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Related Experiment Video

Updated: Aug 27, 2025

Surgical Treatment of an Endolymphatic Sac Tumor

Surgical Treatment of an Endolymphatic Sac Tumor

Published on: May 26, 2023

[Chordoma-An update].

K Mellert¹, C Seeling^1,2, P Möller¹

¹Institut für Pathologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Deutschland.

Pathologie (Heidelberg, Germany)

|September 29, 2022

Summary

This summary is machine-generated.

Chordomas are rare axial skeleton tumors with notochordal origins. Differentiating these malignant tumors from benign notochordal tumors requires imaging and molecular markers like brachyury.

Keywords:

Cell lines Chordomas Immunohistology Morphology Targeted therapy

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Area of Science:

Oncology
Pathology
Genetics

Context:

Chordomas are rare malignant tumors arising from notochordal remnants in the axial skeleton.
These tumors exhibit diverse morphologies, from conventional types to variants with hepatoid or renal carcinoma-like differentiation, including poorly or dedifferentiated forms.
The transcription factor brachyury is a key diagnostic marker, though not exclusively found in chordomas.

Purpose:

To highlight the morphological spectrum of chordomas.
To emphasize the importance of integrating imaging for differential diagnosis with benign notochordal tumors (BNCT).
To underscore the necessity of in vitro models, such as cell lines, for advancing targeted therapy research.

Summary:

Chordomas present a wide range of histological appearances.
Distinguishing chordomas from BNCT involves differentiating imaging characteristics, as BNCT is confined to vertebral bodies without osteolysis.
Brachyury expression is characteristic but not definitive for chordoma diagnosis.

Impact:

Improved diagnostic accuracy through combined morphological and imaging assessment.
Facilitation of research into novel targeted therapies for chordoma.
Establishment of essential in vitro models for preclinical studies and therapeutic validation.