involucrum
An involucrum is a layer of new bone growth formed outside existing bone, and it is seen in pyogenic osteomyelitis. Its formation follows a specific sequence: pus accumulating within the bone strips the periosteum away from the underlying cortex, and the lifted periosteum then lays down new bone around the infected segment. The result is a sheath of reactive bone enclosing the original cortex. Because it arises only as a response to infection, the involucrum is a pathological rather than a normal skeletal feature, and its presence is a marker of the process that produced it. It is classified within the skeletal system as a part of an organ rather than as a bone in its own right.
A layer of new bone growth outside existing bone seen in pyogenic osteomyelitis. It results from the stripping off of the periosteum by the accumulation of pus within the bone, and new bone growing from the periosteum.
On this page
| Tipo | Bone |
| Sistema corporal | Esquelético |
| Estructura principal | organ part |
Frequently Asked Questions
What is the involucrum?
A layer of new bone growth outside existing bone seen in pyogenic osteomyelitis. It results from the stripping off of the periosteum by the accumulation of pus within the bone, and new bone growing from the periosteum.
What body system is the involucrum part of?
The involucrum is part of the Esquelético.
References
Aviso médico
Este contenido es solo para fines educativos e informativos. No pretende ser un sustituto del consejo médico profesional, diagnóstico o tratamiento. Siempre busque el consejo de su médico u otro proveedor de salud calificado ante cualquier pregunta que pueda tener sobre una condición médica. Nunca ignore el consejo médico profesional ni demore en buscarlo debido a algo que haya leído en este sitio web.
Educational Disclaimer
This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions.
Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.
Embed This Widget
Add the script tag and a data attribute to embed this widget.
<script src="https://cdn.jsdelivr.net/npm/anatomyfyi-embed@1/dist/embed.min.js" defer></script>
<div data-anatomyfyi="entity" data-slug="involucrum"></div>
Embed via iframe for maximum compatibility.
<iframe src="https://anatomyfyi.com/iframe/entity/involucrum/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>
Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://anatomyfyi.com/structure/involucrum/
Add a dynamic SVG badge to your README or docs.
[](https://anatomyfyi.com/structure/involucrum/)
Use the native HTML custom element.
<script src="https://cdn.jsdelivr.net/npm/anatomyfyi-embed@1/dist/embed.min.js" defer></script>
<anatomyfyi-entity slug="involucrum"></anatomyfyi-entity>