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Paranasal sinus tumors

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https://www.readbyqxmd.com/read/29019028/application-of-a-full-model-based-iterative-reconstruction-mbir-in-80%C3%A2-kvp-ultra-low-dose-paranasal-sinus-ct-imaging-of-pediatric-patients
#1
Jihang Sun, Qifeng Zhang, Xiaomin Duan, Chengyue Zhang, Pengpeng Wang, Chenguang Jia, Yong Liu, Yun Peng
OBJECTIVE: To evaluate the clinical application of a full model-based iterative reconstruction (MBIR) algorithm in the ultra-low-dose paranasal sinus CT imaging of children. MATERIALS AND METHODS: In the first phase, 16 low-dose CT dacryocystography (DCG) (80 kV/64 mAs) scans were reconstructed with MBIR and filtered back-projection (FBP) to demonstrate noise reduction capability of MBIR. MBIR images were also compared with the images of 21 standard-dose paranasal sinus patients reconstructed with adaptive statistical iterative reconstruction (ASIR) algorithm...
October 10, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28932042/small-cell-neuroendocrine-carcinoma-of-the-paranasal-sinus-with-intraoral-involvement-report-of-a-rare-case-and-review-of-the-literature
#2
Anita Spadigam, Anita Dhupar, Shaheen Syed, Shruti U Nagvekar
The diffuse neuroendocrine system continues to be an enigmatic topic of study in pathology due to its controversial embryologic origins, biology and a variety of tumors engendered. Originally thought to be localized to the classic neuroendocrine organs (pituitary, thyroid, pancreas and adrenal medulla), the neuroendocrine cells are now known to be distributed in every organ system of the body. A number of human diseases have been linked to aberrations in the functioning of the neuroendocrine cells. Neoplasms of the neuroendocrine system can thus occur in myriad primary sites and range in behavior from benign to lethal...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28893000/detection-of-dental-pathologies-in-routine-paranasal-ct-scans-a-retrospective-study
#3
Erdogan Bulbul, Bahar Yanik, Gulen Demirpolat
INTRODUCTION: Multidetector Computed Tomography (MDCT) is a widespread method for evaluating paranasal sinuses and nasal cavity in daily practice. The maxillary teeth are in field of view in a paranasal sinus CT scan and it is possible to detect dental pathologies with CT. AIM: To determine the incidence of maxillary teeth pathologies in routine paranasal sinus CT scans. MATERIALS AND METHODS: A retrospective study was conducted. Consecutive 395 paranasal sinus CT scans were evaluated...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28877060/clinicopathologic-diversity-of-undifferentiated-sarcoma-with-bcor-ccnb3-fusion-analysis-of-11-cases-with-a-reappraisal-of-the-utility-of-immunohistochemistry-for-bcor-and-ccnb3
#4
Atsuji Matsuyama, Eisuke Shiba, Yoshihisa Umekita, Kanae Nosaka, Takihiro Kamio, Hiroyuki Yanai, Chika Miyasaka, Reiko Watanabe, Ichiro Ito, Tomoko Tamaki, Shinichi Hayashi, Masanori Hisaoka
Undifferentiated sarcoma harboring the BCOR-CCNB3 fusion is characterized by its predilection to affect skeletons of adolescent males, cellular small round/spindle cell morphology, and CCNB3 immunoreactivity. We analyzed 11 cases of BCOR-CCNB3 sarcoma, 10 of which were identified in a reverse transcription-polymerase chain reaction-based screen of 85 patient samples recorded in our database as unclassified small round or spindle cell sarcomas. BCOR rearrangements were confirmed by fluorescence in situ hybridization in 8 tumors...
September 4, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28872554/detection-of-non-fdg-avid-residual-sinonasal-malignant-melanoma-in-the-skull-base-with-11c-choline-pet-and-contrast-enhanced-mri
#5
Chunxia Qin, Fan Hu, Maher Mohamad Rajab Arnous, Xiaoli Lan
Primary sinonasal melanoma is a rare disease. We present a case of melanoma in sinuses without abnormal F-FDG activity anywhere in the scanned portion of the body. In further assessment, C-choline PET/CT revealed high activity in the paranasal sinuses, skull base, and adjacent brain, in agreement with the high signal on contrast-enhanced T1-weighted MRI scan, which suggested the residual tumor.
September 1, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28871995/a-multicenter-study-of-carbon-ion-radiation-therapy-for-head-and-neck-adenocarcinoma
#6
MULTICENTER STUDY
Jun-Ichi Saitoh, Masashi Koto, Yusuke Demizu, Hiroaki Suefuji, Tatsuya Ohno, Hiroshi Tsuji, Tomoaki Okimoto, Yoshiyuki Shioyama, Kenji Nemoto, Takashi Nakano, Tadashi Kamada
PURPOSE: Head and neck (HN) adenocarcinoma is rare, and to date, there have been no reports of prospective studies. We retrospectively evaluated the efficacy and safety of carbon-ion radiation therapy (C-ion RT) for HN adenocarcinoma in institutions in Japan. METHODS AND MATERIALS: HN adenocarcinoma patients with N0M0 or N1M0 disease who were treated with C-ion RT at institutions in Japan between November 2003 and December 2014 were analyzed retrospectively. We enrolled 47 patients (30 male and 17 female patients; median age, 60 years) with HN adenocarcinoma...
October 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28868197/combined-simultaneous-transcranial-and-endoscopic-endonasal-resection-of-sphenoorbital-meningioma-extending-into-the-sphenoid-sinus-pterygopalatine-fossa-and-infratemporal-fossa
#7
Masahide Matsuda, Hiroyoshi Akutsu, Shuho Tanaka, Akira Matsumura
BACKGROUND: Sphenoorbital meningiomas are surgically challenging because of their nature to extend to adjacent structures. Here, we describe a case of recurrent sphenoorbital meningioma extending into the sphenoid sinus, pterygopalatine fossa, and infratemporal fossa, which was resected using combined simultaneous transcranial and endoscopic endonasal approaches. CASE DESCRIPTION: A 62-year-old man who had 15 years earlier undergone partial resection of a left sphenoorbital meningioma presented with a 1-year history of progressive proptosis of the left eye...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28767609/sinonasal-renal-cell-like-adenocarcinoma-a-unique-variant-of-primary-clear-cell-carcinoma-of-the-head-and-neck-the-first-reported-case-in-korea
#8
Nah-Ihm Kim, Jung-In Yang, Sung-Sun Kim, Ji-Shin Lee, Sang-Chul Lim, Shin Jung, Jae-Hyuk Lee, Kyung-Sub Moon, Kyung-Hwa Lee
RATIONALE: Primary sinonasal renal cell-like adenocarcinoma (SNRCLA) is a rare and unique neoplasm. PATIENT CONCERNS: A 63-year-old man presented with repeated epistaxis, nasal obstruction and hyposmia of 2-month duration. Radiological studies revealed a mass of the left ethmoid sinus involving anterior skull base. DIAGNOSIS: The patient was treated with craniofacial resection, bifrontal craniotomy combined with an endonasal endoscopic approach...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28749194/results-of-preoperative-chemoradiotherapy-for-patients-with-advanced-cancer-of-the-nasal-cavity-and-paranasal-sinuses
#9
Erik Fernström, Jan Nyman, Eva Hammerlid, Erik Holmberg, Hedda Haugen-Cange, Karin Petruson, Edvard Abel, Thomas Björk-Eriksson
OBJECTIVES: Curative treatment of nasal cavity and paranasal sinus cancer is challenging due to the proximity to critical anatomical structures. The purpose of this study was to analyze the impact of trimodality therapy with preoperative chemotherapy and reduced-dose radiotherapy followed by organ-preserving surgery for treating patients with nasal cavity and paranasal sinus cancer. METHODS: This retrospective study included all 156 patients diagnosed with sinonasal cancer in western Sweden between 1986 and 2009...
December 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28739401/a-review-of-nasal-paranasal-and-skull-base-tumors-invading-the-orbit
#10
REVIEW
Morten Jørgensen, Steffen Heegaard
Tumors that invade the orbit are uncommon. The majority are meningiomas arising from the sphenoid ridge (66%). Others are bone and cartilage tumors arising from the surrounding bones of the orbit, pituitary adenomas, and epithelial tumors arising from the paranasal sinuses and nasal cavity. Meningiomas occur more often in women, whereas epithelial tumors have a predilection for men. Meningiomas and epithelial tumors typically present in the sixth decade of life, whereas bone tumors tend to affect individuals in their third decade of life...
July 22, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28738798/efficacy-of-sellar-opening-in-the-pituitary-adenoma-resection-of-transsphenoidal-surgery-influences-the-degree-of-tumor-resection
#11
Shousen Wang, Yong Qin, Deyong Xiao, Liangfeng Wei
BACKGROUND: Endonasal transsphenoidal microsurgery is often adopted in the resection of pituitary adenoma, and has showed satisfactory treatment and minor injuries. It is important to accurately localize sellar floor and properly incise the bone and dura matter. METHODS: Fifty-one patients with pituitary adenoma undergoing endonasal transsphenoidal microsurgery were included in the present study. To identify the scope of sellar floor opening, CT scan of the paranasal sinus and MRI scan of the pituitary gland were performed for each subject...
July 24, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28693263/role-of-microrna-296-3p-in-the-malignant-transformation-of-sinonasal-inverted-papilloma
#12
Tomohiko Kakizaki, Hiromitsu Hatakeyama, Yuji Nakamaru, Dai Takagi, Takatsugu Mizumachi, Tomohiro Sakashita, Satoshi Kano, Akihiro Homma, Satoshi Fukuda
Inverted papilloma (IP) is a benign tumor occurring in the nasal cavity and paranasal sinuses. It is reported that 5-15% of IPs undergo malignant transformation into squamous cell carcinoma (SCC), and the role of microRNAs (miRNA/miR) in this process remains to be elucidated. In the present study, whole miRNA profiles using samples of IP and SCC were investigated, in order to detect the function of miRNA in the carcinogenesis of IP. Samples from IPs (n=5) and SCC lesions (n=5), which arose from IPs, were used for miRNA analysis...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28669965/-clinical-features-of-advanced-adenoid-cystic-carcinoma-in-the-nasal-cavity-and-paranasal-sinuses-analysis-of-21-cases
#13
Hui-Gang Wang, Cong-Xiang Shen, Fang Chen, Guan-Xue Li, Xiao-Qi Wang, Zhong Wen
OBJECTIVE: To evaluate the clinical characteristics, treatment and prognosis of advanced adenoid cystic carcinoma (ACC) in the nasal cavity and paranasal sinuses. METHODS: Twenty-one patients with advanced ACC in the nasal cavity and paranasal sinuses were treated in our department between February, 2007 and May, 2016. The clinical manifestations, T-stage, N-status, treatment, histological grade, recurrence and distant metastasis of the tumors were analyzed. Univariate survival analysis was performed with Kaplan-Meier method and Log-rank test, and the factors affecting the prognosis of the patients were explored using multivariate analysis with Cox proportional hazard model...
June 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28635990/neuroendocrine-neoplasms-of-the-head-and-neck-and-olfactory-neuroblastoma-diagnosis-and-classification
#14
S Uccella, G Ottini, C Facco, R Maragliano, S Asioli, F Sessa, S La Rosa
Neuroendocrine neoplasms (NENs) of the head and neck are a rare group of heterogeneous epithelial neoplastic proliferations arising in virtually all of the different organs of this region, particularly in the nasal cavity, the paranasal sinuses, the nasopharynx, the larynx, the salivary glands, and the middle ear. They encompass a wide spectrum of entities ranging from very indolent neuroendocrine tumors to highly aggressive neuroendocrine carcinomas. They may represent a challenge for radiologists, oncologists, and pathologists and a correct diagnosis is crucial for the management of patients...
March 2017: Pathologica
https://www.readbyqxmd.com/read/28626415/a-case-of-childhood-onset-giant-cell-tumor-that-caused-optic-nerve-atrophy-in-both-eyes
#15
Masahiro Tonari, Junko Matsuo, Hidehiro Oku, Jun Sugasawa, Tsunehiko Ikeda, Kazunori Tatsuzawa, Tomoaki Fujita
PURPOSE: The purpose of this study was to report the case of a female patient who had a giant cell tumor in the paranasal sinus during childhood, and while undergoing multiple resection surgeries experienced optic atrophy in both eyes. CASE PRESENTATION: This study involved a 35-year-old woman who was previously diagnosed with a giant cell tumor of the paranasal sinus bone at age 13. A CT scan revealed a large tumor extending from the sphenoid sinus to the ethmoid sinus...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28624428/undifferentiated-sarcoma-of-the-sphenoid-sinus
#16
Masaya Nagaishi, Kensuke Suzuki, Yoshiki Sugiura, Issei Takano, Yoshihiro Tanaka, Akio Hyodo
Paranasal sinuses sarcomas are rare and no treatments have been established. We report a young-adult case of sphenoid sinus sarcoma treated by carbon-ion radiotherapy. The patient presented with progressive left-sided visual impairment. A tumor was then identified and partial resection by transnasal approach was performed. The resected mass showed typical morphology of mesenchymal tumor, and morphological and molecular analyses ruled out a predominant-differentiation phenotype. The pathological diagnosis was undifferentiated sarcoma...
June 14, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28620574/complications-of-advanced-kadish-stage-esthesioneuroblastoma-single-institution-experience-and-literature-review
#17
Sheri K Palejwala, Saurabh Sharma, Christopher H Le, Eugene Chang, Michael Lemole
INTRODUCTION: In esthesioneuroblastoma, greater disease extent and Kadish staging correlate with greater recurrence, complications, and mortality. These advanced stage malignancies require extensive resections and aggressive adjuvant therapy. This increases the risk of complications such as cerebrospinal fluid leak, neurologic deficits, and osteomyelitis. We present our case series and then analyze the literature to ascertain whether advanced stage tumors corresponds to greater rates of complications...
May 12, 2017: Curēus
https://www.readbyqxmd.com/read/28608188/-hiv-associated-plasmablastic-lymphoma-of-the-paranasal-sinuses-an-incidental-finding
#18
V Weber, K Helling, C Matthias
A 48-year-old female patient presented to the ENT department of the University Medical Center of the Johannes Gutenberg University Mainz with subfebrile temperatures, one-sided nasal obstruction, and left-sided cephalgia. Clinical examination and CT scans showed a mass occupying the left nasal cavity and left paranasal sinuses. Further diagnosis and histopathological examination showed an HIV-associated plasmablastic lymphoma of the left paranasal sinuses. This case report with literature review discusses the diagnosis and treatment of this rare nasal tumor...
June 12, 2017: HNO
https://www.readbyqxmd.com/read/28607817/a-rare-case-report-of-mixed-olfactory-neuroblastoma-carcinoma-with-review-of-literature
#19
Charandeep S Gandhoke, Aditi Dewan, Divya Gupta, Simran K Syal, Anita Jagetia, Ravindra K Saran, Ravi Meher, Arvind K Srivastava, Daljit Singh
BACKGROUND: Olfactory neuroblastoma (ONB) is a rare malignant neuroectodermal tumor of the nasal cavity. Mixed olfactory neuroblastoma which contains areas of divergent differentiation is even rare. Till date, only 4 cases of mixed olfactory neuroblastomas have been reported. CASE DESCRIPTION: We report the case of a 46-year-old male who presented with the chief complaints of nasal bleeding and nasal obstruction since 4 months. Radiological imaging was suggestive of a large heterogeneous mass in the left superior nasal cavity with extensions into bilateral maxillary, ethmoidal, and sphenoidal sinuses, as well as into the anterior cranial fossa...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28598460/hypercalcemia-due-to-nasopharyngeal-carcinoma
#20
S Chaudhary, J P Sah
Hypercalcemia is a rare metabolic disorder associated with hyperparathyroidism, malignancy and various other causes. Although common in adult malignancies, hypercalcemia is rare in pediatrics and purports poor prognosis. Nasopharyngeal carcinoma is rare with no reported hypercalcemic presentation. We present here a case of hypercalcemia in a child of nasopharyngeal carcinoma. A 10 year girl presented with backache for 1 month, epistaxis, cough, chest-pain for 1 week alongwith anorexia and weight loss. Investigations revealed anemia and hypercalcemia (23mg/dl; normal range 9-11 mg/dl) with hyperphosphatemia, normal parathyroid levels...
January 2017: JNMA; Journal of the Nepal Medical Association
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