Os triangulare

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The os triangulare (also known as the os intermedium antebrachii or os triquetrum secundarium) is an accessory ossicle located between the ulnar styloid, lunate and triquetrum ^1-2.

They may be unilatreal or bilateral and the main differential diagnosis is non-union of an ulnar styloid process fracture ^{1, 3}.

Differential diagnosis

lunula: lies at the tip of the ulnar styloid
persistent ulnar styloid ossicle
ulnar styloid fracture

-The os triangulare (also known as the os intermedium antebrachii or os triquetrum secundarium) is an <a href="/articles/accessory-ossicles-of-the-wrist">accessory ossicle</a> located between the <a title="Ulna" href="/articles/ulna">ulnar</a> styloid, <a href="/articles/lunate-1">lunate</a> and <a href="/articles/triquetrum">triquetrum</a> 1-2.They may be unilatreal or bilateral and the main differential diagnosis is non-union of an ulnar styloid process fracture 1, 3. <h4>Differential diagnosis</h4><ul>
+The os triangulare (also known as the os intermedium antebrachii or os triquetrum secundarium) is an <a href="/articles/accessory-ossicles-of-the-wrist">accessory ossicle</a> located between the <a href="/articles/ulna">ulnar</a> styloid, <a href="/articles/lunate-1">lunate</a> and <a href="/articles/triquetrum">triquetrum</a> 1-2.They may be unilatreal or bilateral and the main differential diagnosis is non-union of an ulnar styloid process fracture 1, 3. Differential diagnosis<ul>
~~-<li><a href="/articles/ulna-styloid-fracture">ulnar styloid fracture</a></li>~~
+<li><a title="Ulnar styloid fracture" href="/articles/ulnar-styloid-fracture-2">ulnar styloid fracture</a></li>

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Os triangulare

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