrous tissue and blood vessels. Sarcomas are named after the parent tissue and include osteosarcoma, myosarcoma, chondrosarcoma, fibrosarcoma and angiosarcoma. KAPOSI'S SARCOMA is a tumour of blood vessels.

sarcoma

a cancerous growth derived from muscle, bone, cartilage or connective tissue.

Sarcoma

A type of cancer that originates from connective tissue such as bone or muscle.Mentioned in: Wilms' Tumor

sarcoma 

Malignant tumour formed by proliferation of mesodermal cells.

sar·co·ma

(sahr-kō'mă) Connective tissue neoplasm, usually highly malignant, formed by proliferation of mesodermal cells. [G. sarkōma, a fleshy excrescence, fr. sarx, flesh, + -oma, tumor]

sarcoma

Related to sarcoma: Kaposi Sarcoma, Ewing sarcoma, Soft tissue sarcoma, Synovial sarcoma
sarcoma is not available in the list of acronyms. Check:
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sarcoma


Related to sarcoma: Kaposi Sarcoma, Ewing sarcoma, Soft tissue sarcoma, Synovial sarcoma
  • noun

Words related to sarcoma

noun a usually malignant tumor arising from connective tissue (bone or muscle etc.)

Related Words

  • cancer
  • malignant neoplastic disease
  • chondrosarcoma
  • endothelial myeloma
  • Ewing's sarcoma
  • Ewing's tumor
  • Ewing's tumour
  • Kaposi's sarcoma
  • leiomyosarcoma
  • liposarcoma
  • myosarcoma
  • malignant neuroma
  • neurosarcoma
  • osteogenic sarcoma
  • osteosarcoma
  • rhabdomyosarcoma
  • rhabdosarcoma
  • adenomyosarcoma
  • embryoma of the kidney
  • nephroblastoma
  • Wilms' tumor
  • Wilms tumour
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更新时间:2025/1/12 22:32:06