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Related Concept Videos

Growth of Cartilage and Bone Tissue01:27

Growth of Cartilage and Bone Tissue

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Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
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Bone Formation by Endochondral Ossification01:24

Bone Formation by Endochondral Ossification

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Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
6.3K
Structural Joints: Cartilaginous Joints01:17

Structural Joints: Cartilaginous Joints

3.1K
As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary...
3.1K
Development of the Limb Synovial Joints01:07

Development of the Limb Synovial Joints

1.8K
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
1.8K
Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

2.8K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
2.8K
Bone Cells and Tissue01:30

Bone Cells and Tissue

6.4K
Bones contain a relatively small number of cells entrenched in a matrix of organic and inorganic components. Although bone cells compose only a small amount of the bone volume, they are crucial to its function. Four types of cells are found within the bone tissue— osteoblasts, osteocytes, osteogenic cells, and osteoclasts.
Osteoblasts and Osteocytes
The osteoblast is the bone cell responsible for forming new bone tissue. It is found in the growing portions of bone, including the...
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Related Experiment Video

Updated: Oct 14, 2025

Visualization of Chondrocyte Intercalation and Directional Proliferation via Zebrabow Clonal Cell Analysis in the Embryonic Meckel’s Cartilage
06:40

Visualization of Chondrocyte Intercalation and Directional Proliferation via Zebrabow Clonal Cell Analysis in the Embryonic Meckel’s Cartilage

Published on: October 21, 2015

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Benign Cartilage-forming Tumors.

Darcy A Kerr1, Nicole A Cipriani2

  • 1Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH 03756, USA; Geisel School of Medicine at Dartmouth, Hanover, NH, USA.

Surgical Pathology Clinics
|November 7, 2021
PubMed
Summary

Diagnosing primary bone tumors, particularly cartilage-forming types, is challenging due to overlapping features. Accurate diagnosis requires integrating clinical, radiographic, and histologic findings for proper patient management.

Keywords:
BenignCartilageChondroblastomaChondroidChondromaNeoplasm

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Area of Science:

  • Orthopedic Pathology
  • Skeletal Oncology

Background:

  • Cartilage-forming tumors are frequent primary bone tumors, though uncommon in general pathology practices.
  • Distinguishing benign from malignant, especially low-grade malignant, cartilage-forming tumors presents diagnostic challenges due to overlapping features.

Purpose of the Study:

  • To highlight the diagnostic complexities of cartilage-forming bone tumors.
  • To emphasize the importance of integrating diverse diagnostic modalities for accurate classification and management.

Main Methods:

  • Review of the variable histologic spectrum of cartilage-forming tumors.
  • Analysis of overlapping morphologic, immunohistochemical, and genetic features.
  • Correlation of findings with clinical and radiographic data.

Main Results:

  • The variable nature of these tumors necessitates a comprehensive diagnostic approach.
  • Clinical and radiographic correlation is essential for accurate diagnosis.
  • Tumor location (surface vs. intramedullary) is a key characteristic.

Conclusions:

  • Accurate diagnosis of cartilage-forming bone tumors relies on a multidisciplinary approach.
  • Clinical correlation and radiographic assessment are crucial for management decisions.
  • Ancillary testing may be beneficial in specific diagnostic scenarios.