Yellow elastic cartilage                               Chart

                                           
Cell types: Chondrocyte
 

Differential diagnosis:
 Other cartilages such as hyaline cartilage do not have fibers except in the perichondrium. White cartilage has strong parallel running fibers rather than a network and the network of elastic fibers in yellow cartilage have affinity for orcein and have no periodicity under the electron microscope.
 

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Diagnostic Features:
a. Tissue is compact (e.g. liver) and sclerous in view of hardness and relative homogeneity.
b. Cartilage tissue can be recognized in view of ground glass transparent appearance and the lacunae embedded chrondrocytes.
d. Fibers are available in tissue cartilage and therefore distinguishes this type of cartilae from hyaline cartilage in which fibers are only available in perichondrium.
e. Presence of network of fibers.
f. Examples include the external ears, epiglottis, corniculate cartilages of larynx, and apical portions of the arytenoid cartilages.

Draw your own section here and make your diagnosis by data base selection below

 

 

 

 

 

 

 

 

 

 

 

Database selection: Practical Tissue Gross

Level 1: Select  compact
Level 2: Select connective tissue from list of sclerous, muscular, connective, organ-glands and nervous tissues.
Level 3: Select homogenous to suggest the ground glass appearance of the cartilage.
Level 4: Select cartilagecartilage and not spongy bone since there is no visible intraparenchymal exuberant mesenchyme.

Also look for network of fibers which do not run parallel and are not wavy.

Do you think this is a section of the larynx, epiglottis, pinna or arytenoid cartilages?

 

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