AI Article Synopsis

  • The traditional processes of membranous and endochondral ossification do not fully account for all the characteristics of the developing skeleton, especially regarding the role of chondroid tissue.
  • Researchers have identified chondroid tissue in various regions, including the mandibular symphysis of human and cat fetuses, as well as in other areas of the mandible, skull sutures, and all bones in both the axial and appendicular skeleton.
  • The formation of chondroid tissue from mesenchyme may be influenced by mechanical forces acting in reverse directions or periods of temporary reduced blood flow (ischemia).

Article Abstract

Membranous and endochondral ossification processes are insufficient to describe all the aspects observed in the growing skeleton. The presence of chondroid tissue that we have identified by means of all modern histological techniques, including those able to detect the different types of collagen, has also to be explained. Present in the mandibular symphysis of either the human or cat fetuses, chondroid tissue has also been observed in the other parts of the mandible, in the sutural areas of the skull and in all the bones of both axial and appendicular skeleton. The differentiation of the mesenchyme into chondroid tissue could probably be related with mechanical forces exerted simultaneously in opposite directions or with a transient ischemia.

Download full-text PDF

Source

Publication Analysis

Top Keywords

chondroid tissue
16
skeletal growth
4
chondroid
4
growth chondroid
4
tissue
4
tissue membranous
4
membranous endochondral
4
endochondral ossification
4
ossification processes
4
processes insufficient
4

Similar Publications

Myoepithelial tumours are rare and distinct entities with uncertain histogenesis. They occur primarily in major salivary glands and soft tissue around the head and neck. Bony involvement predominantly occurs in facial bones.

View Article and Find Full Text PDF

Calcified chondroid mesenchymal neoplasm: a clinicopathological and molecular analysis.

J Clin Pathol

January 2025

Department of Pathology, National Cancer Center, National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China

Aims: Calcified chondroid mesenchymal neoplasm (CCMN) is a recently identified category of soft tissue neoplasms defined by cartilage or cartilaginous matrix formation and gene fusions. Its rarity and similarities to other soft tissue tumours pose diagnostic challenges. This study aims to deepen understanding of CCMN, highlighting molecular pathology's role in diagnosis to reduce misdiagnosis, overdiagnosis and overtreatment.

View Article and Find Full Text PDF

Aims: Ossifying fibromyxoid tumour is a rare mesenchymal neoplasm predominantly affecting adults characterised by a multinodular growth pattern and the presence of a fibrous pseudocapsule with areas of ossification. Prompted by the recognition of a non-ossifying ossifying fibromyxoid tumour with lipomatous differentiation which caused diagnostic difficulty, we sought to further explore cases of ossifying fibromyxoid tumour with non-osseous heterologous elements.

Methods And Results: A search of our institutional and consultation archives revealed three additional cases that demonstrated lipomatous components and two cases with cartilaginous differentiation.

View Article and Find Full Text PDF
Article Synopsis
  • - Tenosynovitis with psammomatous calcifications (TPC) is a rare, non-cancerous condition that often affects women and is thought to result from repetitive use or trauma, commonly appearing at sites like the hands, feet, and wrists.
  • - In a study involving 18 new cases, most patients presented with painful masses, and imaging often showed benign characteristics, but many of these cases were misdiagnosed as more serious conditions like gout or tumors.
  • - Follow-up on patients (mostly for around 30 months) showed no local recurrences after surgical removal, highlighting the necessity for greater awareness among medical professionals regarding TPC.
View Article and Find Full Text PDF

Introduction And Importance: Chondroid syringoma also referred to as a mixed tumor, is a benign and rare tumor originating from apocrine or eccrine sweat glands; it predominantly affects middle-aged men. While fine-needle aspiration cytology can aid in diagnosis, histological confirmation remains essential due to the potential for misdiagnosis.

Case Presentation: A-22-year-old male who presented with a solitary, slow-growing, painless, erythematous nodule on the right nasal wing that had been present for 1 year, which was misdiagnosed as an epidermal cyst.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!