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An involucrum (plural involucra) is a layer of new bone growth outside existing bone.

There are two main contexts:

See also[edit]


  1. ^ Pineda, Carlos; Espinosa, Rolando; Pena, Angelica (May 2009). "Radiographic Imaging in Osteomyelitis: The Role of Plain Radiography, Computed Tomography, Ultrasonography, Magnetic Resonance Imaging, and Scintigraphy". Semin Plast Surg. 23 (2): 080–089. doi:10.1055/s-0029-1214160. PMC 2884903. PMID 20567730.
  2. ^ "Science Word of the Day: Involucrum". National Geographic. 2015-01-05. Retrieved 29 October 2018.
  3. ^ Switek, Brian (1 December 2010). "How Did Whales Evolve?". Smithsonian. Retrieved 30 October 2018.