Hemangiopericytoma

Hemangiopericytoma
Haemangiopericytoma, Gomori methenamine silver stain
Classification and external resources
Specialty oncology, rheumatology
ICD-10 C49 (ILDS C49.M20)
ICD-O M9150/1
DiseasesDB 29249
eMedicine orthoped/500
MeSH D006393

A hemangiopericytoma (HPC) is a type of soft tissue sarcoma that originates in the pericytes in the walls of capillaries. When inside the nervous system, although not strictly a meningioma tumor, it is a meningeal tumor with a special aggressive behavior. It was first characterized in 1942.[1]

Description

Hemangiopericytoma located in the cerebral cavity is an aggressive tumor of the Mesenchyme with oval nuclei with scant cytoplasm. "There is dense intercellular reticulin staining. Tumor cells can be fibroblastic, myxoid, or pericytic. These tumors, in contrast to meningiomas, do not stain with epithelial membrane antigen. They have a grade 2 or 3 biological behavior, and need to be distinguished from benign meningiomas because of their high rate of recurrence (68.2%) and metastases (Maier et al. 1992;[2] Kleihues et al. 1993 [3])." [4]

Treatment

Depending on the grade of the sarcoma, it is treated with surgery,[5][6] chemotherapy and/or radiotherapy.

Etymology

The word hemangiopericytoma comes from the ancient Greek words: haema (combining form of Ancient Greek αἷμα, haîma, “blood”), angio- (means blood vessel), angioma, peri- (prefix meaning “about” or “around”, “enclosing” or “surrounding”, and “near”, appearing in loanwords from Greek; and -cytoma (refers to the cells surrounding the blood vessel walls).

See also

References

  1. ↑ Stout AP, Murray MR (1942). "Hemangiopericytoma: a vascular tumor featuring Zimmermann's pericytes". Ann Surg. 116: 26–33. doi:10.1097/00000658-194207000-00004.
  2. ↑ Maier H, Ofner D, Hittmair A, Kitz K, Budka H (1992). "Classic, atypical, and anaplastic meningioma: three histopathological subtypes of clinical relevance.". Neurosurg (77): 616–23.
  3. ↑ Kleihues P, Burger PC, Scheithauer BW (1993). "Histological typing of tumours of the central nervous system". World Health Organization. Berlin : Springer-Verlag (2nd ed.) (30).
  4. ↑ Sherman Sojka W MD; Raizer J MD; Dropcho E.J.MD. "Meningiomas". Medmerits: 2.
  5. ↑ Yahyazadeh, Seyed Hossein; Malekpour, Nasser; Mousavi, Mehdi; Molanayi, Saadat; Salmanian, Bahram; Mohamadi, Amin (2013). "Malignant Retroperitoneal Hemangiopericytoma: Report of a 73 Years Old Woman and Review of Literature". Thrita. 2 (2): 80–83. doi:10.5812/thrita.10606. ISSN 2352-0620. Retrieved 2014-11-15.
  6. ↑ Ozaki N, Mukohara N, Yoshida M, Shida T (April 2006). "Successful resection of giant hemangeopericytoma originating from the left atrium". Interact Cardiovasc Thorac Surg. 5 (2): 79–80. doi:10.1510/icvts.2005.124107. PMID 17670519.

Further reading

Schiariti, M; Goetz, P; El-Maghraby, H; Tailor, J; Kitchen, N (Mar 2011). "Hemangiopericytoma: long-term outcome revisited. Clinical article.". Journal of Neurosurgery. 114 (3): 747–55. doi:10.3171/2010.6.JNS091660. PMID 20672899. 

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