Related Experiment Video
Updated: Aug 12, 2026

An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
Published on: February 8, 2019
[The ultrastructure of epithelioid cells in sarcoidosis and sarcoid reactions]
Abstract:
Electron microscopic examination of epithelioid-cell granulomas of two patients with total sarcoidosis and of three ones with isolated sarcoidosis of the skin (sarcoid reactions) has revealed a morphologic polarization of epithelioid cells, manifesting as 4 zones: (1) crimped [correction of chimp] edge zone, (2) zone of vesicles and vacuoles, (3) basal zone, (4) osmiophilic granules zone. The structure of epithelioid cells in sarcoidosis and in sarcoid reactions was found similar, evidencing a high biosynthetic function of the cells.
More Related Videos
07:40Determining Ciliary Function and Membrane Impermeability of the Pseudostratified Lung Airway Epithelium
Published on: February 21, 2025
06:15Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
Published on: August 9, 2024
Related Concept Videos
Epithelial Tissues and Their Functions
Epithelial tissues provide the body's first line of protection from physical, chemical, and...
Classification of Epithelial Tissues: Simple Epithelium
Because of the thinness of the cells, simple squamous epithelium is present where the rapid passage of chemical compounds is observed. For example, the endothelium that lines the capillaries and vessels...
Classification of Epithelial Tissues: Stratified Epithelium
Classification of Epithelial Tissues: Glandular Epithelium
Multicellular glands are formed during early development when epithelial budding...
Alveoli and Alveolar Ducts
Chronic Inflammation: Introduction