Bone tumor

from Wikipedia, the free encyclopedia
Classification according to ICD-10
C40 Malignant neoplasm of the bone and articular cartilage of the extremities
C41 Malignant neoplasm of bone and articular cartilage in other and unspecified locations
D16 Benign neoplasm of bone and articular cartilage
D48 New formation of unsafe or unknown behavior at other and unspecified locations
D48.0 Bones and articular cartilage
C79.5 Secondary malignant neoplasm of bone and bone marrow
ICD-10 online (WHO version 2019)

A bone tumor is a benign (benign) or malignant (malignant) swelling of the bone .


Bone tumors can basically be divided into two categories:

  1. primary bone tumors originate directly from the bone tissue ( cartilage , osteoblasts or osteoclasts ). It is typical for primary bone tumors that they have a predilection age and location . There is also usually a gender difference and often special symptoms. The primary bone tumors usually occur in the zone of longitudinal growth ( epiphyseal plate and metaphysis ); Ewing's sarcoma is an exception , as it is mostly located in the diaphysis . Since the tumors usually grow destructively (destructively), the X-ray image must be included in the diagnosis. Radiologically , they are classified according to the Lodwick classification .
    In other words: the X-ray is the macroscopic view of the bone tumors. The endings -chondroma, -osteom and -blastom stand for benign, the ending -sarcoma for malignant.
  2. Secondary bone tumors are metastases from tumors in other locations in the bone. These bone metastases are far more common than primary bone tumors and often occur in the spine (80% of the metastases originate from prostate cancer , bronchial cancer , breast cancer, or renal cell carcinoma ).

Osseous bone tumors

These tumors originate from the osteoclasts or the osteoblasts. Benign bone tumors grow slowly and displaced and do not settle metastases . The enostome is not a tumor.

Cartilaginous tumors

Connective tissue tumors

These primary tumors originate from the connective tissue of the bone matrix. They are called bone fibromas. The non-ossifying fibroma is not a tumor, but a hamartoma .

Histiocytic bone tumors

Osteomyelogenic tumors

These tumors emanating from the bone marrow space either originate from progenitor cells of the plasma cell or are undifferentiated.

Bone metastases

Tumor-like bone diseases


Web links