Home   Chapter Home   Jobs   Conferences   Fellowships   Books



Advertisement

Soft tissue
Fibroblastic / myofibroblastic tumors
Myositis ossificans

Reviewer: Daniel Wimmer, D.O. (see Reviewers page)
Editor: Jerad M. Gardner, M.D.
Revised: 8 June 2013, last major update June 2013
Copyright: (c) 2002-2013, PathologyOutlines.com, Inc.

Definition
=========================================================================
Terminology
=========================================================================
Epidemiology
=========================================================================
Sites
=========================================================================
Radiology
=========================================================================
Case reports
=========================================================================
Treatment
=========================================================================
Gross description
=========================================================================
Gross images
=========================================================================
Bone fragment from abdominal wall
Micro description
=========================================================================
Micro images
=========================================================================

Images from AFIP:
Mature bone at periphery, fibrous tissue resembling nodular fasciitis at center, osteoid in between
Fibroblastic and myofibroblastic cells in center of lesion resemble nodular fasciitis, with nuclear uniformity
Osteoid is broader than in osteosarcoma
Figure 1
Figure 2
Osteoid undergoing mineralization
Fig 1: Osteoblasts have large nuclei with prominent nucleoli, but clues to benign nature of lesion are reactive fibrous areas
Fig 2: Osteoid deposition is uniform, and nuclei are enlarged but not pleomorphic


Other images:
2x
10x
40x
Various images of thigh lesion
Cytology images
=========================================================================
Hip mass with FNA showing crystals consistent with calcium
Virtual slides
=========================================================================
Myositis ossificans
Positive stains
=========================================================================
Electron microscopy description
=========================================================================
Molecular / cytogenetics description
=========================================================================
Differential diagnosis
=========================================================================
End of Soft tissue > Fibroblastic / myofibroblastic tumors > Myositis ossificans


This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patient's clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician.

All information on this website is protected by copyright of PathologyOutlines.com, Inc. Information from third parties may also be protected by copyright. Please contact us at copyrightPathOut@gmail.com with any questions (click here for other contact information).