Pineocytoma: Difference between revisions

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*Patients of all age groups may develop pineocytoma.<ref name=epipineo12>Epidemiology of pineocytoma. Dr Bruno Di Muzio and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/pineocytoma. Accessed on November 20, 2015</ref>
*Patients of all age groups may develop pineocytoma.<ref name=epipineo12>Epidemiology of pineocytoma. Dr Bruno Di Muzio and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/pineocytoma. Accessed on November 20, 2015</ref>
*Pineocytoma affects men and women equally.
*Pineocytoma affects men and women equally.
*Pineocytoma is a rare disease that tends to affect the ung adul


==References==
==References==

Revision as of 14:41, 20 November 2015

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

Overview

Pineocytoma, also known as a pinealocytoma, is a benign, slowly growing pineal parenchymal tumor.[1]

Pathophysiology

  • On gross pathology, pineocytoma is characterized by solid, sometimes with focal areas of cystic change, well-circumscribed mass with or without hemorrhage.[2]
  • On microscopic histopathological analysis, pineocytoma is characterized by:[3]
  • Cytologically benign cells (uniform size of nuclei, regular nuclear membrane, light chromatin)
  • Pineocytomatous/neurocytic rosette, which is an irregular circular/flower-like arrangement of cells with a large meshwork of fibers (neuropil) at the centre
  • According to the WHO classification of tumors of the central nervous system, pineocytoma is classified into a WHO grade I tumor.[4]

Gallery

  • Intermediate magnification micrograph of a pineocytoma. HPS stain.[5]
    Intermediate magnification micrograph of a pineocytoma. HPS stain.[5]
  • High magnification micrograph of a pineocytoma. HPS stain.[5]
    High magnification micrograph of a pineocytoma. HPS stain.[5]
  • Very high magnification micrograph of a pineocytoma. HPS stain.[5]
    Very high magnification micrograph of a pineocytoma. HPS stain.[5]

Epidemiology

  • Patients of all age groups may develop pineocytoma.[6]
  • Pineocytoma affects men and women equally.
  • Pineocytoma is a rare disease that tends to affect the ung adul

References

  1. ↑ Pineocytoma. Wikipedia 2015. https://en.wikipedia.org/wiki/Pineocytoma. Accessed on November 18, 2015
  2. ↑ Pathology and radiographic features of pineocytoma. Dr Bruno Di Muzio and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/pineocytoma. Accessed on November 18, 2015
  3. ↑ Microscopic features of pineocytoma. Libre Pathology 2015. http://librepathology.org/wiki/index.php/Pineal_gland#Pineocytoma. Accessed on November 18, 2015
  4. ↑ General feature of pineocytoma. Libre pathology 2015. http://librepathology.org/wiki/index.php/Pineal_gland#Pineocytoma. Accessed on November 18, 2015
  5. ↑ 5.0 5.1 5.2 Microscopic images of pineocytoma. Libre Pathology 2015. http://librepathology.org/wiki/index.php/Pineal_gland#Pineocytoma. Accessed on November 18, 2015
  6. ↑ Epidemiology of pineocytoma. Dr Bruno Di Muzio and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/pineocytoma. Accessed on November 20, 2015


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