Bizarre parosteal osteochondromatous proliferation
| Bizarre parosteal osteochondromatous proliferation | |
|---|---|
| Diagnosis in short | |
|
| |
| Synonyms | Nora lesion |
General
A distinctive osteochondromatous proliferation of hands and feet.
Population
- Young adults
- 20s-30s
Location
Hands and feet
Radiology
Marginated wide based bony growth projecting into the soft tissues[1]
Gross
- Nodule covered with glistening cartilage
Microscopic
Disorganized cellular cartilage with a blue tint and patchy ossification matures into disorganized bone. A proliferation of fibroblasts surrounds the lesion and occupies intertrabecular spaces.
DDX
- Chondrosarcoma
- Periosteal chondroma
- Osteochondroma
- Low grade parosteal osteosarcoma
Diangostic categories
- Cartilaginous neoplasms
- Osteocartilaginous neoplasms
Stains
IHC
Molecular
t(1:17)(q32;q21)[2]
Sign out
Prognosis
- Benign
- Locally aggressive
See also
References
- ↑ http://radiopaedia.org/articles/bizarre-parosteal-osteochondromatous-proliferation
- ↑ Kuruvilla, S.; Marco, R.; Raymond, AK.; Al-Ibraheemi, A.; Tatevian, N. (2011). "BizarreParosteal Osteochondromatous Proliferation (Nora's lesion) with translocation t(1;17)(q32;q21): a case report and role of cytogenetic studies on diagnosis.". Ann Clin Lab Sci 41 (3): 285-7. PMID 22075515.
Grossing article[edit] Introduction. Protocol. Protocol notes. Alternate approaches. See also. Related protocols. References. External links.
Introduction
Specimen opening
Protocol
Protocol notes
Alternate approaches
See also
Related protocols
References
External links
Microscopic (heading)[edit] The key feature(s) should be marked. Definition: A key feature is a distinctive common feature that strongly favours the given diagnosis and whose absense would strongly disfavour the diagnosis or exclude it. Examples: Eosinophils in eosinophilic esophagitis. Nuclear atypia at the free surface in tubular adenoma. See also[edit] Libre Pathology. References. External links[edit] Wikipedia - Manual of style for medicine-related articles (wikipedia.org). Wikipedia Cheatsheet (wikipedia.org).