endothelial myeloma

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endothelial myeloma

A doctor examines an X-ray showing an endothelial myeloma in a patient's femur.

Definition
  1. Noun:
    • A type of malignant bone tumor: "Endothelial myeloma" is a medical term for a specific, rare, and aggressive cancerous tumor that originates in the bone marrow. It is characterized by the proliferation of abnormal cells derived from the endothelium within the marrow cavity.
Usage
  • The term "endothelial myeloma" is used almost exclusively in specialized medical, pathological, and oncological contexts to diagnose and classify a specific bone cancer.
  • It typically refers to tumors found in locations such as the pelvis or the long bones of the body (e.g., femur, tibia).
Examples
  • Noun:
    • The biopsy confirmed a diagnosis of endothelial myeloma.
    • Treatment for endothelial myeloma often involves a combination of chemotherapy and radiation.
Advanced Usage
  • In clinical pathology, "endothelial myeloma" may be discussed in relation to its histological features under a microscope.
  • The term may appear in differential diagnoses when a patient presents with bone pain and a destructive lesion on imaging.
Variants and Related Words
  • Ewing's sarcoma: This is the more common contemporary name for the condition historically or alternatively referred to as "endothelial myeloma." The two terms are often used synonymously in medical literature.
  • Bone marrow tumor: A broader, descriptive term.
  • Primary bone cancer: A general category that includes endothelial myeloma/Ewing's sarcoma.
Synonyms
  • Ewing's sarcoma (primary synonym)
  • Ewing sarcoma
  • Peripheral primitive neuroectodermal tumor (pPNET) of bone (a related classification)
Notes on Meaning
  • The term is highly technical. The "endothelial" component suggests an origin from endothelial (lining) cells within blood vessels in the marrow, while "myeloma" indicates a tumor of the bone marrow. However, modern classification places this tumor in the Ewing sarcoma family.
  • It is crucial to distinguish this from multiple myeloma, which is a different type of cancer also originating in bone marrow but involving plasma cells.
endothelial myeloma

A doctor examines an X-ray showing an endothelial myeloma in a patient's femur.

Noun
  1. malignant tumor in bone marrow (usually in the pelvis or in long bones)

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