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1.

Liposarcoma

A malignant tumor derived from primitive or embryonal lipoblastic cells. It may be composed of well-differentiated fat cells or may be dedifferentiated: myxoid (LIPOSARCOMA, MYXOID), round-celled, or pleomorphic, usually in association with a rich network of capillaries. Recurrences are common and dedifferentiated liposarcomas metastasize to the lungs or serosal surfaces. (From Dorland, 27th ed; Stedman, 25th ed) [from MeSH]

MedGen UID:
44177
Concept ID:
C0023827
Neoplastic Process
2.

Sarcoma

A connective tissue neoplasm formed by proliferation of mesodermal cells. Bone and soft tissue sarcomas are the main types of sarcoma. Sarcoma is usually highly malignant. [from HPO]

MedGen UID:
224714
Concept ID:
C1261473
Neoplastic Process
3.

Pleomorphic Liposarcoma

A liposarcoma characterized by the presence of varying proportions of pleomorphic lipoblasts in a background that resembles undifferentiated pleomorphic sarcoma. It is the rarest liposarcoma variant and usually has an aggressive clinical course. [from NCI]

MedGen UID:
61457
Concept ID:
C0205825
Neoplastic Process
4.

A 17

MedGen UID:
25639
Concept ID:
C0050288
Organic Chemical; Pharmacologic Substance
5.

Left

Being located on the left side of the body. [from HPO]

MedGen UID:
618170
Concept ID:
C0443246
Spatial Concept
6.

Well Differentiated Liposarcoma

A locally aggressive malignant neoplasm composed of mature adipocytes showing cell size variation and nuclear atypia. It is often associated with the presence of hyperchromatic multinucleated stromal cells, and varying numbers of lipoblasts. There are three histologic subtypes, sclerosing, inflammatory, and spindle cell liposarcoma. These tumors do not usually metastasize unless they undergo dedifferentiation. [from NCI]

MedGen UID:
237164
Concept ID:
C1370889
Neoplastic Process
7.

Pathogenesis

The pathologic, physiologic, or biochemical mechanism resulting in the development of a disease or morbid process. [from NCI]

MedGen UID:
195936
Concept ID:
C0699748
Pathologic Function
8.

Proliferation

MedGen UID:
137720
Concept ID:
C0334094
Pathologic Function
9.

Mass of body structure

A benign or malignant pathologic structure in any part of the body, resulting from a neoplastic accumulation of cells, inflammatory cells, or cystic changes. [from NCI]

MedGen UID:
108287
Concept ID:
C0577559
Finding
10.

Lesion

A localized pathological or traumatic structural change, damage, deformity, or discontinuity of tissue, organ, or body part. [from NCI]

MedGen UID:
65128
Concept ID:
C0221198
Finding
11.

Distal

Localized away from the central point of the body. [from HPO]

MedGen UID:
64375
Concept ID:
C0205108
Spatial Concept
12.

Proximal

Localized close to the central point of the body. [from HPO]

MedGen UID:
64374
Concept ID:
C0205107
Spatial Concept
13.

Negative

An absence finding of the specified component / analyte, organism or clinical sign based on the established threshold of the performed test or procedure. [Note: Negative does not necessarily imply the complete absence of the specified item.].  [from HL7]

MedGen UID:
61377
Concept ID:
C0205160
Finding
14.

Epithelioid Sarcoma

An aggressive malignant neoplasm of uncertain differentiation, characterized by the presence of epithelioid cells forming nodular patterns. The nodules often undergo central necrosis, resulting in a pseudogranulomatous growth pattern. It usually occurs in young adults. The most common sites of involvement are the extremities (distal-type epithelioid sarcoma), and less frequently the pelvis, perineum, and genital organs (proximal-type epithelioid sarcoma). [from NCI]

MedGen UID:
104753
Concept ID:
C0205944
Neoplastic Process
15.

Lipomatous tumor

A benign, intermediate, or malignant mesenchymal neoplasm composed of adipose (fatty) tissue. [from NCI]

MedGen UID:
61646
Concept ID:
C0206631
Neoplastic Process
16.

Connective and Soft Tissue Neoplasm

A benign, intermediate, or malignant neoplasm that affects the connective and soft tissue. [from NCI]

MedGen UID:
60224
Concept ID:
C0206765
Neoplastic Process
17.

Dedifferentiated Liposarcoma

An atypical lipomatous tumor/well differentiated liposarcoma that shows progression to a usually non-lipomatous, high grade sarcoma. The non-lipomatous sarcoma component may be present in the primary lesion or at the site of recurrence. [from NCI]

MedGen UID:
60028
Concept ID:
C0205824
Neoplastic Process
18.

Soft Tissue Neoplasm

A benign, intermediate, or malignant neoplasm that arises from the soft tissue. The most common types are lipomatous (fatty), vascular, smooth muscle, fibrous, and fibrohistiocytic neoplasms. [from NCI]

MedGen UID:
11495
Concept ID:
C0037579
Neoplastic Process
19.

Benign neoplasm of soft tissue of upper arm

MedGen UID:
756265
Concept ID:
C3163853
Neoplastic Process
20.

Sarcoma of connective tissue

MedGen UID:
745662
Concept ID:
C2211494
Neoplastic Process
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