creators_name: MN, Vidya creators_name: Shivakumar, Swarna creators_name: Biswas, Siddhartha creators_name: S, Vijay Shankar creators_id: vijayshankarpatho@gmail.com editors_name: Kakkilaya, Srinivas editors_id: BS Kakkilaya type: journale datestamp: 2011-05-02 17:16:36 lastmod: 2011-05-02 17:16:36 metadata_visibility: show title: Olfactory Neuroblastoma: Diagnostic Difficulty ispublished: pub subjects: OJHAS full_text_status: public keywords: Olfactory neuroblastoma; Nasal cavity; Immunohistochemistry abstract: Olfactory neuroblastoma is an uncommon malignant tumor of sinonasal tract arising from the olfactory neuro epithelium. The olfactory neuroblastomas presenting with divergent histomorphologies like, epithelial appearance of cells, lacking a neuro fibrillary background and absence of rosettes are difficult to diagnose. Such cases require immunohistochemistry to establish the diagnosis. We describe the clinical features, pathological and immunohistochemical findings of grade IV Olfactory neuroblastoma in a 57 year old man date: 2011-01-20 date_type: published publication: Online Journal of Health and Allied Sciences volume: 9 number: 4 publisher: BS Kakkilaya refereed: TRUE referencetext: 1. Christopher DM Fletcher. Tumors of the upper respiratory tract. In Christopher DM Fletcher. Diagnostic histopathology of tumors. 3rd ed. Elsevier, 2007. pp 112-118. 2. Ghaffar, Shehzad, Salahuddin, et al. Olfactory neuroblastoma: a case report and review of the literature. Ear, Nose and Throat Journal. 2005 March;84(3):150-52. 3. Arafat Ayoub, Mohammed Ali Hiari. Olfactory neuroblastoma: A Case Report. Journal of Research in Medical Sciences. Dec 2005;12(2):48-50. 4. Roasi J. Respiratory tract. In Rosai J, ed Ackerman’s Surgical Pathology. 9th ed. Elsevier 2004;Vol 1. pp 316-17. 5. Frierson HF Jr, Ross GW, Mills SE,et al. Olfactory neuroblastoma. Additional immunohistochemical characterization. Am J Clin pathol. 1991 Jun;95(6):903. 6. Mills, Stacey EMD, Frierson, et al. Olfactory neuroblastoma: A clinicopathologic study of 21 cases. The Am J of Surg Pathol 1995;9:317-327. citation: MN, Vidya and Shivakumar, Swarna and Biswas, Siddhartha and S, Vijay Shankar (2011) Olfactory Neuroblastoma: Diagnostic Difficulty. [Journal (On-line/Unpaginated)] document_url: http://cogprints.org/7261/1/2010-4-18.pdf