Multicentric ossification
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Multicentric ossification refers to normal, or variant of normal, ossification at more than one site within a single epiphysis or apophysis. It is important to be aware of common sites where multicentric ossification may occur, to avoid confusion with fracture, apophysitis and other entities.
- tibial tuberosity: may be confused for Osgood-Schlatter disease or avulsion fracture
- calcaneal tuberosity: may be confused for fracture or Sever disease
- humeral trochlea: may be confused for fracture/avulsion
- pisiform: on lateral wrist radiograph may be confused for partially calcified soft-tissue mass, fracture or foreign body
- navicular: may be confused for fracture
- base of 5th metatarsal: may be confused for fracture or apophysitis
Comparison with the contralateral side can be very useful as ossification patterns are often, but not always, symmetric.
-<p><strong>Multicentric ossification</strong> refers to normal, or variant of normal, ossification at more than one site within a single <a title="Epiphysis" href="/articles/epiphysis">epiphysis</a> or <a title="Apophysis" href="/articles/apophysis">apophysis</a>. It is important to be aware of common sites where multicentric ossification may occur, to avoid confusion with fracture, apophysitis and other entities.</p><ul>-<li>tibial tuberosity: may be confused for <a title="Osgood-Schlatter disease" href="/articles/osgood-schlatter-disease">Osgood-Schlatter disease</a> or <a title="Avulsion fracture of tibial tuberosity" href="/articles/tibial-tuberosity-avulsion-fracture">avulsion fracture</a>- +<p><strong>Multicentric ossification</strong> refers to normal, or <a title="Normal variant" href="/articles/anatomical-variants">variant of normal</a>, ossification at more than one site within a single <a href="/articles/epiphysis">epiphysis</a> or <a href="/articles/apophysis">apophysis</a>. It is important to be aware of common sites where multicentric ossification may occur, to avoid confusion with <a title="Fracture" href="/articles/fracture-1">fracture</a>, <a title="Apophysitis (general)" href="/articles/apophysitis-general">apophysitis</a> and other entities.</p><ul>
- +<li>tibial tuberosity: may be confused for <a href="/articles/osgood-schlatter-disease">Osgood-Schlatter disease</a> or <a href="/articles/tibial-tuberosity-avulsion-fracture">avulsion fracture</a>
-<li>calcaneal tuberosity: may be confused for fracture or <a title="Sever disease" href="/articles/calcaneal-apophysitis-1">Sever disease</a> </li>- +<li>calcaneal tuberosity: may be confused for fracture or <a href="/articles/calcaneal-apophysitis-1">Sever disease</a> </li>
-<a title="Pisiform" href="/articles/pisiform">pisiform</a>: on lateral wrist radiograph may be confused for partially calcified soft-tissue mass, fracture or foreign body</li>- +<a href="/articles/pisiform">pisiform</a>: on lateral wrist radiograph may be confused for partially calcified soft-tissue mass, fracture or foreign body</li>
-<a title="Navicular" href="/articles/navicular">navicular</a>: may be confused for fracture</li>-<li>base of 5th metatarsal: may be confused for fracture or apophysitis</li>-</ul><p>Comparison with the contralateral side can be very useful as ossification patterns are often, but not always, symmetric. </p><p> </p><p> </p>- +<a href="/articles/navicular">navicular</a>: may be confused for fracture</li>
- +<li>base of 5th metatarsal: may be confused for fracture or <a title="Apophysitis of 5th metatarsal" href="/articles/iselin-disease">apophysitis</a>
- +</li>
- +</ul><p>Comparison with the contralateral side can be very useful as ossification patterns are often, but not always, symmetric. </p>
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