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Olfactory neuroblastoma

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https://www.readbyqxmd.com/read/28168398/olfactory-neuroblastoma-with-divergent-differentiation-an-unusual-histologic-finding-in-a-rare-tumor
#1
Charles Meyer, Erin R S Hamersley, Rodolfo E Manosalva, Kevin Torske, Nicole McIntyre, Allen Mitchell
Olfactory neuroblastoma (ONB) is a rare malignant neoplasm of the sinonasal tract that arises from olfactory epithelium. There have been reports, mainly in tumors treated with chemoradiation or with distant metastases, describing focal histologic changes of divergent cell populations within archetypal ONB. Only three cases have been reported of ONB coexisting with non-neuroendocrine tumors. We describe our experience with a 35-year-old male with a nasal cavity mass extending into the anterior cranial fossa...
February 6, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28062086/proton-beam-therapy-for-olfactory-neuroblastoma
#2
Naoki Nakamura, Sadamoto Zenda, Makoto Tahara, Susumu Okano, Ryuichi Hayashi, Hidehiro Hojo, Kenji Hotta, Satoe Kito, Atsushi Motegi, Satoko Arahira, Hidenobu Tachibana, Tetsuo Akimoto
PURPOSE: To clarify the efficacy and feasibility of proton beam therapy (PBT) for olfactory neuroblastoma (ONB). METHODS AND MATERIALS: We retrospectively reviewed 42 consecutive patients who received PBT with curative intent for ONB at National Cancer Center Hospital East from November 1999 to March 2012. RESULTS: Five patients (12%) had Kadish A disease, nine (21%) had Kadish B, and twenty-eight (67%) had Kadish C. All patients except one received a total dose of 65Gy (relative biological effectiveness: RBE) in 26 fractions...
January 3, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28060373/small-round-blue-cell-tumors-of-the-sinonasal-tract-a-differential-diagnosis-approach
#3
Lester Dr Thompson
One of the most challenging diagnostic categories within tumors of the sinonasal tract is the small round blue cell tumors. Biopsies are usually small and limited, resulting in considerable diagnostic difficulty for practicing surgical pathologists. These tumors share several overlapping histologic and immunophenotypic findings while also showing considerable variation within and between cases. Specific tumor site of origin, imaging findings, and clinical findings must be combined with the histology and pertinent ancillary studies if the correct diagnosis is to be reached...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28010942/syndrome-of-inappropriate-antidiuretic-hormone-secretion-in-a-case-of-olfactory-neuroblastoma-without-anti-diuretic-hormone-immunoreactivity-a-case-report-and-review-of-the-literature
#4
Takafumi Nakano, Junichi Motoshita, Fumi Sawada, Midori Okabe, Akihiro Tamae, Shinsuke Hiramatsu, Satoru Kodama, Hideki Shiratsuchi, Ryuji Yasumatsu, Torahiko Nakashima, Takashi Nakagawa
Olfactory neuroblastoma (ONB) is a relatively rare nasal or paranasal malignant tumor. This tumor is rarely accompanied by paraneoplastic syndromes such as syndrome of inappropriate antidiuretic hormone secretion (SIADH). Here, we report a 31-year-old female with histologically confirmed ONB who had been diagnosed with SIADH three years prior. She was treated with surgery followed by concurrent chemoradiotherapy. SIADH resolved immediately after surgical tumor resection. Immunohistochemically, both biopsy and resected specimens from the nasal cavity had been negative for ADH...
December 20, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28009611/pituitary-adenomas-presenting-as-sinonasal-or-nasopharyngeal-masses-a-case-series-illustrating-potential-diagnostic-pitfalls
#5
Martin D Hyrcza, Shereen Ezzat, Ozgur Mete, Sylvia L Asa
We present a series of nonectopic pituitary adenomas presenting as polypoid sinonasal or nasopharyngeal masses. Thirteen cases diagnosed by biopsies from the nasal cavity, sinuses, or nasopharynx were identified from a series of 1288 surgical pituitary specimens. The patients included 5 men and 8 women ranging from 29 to 69 years of age. The presentations included nasal obstruction (4 cases), headaches (3), visual defects (2), recurrent nose bleeds (1), rhinorrhea (1), sepsis (1), fatigue (1), and hyperthyroidism (1)...
April 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27917732/olfactory-neuroblastoma-14-year-experience-at-an-australian-tertiary-centre-and-the-role-for-longer-term-surveillance
#6
C Schmidt, N Potter, S Porceddu, B Panizza
BACKGROUND: Olfactory neuroblastoma is a rare sinonasal malignancy, with poorly defined treatment protocols. Management at a tertiary centre was retrospectively evaluated to inform future treatment and follow up. METHODS: Cases treated with curative intent (2000-2014) were included. Data were collected, and overall and disease-free survival rates were calculated. RESULTS: Eleven cases were identified, with a median follow up of 87 months. One patient was Kadish stage A, one was stage B, eight were stage C and one was stage D...
December 5, 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27882120/lutetium-177-dota-tate-therapy-for-esthesioneuroblastoma-a-case-report
#7
Juliano Guerra Sabongi, Mônica Carboni Pereira Gonçalves, Cira Danielle Casado Alves, João Alves, Cristovam Scapulatempo-Neto, Sonia Marta Moriguchi
Esthesioneuroblastoma (ENB), also known as olfactory neuroblastoma, is a rare malignant tumor that accounts for 3% of all tumors of the nasal cavity. The incidence of ENB is 0.4 cases per million in the general population, and the most common symptoms are nasal obstruction and epistaxis. Previous studies have indicated the presence of somatostatin receptors in this tumor type. Common treatment strategies for ENB include resection and adjuvant radiotherapy and/or chemotherapy (combined treatment); however, the rate of recurrence is high...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27879303/smooth-muscle-tumour-of-uncertain-malignant-potential-smtump-in-the-nasal-cavity-an-incidental-finding
#8
Dipak Ranjan Nayak, Asheesh Dora Ghanpur, Apoorva N Reddy, Swati Sharma
Sino-nasal smooth muscle tumours of uncertain malignant potential (SMTUMP) are very rare neoplasms of mesenchymal origin with features in between a benign leiomyoma and a leiomyosarcoma. We report a rare case of SMTUMP in a 44-year-old woman, who presented with vague symptoms of pharyngitis. Nasal endoscopy revealed a smooth mass in left nasal cavity. Contrast-enhanced CT and MRI scans showed features likely to be inverted papilloma or olfactory neuroblastoma or meningioma. Excision was planned and intraoperatively, frozen section revealed a probable spindle cell lesion...
November 22, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27857871/sinonasal-carcinomas-with-neuroendocrine-features-histopathological-differentiation-and-treatment-outcomes
#9
Liuba Soldatova, Raewyn G Campbell, Ricardo L Carrau, Daniel M Prevedello, Paul Wakely, Bradley A Otto, Leo F Ditzel Filho
Objectives Sinonasal cancers with neuroendocrine features share similar clinical, radiological, and histopathological features; however, these tumors often exhibit varying degrees of aggressive behavior presenting significant treatment challenges. The objective of this study was to report our experience with these rare malignancies and to present a review of current literature. Methods Following institutional review board approval, the records of all patients with biopsy-proven sinonasal malignancies over a 5-year period were reviewed...
December 2016: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/27807758/olfactory-ensheathing-cell-conditioned-medium-reverts-a%C3%AE-25-35-induced-oxidative-damage-in-sh-sy5y-cells-by-modulating-the-mitochondria-mediated-apoptotic-pathway
#10
Qing-Qing Fu, Li Wei, Javier Sierra, Jian-Zhang Cheng, María Teresa Moreno-Flores, Hua You, Hua-Rong Yu
Olfactory ensheathing cells (OECs) are a type of glia from the mammalian olfactory system, with neuroprotective and regenerative properties. β-Amyloid peptides are a major component of the senile plaques characteristic of the Alzheimer brain. The amyloid beta (Aβ) precursor protein is cleaved to amyloid peptides, and Aβ25-35 is regarded to be the functional domain of Aβ, responsible for its neurotoxic properties. It has been reported that Aβ25-35 triggers reactive oxygen species (ROS)-mediated oxidative damage, altering the structure and function of mitochondria, leading to the activation of the mitochondrial intrinsic apoptotic pathway...
November 2, 2016: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/27806104/long-term-prognostic-analysis-after-endoscopic-endonasal-surgery-for-olfactory-neuroblastoma-a-retrospective-study-of-13-cases
#11
Luyao Zhang, Kai Niu, Kang Zhu, Cui Xia, Jing Yan, Wei Zhao, Junrong Wei, Maoli Duan, Guoxi Zheng
OBJECTIVES: To summarize the characteristics and long-term outcomes of olfactory neuroblastoma through the analysis of 13 cases in single institution, with the assessment of treatment modality, prognostic factors. METHOD: A retrospective study of thirteen cases diagnosed as olfactory neuroblastoma and underwent combined treatments during the period 2000-2010. Statistical analysis was performed to search for prognostic factors and compared different treatment modalities...
2016: PloS One
https://www.readbyqxmd.com/read/27715372/aggressive-esthesioneuroblastoma-with-divergent-differentiation-a-taxonomic-dilemma
#12
Norman C Charles, Carisa K Petris, Eleanore T Kim
The authors describe an esthesioneuroblastoma (olfactory neuroblastoma) that occurred within the nasal cavity and brain in a 31-year-old man. Following excision, the tumor recurred in the left orbit and in mediastinal lymph nodes. Treatment included orbital excision and systemic chemotherapy. Histopathology showed a high-grade neuroepithelial tumor with positive immunohistochemical markers for neuroendocrine and epithelial components, an unusual combination raising issues concerning taxonomy.
December 2016: Orbit
https://www.readbyqxmd.com/read/27644951/ini1-smarcb1-deficient-sinonasal-carcinoma-a-clinicopathologic-report-of-2-cases
#13
Jason K Wasserman, Brendan C Dickson, Bayardo Perez-Ordonez, John R de Almeida, Jonathan C Irish, Ilan Weinreb
Poorly differentiated sinonasal malignancies are amongst the hardest differential diagnoses in pathology, owing to the large number of rare entities that arise there. Complicating the matter is that most pathologists, including those with experience in head and neck pathology, have little experience in any one of these rare entities. Most patients with sinonasal carcinoma present with locally advanced disease and in the past a combination of chemotherapy, radiotherapy, and surgery would usually be recommended without the specific disease subtype playing a large part of the decision making...
September 19, 2016: Head and Neck Pathology
https://www.readbyqxmd.com/read/27633279/phytochemical-loaded-mesoporous-silica-nanoparticles-for-nose-to-brain-olfactory-drug-delivery
#14
Shital Lungare, Keith Hallam, Raj K S Badhan
Central nervous system (CNS) drug delivery is often hampered due to the insidious nature of the blood-brain barrier (BBB). Nose-to-brain delivery via olfactory pathways have become a target of attention for drug delivery due to bypassing of the BBB. The antioxidant properties of phytochemicals make them promising as CNS active agents but possess poor water solubility and limited BBB penetration. The primary aim of this study was the development of mesoporous silica nanoparticles (MSNs) loaded with the poorly water-soluble phytochemicals curcumin and chrysin which could be utilised for nose-to-brain delivery...
November 20, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27625887/olfactory-neuroblastoma-followed-by-emergency-surgery-for-symptomatic-intradural-spinal-metastasis-a-case-report
#15
Masatoshi Yunoki, Kenta Suzuki, Atsuhito Uneda, Kimihiro Yoshino
BACKGROUND: Olfactory neuroblastoma (ONB) is a rare, aggressive tumor of the nasal cavity. It may invade the paranasal cavities and anterior skull base locally but may also metastasize to the cervical lymph nodes, lungs, or distant central nervous system. CASE DESCRIPTION: Here, we report a case of ONB in which emergency surgery was performed for intradural spinal metastasis (ISM). The patient was a 52-year-old male who underwent surgery for ONB. The tumor extended from the nasal cavity to the intracranial space and was resected completely...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27609444/recurrent-olfactory-neuroblastoma-in-remote-leptomeninges-mimicking-intracranial-meningioma
#16
You-Sub Kim, Shin Jung, Woo-Youl Jang, Kyung-Hwa Lee, Kyung-Sub Moon, In-Young Kim
BACKGROUND: Olfactory neuroblastoma (ONB) is an uncommon neoplasm that arises from olfactory epithelium in the nasal cavity near the cribriform plate. Although local recurrence or direct extension along olfactory epithelium and metastasis to the central nervous system has been reported, remote leptomeningeal metastasis is quite rare. In our report of a leptomeningeal metastasis of ONB without recurrence of primary site, we discuss the possible pathogenesis of this rare phenomenon with a review of the literature...
September 5, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27601919/an-isolated-orbital-mass-with-proptosis-and-diplopia-an-uncommon-metastasis-from-intracranial-olfactory-neuroblastoma-in-a-chinese-patient
#17
Jianqin Shen, Hongguang Cui, Shi Feng
PURPOSE: Olfactory neuroblastoma (ONB) is a rare neuroectodermal malignant neoplasm that originates from the olfactory sensory epithelium. In reported cases involving the orbit, the primary neoplasms could invade the orbits through bone destruction or cranio-orbital communication anatomical structure. The present study reports a rare case of orbital metastatic tumor arising from an intracranial ONB in a Chinese patient, which is the first case demonstrating an uncommon route of ONB involving the orbit...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27576899/relationship-between-18-fdg-pet-and-different-types-of-sinonasal-malignancies
#18
Marylisa Felix-Ravelo, Ayoub Bey, Fabien Arous, Solène Paris-Grandpierre, Roger Jankowski, Duc Trung Nguyen
CONCLUSION: The sensitivity and specificity of a (18)FDG-PET scan may be different according to the histology. The SUVmax and SUV ratio may reflect the tumor's aggressive behavior. OBJECTIVES: To describe the characteristics of PET/CT scans, including the maximum standard uptake values (SUVmax), at initial diagnosis according to six main types of sinonasal malignancies: sinonasal adenocarcinoma (SNAC), sinonasal undifferentiated carcinoma (SNUC), adenoid cystic carcinoma (ACC), sinonasal malignant melanoma (SMM), olfactory neuroblastoma (ONB), and sinonasal neuroendocrine carcinoma (SNEC)...
February 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27543867/expression-pattern-of-isl-1-ttf-1-and-pax5-in-olfactory-neuroblastoma
#19
P Czapiewski, A Gorczyński, J Haybaeck, K Okoń, J Reszeć, W Skrzypczak, J Dzierżanowski, M Kunc, J Karczewska, W Biernat
Olfactory neuroblastoma (ONB) is a rare neoplasm of the sinonasal area with neuroendocrine differentiation. ISL-1, TTF-1 and PAX5 are transcription factors that are frequently upregulated in tumors showing neuroendocrine differentiation. The aim of our study was to evaluate these markers in a group of ONBs. We included 11 ONBs from 4 large university hospitals. Immunohistochemical expression of TTF-1, PAX5 and ISL-1 was evaluated. TTF-1, ISL-1 and PAX5 were expressed in 3/11 cases (27.27%, h-score: 3-45), 7/11 cases (63...
June 2016: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/27449859/-esthesioneuroblastoma-a-single-institution-s-experience-and-general-literature-review
#20
REVIEW
A Lapierre, I Selmaji, H Samlali, T Brahmi, S Yossi
PURPOSE: Olfactory neuroblastoma or esthesioneuroblastoma is a rare entity among head and neck neoplasms. In this paper, we report the experience of our institution and compare it with a comprehensive review of the literature. PATIENTS AND METHODS: We retrospectively analysed clinical and treatment data of patients referred to the Lyon Sud University Hospital (France) for histologically proven olfactive esthesioneuroblastoma. RESULTS: Ten patients treated between 1993 and 2015 have been analysed...
December 2016: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
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