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https://www.readbyqxmd.com/read/29145301/sinonasal-osteoblastomas-in-the-middle-turbinate-two-case-reports
#1
Jong Seung Kim, Sam Hyun Kwon
RATIONALE: Sinonasal osteoblastoma is an extremely rare benign bone-forming tumor. PATIENT CONCERNS: We report 2 extremely rare cases of sinonasal osteoblastoma in the middle turbinate. DIAGNOSES: The preoperative diagnosis was osteoma in the middle turbinate. INTERVENTIONS: We performed endoscopic removal of the mass in the middle turbinate and frontal recess. OUTCOMES: Histological examination of biopsy specimens revealed osteoblastoma...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137081/sinonasal-undifferentiated-carcinoma-originating-from-inverted-papilloma-a-case-report
#2
Jong Seung Kim, Ki Hwan Hong, Kyu Yun Jang, Jong Hoon Song
RATIONALE: Sinonasal inverted papilloma (IP) is a locally aggressive tumor found in the schneiderian membrane, lining the nasal cavity and paranasal sinuses. PATIENT CONCERNS: We report a case of a 63-year-old woman with undifferentiated carcinoma (UC) arising in an IP in the left maxillary sinus. DIAGNOSES: The preoperative diagnosis was IP of the maxillary sinus. INTERVENTIONS: We performed endoscopic medial maxillectomy to remove the remnant mass in the left maxillary sinus...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29101992/acr-appropriateness-criteria-%C3%A2-sinonasal-disease
#3
Claudia F E Kirsch, Julie Bykowski, Joseph M Aulino, Kevin L Berger, Asim F Choudhri, David B Conley, Michael D Luttrull, Diego Nunez, Lubdha M Shah, Aseem Sharma, Vilaas S Shetty, Rathan M Subramaniam, Sophia C Symko, Rebecca S Cornelius
Imaging of sinonasal pathology may occur for assessment of rhinosinusitis or mass lesions. Rhinosinusitis is prevalent in up to 16% of the US population with annual economic burdens estimated at 22 billion dollars. Rhinosinusitis is characterized as acute or chronic based on symptom duration; if four or more episodes occur annually, the term recurrent acute rhinosinusitis (RARS) is used. In acute uncomplicated rhinosinusitis when inflammatory change remains in the paranasal sinuses and nasal cavity, imaging may not be required...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29046788/a-rare-case-of-dedifferentiated-liposarcoma-of-the-sinonasal-cavity-a-case-report
#4
Masaru Miyazaki, Mikiko Aoki, Satoru Oba, Toshifumi Sakata, Takashi Nakagawa, Kazuki Nabeshima
Sarcoma is an uncommon histopathological presentation of sinonasal tumors, comprising ~15% of all cases; liposarcoma is particularly uncommon. An analysis of the available medical literature revealed no prior reports of dedifferentiated liposarcoma (DDLPS) of the sinonasal cavity. This case report presents a rare case of DDLPS of the sinonasal cavity. A 40-year old six-week pregnant female was admitted with a left nasal obstruction. Endoscopic evaluation of the left nasal cavity revealed a polypoid lesion. A computed tomography scan indicated a mass invading the left nasal cavity, maxillary sinus and anterior ethmoid sinus with focal destruction of the surrounding bone...
October 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29041930/renal-cell-like-carcinoma-of-the-nasal-cavity-a-case-report-and-review-of-the-literature
#5
Zhenwei-Chen, Zhaoming-Wang, Hongqi-Shi, Qinwei-Liu
BACKGROUND: Sinonasal renal cell-like carcinoma (SRCLC) is an extremely rare low malignant tumor arising in the sinonasal tract, with histological mimicry of renal cell carcinoma. CASE PRESENTATION: We present a case of sinonasal renal cell-like carcinoma in a 63-year-old male patient. Computer tomography(CT) scanning revealed a soft tissue mass at the left nasal cavity and choana. Histologically, the predominant tumor architecture was follicular to glandular with intervening fibrous septa...
October 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/29038635/pleomorphic-adenoma-of-soft-palate-unusual-occurrence-of-the-major-tumor-in-minor-salivary-gland-a-case-report-and-literature-review
#6
Deepak Passi, Hari Ram, Shubha Ranjan Dutta, Laxman Revansidha Malkunje
Salivary gland tumours constitute about less than 4 % of all head and neck tumours. Pleomorphic adenoma, also called benign mixed tumour, is the most common tumour of the salivary glands. About 80-90 % of these tumours occur in the major salivary glands mainly parotid gland and 10 % of them occur in the minor salivary glands. The most common site for pleomorphic adenoma of the minor salivary glands is the palate, followed by the lips and the cheeks. Other rare sites include the floor of the mouth, tongue, tonsil, pharynx, retromolar area and the nasal cavity...
December 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/29019747/masses-of-the-nose-nasal-cavity-and-nasopharynx-in-children
#7
Diana P Rodriguez, Emily S Orscheln, Bernadette L Koch
A wide range of masses develop in the nose, nasal cavity, and nasopharynx in children. These lesions may arise from the nasal ala or other structures of the nose, including the mucosa covering any surface of the nasal cavity, the cartilaginous or osseous portion of the nasal septum, the nasal turbinates, and the nasal bones. Lesions may also arise from the nasopharynx or adjacent structures and involve the nose by way of direct extension. The causes of nasal masses in children include congenital and developmental disorders such as congenital nasolacrimal duct mucocele, dermoid cyst, cephalocele, and nasal neuroglial heterotopia; inflammatory and infectious processes such as mucocele, polyp, and pyogenic granuloma; benign neoplasms such as infantile hemangioma and juvenile nasopharyngeal angiofibroma; malignant lesions such as rhabdomyosarcoma and nasopharyngeal carcinoma; and masses related to prior trauma such as septal hematoma...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28980593/-cfd-simulation-of-the-air-flows-in-the-maxillary-sinus
#8
D A Shcherbakov, A I Krukov, V N Krasnozhen, Yu A Garskova, I I Saushin
This article summarizes the results of computer simulation of the air flows in the nasal cavity and the maxillary sinus by the computational fluid dynamics (CFD) method. The objective of the study was to apply the method of computational aerodynamics to simulate the air flows in the nasal cavity and the maxillary sinus under the normal conditions and after the surgical interventions on the middle nasal meatus. The normal air space of the nasal cavity and paranasal sinuses was simulated and the computer modeling of the main options for the surgical approach to the maxillary sinus through the middle nasal meatus was performed including balloon sinuplasty, functional endoscopic sinus surgery, and uncinate process mobilization...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28955676/a-rare-cause-of-intranasal-mass-bilateral-ectopic-nasal-teeth
#9
Hasan-Emre Koçak, Kadir Özdamar, Bekir Bilgi, Harun Acıpayam
INTRODUCTION: Ectopic teeth occur in a wide variety of sites, including the maxillary sinus, mandibular condyle, coronoid process, orbital, and nasal cavities. Reported symptoms and signs associated with nasal teeth include facial pain, external nasal deformities, foul-smelling rhinorrhea, recurrent epistaxis, and oronasal fistula. Ectopic teeth occurring bilaterally in the nasal cavity is very very rare. CASE REPORT: A bilateral intranasal ectopic teeth case, which is asymptomatic on the right side and symptomatic on the left side, is presented...
September 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28952254/-screen-absorption-enhancer-for-intranasal-administration-preparations-of-paeoniflorin-based-on-nasal-perfusion-method-in-rats
#10
Zhi-Tao Zhu, Jin-Huo Pan, Xian-Hui Wu, Zhi-Tao Jiang
This experiment was aimed to screen the absorption enhancer for intranasal administration preparations of paeoniflorin. In this study, HPLC method for determination of paeoniflorin in perfusion liquid was established and the improved model of nasal perfusion in rats was used to screen out the species and amounts of absorption enhancer. In order to avoid the influence of the secretion and absorption of nasal cavity on the volume of perfusion fluid, the residual dose was calculated by using the volume correction method...
February 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28948459/nut-midline-carcinoma-a-series-of-five-cases-including-one-with-unusual-clinical-course
#11
Aanchal Kakkar, Vijay Mariadas Antony, David Victor Kumar Irugu, Narayan Adhikari, Deepali Jain
NUT midline carcinomas (NMCs) are rare, poorly differentiated tumors with aggressive biological behavior and a characteristic molecular signature. Availability of NUT antibody has facilitated diagnosis of NMC without molecular testing. We report a series of head and neck NMCs diagnosed using NUT IHC at our institute, including one case with an unusual course. Immunohistochemistry for NUT was performed in nasal and sinonasal tumors with diagnoses of undifferentiated carcinoma, poorly differentiated squamous cell carcinoma and malignant neoplasm, not otherwise specified, to identify cases of NMC...
September 25, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28946910/primary-paranasal-sinus-hyalinizing-clear-cell-carcinoma-a-case-report
#12
Batool M AlAli, Mohammed J Alyousef, Ahmad Salah Kamel, Mohammad A Al Hamad, Mohammad H Al-Bar, Roaa M Algowiez
BACKGROUND: Hyalinizing clear cell carcinoma (HCCC) is a rare low-grade tumour of salivary glands that was first described as a distinct entity in 1994 by Milchgrub et al. EWSR1-ATF1 fusion was found to be specific for this tumour. The majority of the reported cases of HCCC arise from minor salivary glands within the oral cavity. Primary HCCC of the paranasal sinus is extremely uncommon. To our knowledge, only three cases have been reported in the English literature. Herein, we present a case of HCCC of the posterior ethmoid/maxillary sinus...
September 25, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28937379/nasal-angiomyolipoma-report-of-two-cases-of-an-extremely-rare-entity
#13
Mohammed Abdul Aleem, Ather Fatima, P Kumudachalam, Ramya Priyadarshini
Nasal angiomyolipoma (AML) are extremely rare tumors and so far <15 cases have been reported in the literature, and this is the first instance that Nasal AML is reported from India. We report two cases of AML arising in the nasal cavity described in 60-year-old male and 50-year-old female patient. Grossly, they were well circumscribed, lobulated masses, and microscopically, they were composed of an intimate mixture of mature fat, smooth muscle cells, and thick-walled varying sized blood vessels. Immunoexpression pattern and histopathology were characteristic...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28892915/myeloid-sarcoma-presenting-as-nasal-and-orbital-mass-an-initial-manifestation-of-an-acute-myeloid-leukaemia
#14
Amita Jain Gupta, Shramana Mandal, Richa Gupta, Nita Khurana, Achal Gulati
Myeloid sarcoma is an extramedullary manifestation of Acute Myeloid Leukaemia and sometimes is the only indicator of the disease. The incidence varies between 3-9.1% of acute leukaemia cases. The blast infiltration is seen most commonly in skin, lymph node, gastrointestinal tract, bone, soft tissue though can involve any body site usually as a solitary lesion and is rarely seen in nasal cavity. We present two cases of myeloid sarcoma presenting as a nasal mass in a six year old girl and other as orbital mass in 32-year-old as an initial manifestation of acute myeloid leukaemia...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28875443/sinonasal-tract-alveolar-rhabdomyosarcoma-in-adults-a-clinicopathologic-and-immunophenotypic-study-of-fifty-two-cases-with-emphasis-on-epithelial-immunoreactivity
#15
Lester D R Thompson, Vickie Y Jo, Abbas Agaimy, Antonio Llombart-Bosch, Gema Nieto Morales, Isidro Machado, Uta Flucke, Paul E Wakely, Markku Miettinen, Justin A Bishop
Sinonasal tract (SNT) alveolar rhabdomyosarcoma (ARMS) are frequently misdiagnosed, especially in adults. Fifty-two adult (≥18 years) patients with SNT ARMS were reviewed and characterized by immunohistochemistry and molecular studies. Twenty-six females and 26 males (18-72 years; mean 43.2 years), presented after a short duration (mean 2.6 months) with a large (mean 5.5 cm) destructive nasal cavity mass, involving multiple contiguous paranasal sites (n = 46) and with cervical adenopathy (n = 41)...
September 5, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28874193/extranodal-nasal-type-natural-killer-t-cell-lymphoma-with-penile-involvement-a-case-report-and-review-of-the-literature
#16
Xiaotian Wang, Zimu Gong, Shawn Xiang Li, Wei Yan, Yongsheng Song
BACKGROUND: Extranodal natural killer/T-cell lymphoma (ENKTL) usually presents as a localized disease in the nasal cavity; extension to the male genitourinary system is very rare and has been characterized only recently. Most cases present with predominantly extranodal involvement, advanced stage disease, highly aggressive course, and strong association with Epstein-Barr virus (EBV). While metastasis is common in ENKTLs, the penis is rarely involved in both nasal and non-nasal ENKTLs and only one report was published to date...
September 6, 2017: BMC Urology
https://www.readbyqxmd.com/read/28872497/myoepithelioma-of-the-nasal-septum
#17
Seo Bin Kim, Jae Hwan Kwon
Myoepithelioma is defined as myoepithelial cells composed of tumor with solid, myxoid, and reticular growth pattern by the World Health Organization. It is a rare neoplasm that arises in the major salivary gland or minor salivary gland comprising approximately 1% of all salivary gland tumor. This neoplasm occurs in the parotid gland and soft palate mostly, which can be found in other organs. However, up to now, myoepithelioma of nasal septum has not been reported in English medical literature. Histologically, it is grouped as spindle, epitheliod, reticular, and clear cell types...
October 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28858104/oral-and-maxillofacial-non-hodgkin-lymphomas-case-report-with-review-of-literature
#18
Da Deng, Ying Wang, Weisong Liu, Yong Qian
RATIONALE: Lymphomas take up about 14% of all head-neck malignancies, out of which 97% are non-Hodgkin lymphomas (NHL). The clinical courses, treatment responses, and prognoses of NHLs vary with different subtypes and anatomic sites. In the Chinese population (including the Taiwanese), head-neck NHLs are often seen with the tonsils, nasal cavity, nasal sinus, and the nasopharynx. However, oral NHLs are relatively rare. Delay of diagnosis is also often seen in clinical practice. Thus, we present 4 cases with delayed diagnosis of oral maxillofacial NHLs and discuss their clinical manifestations so as to draw a clue that can remind the doctors to take biopsies in time...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28857999/transnasal-endoscopic-resection-of-a-pleomorphic-adenoma-originate-from-nasal-floor
#19
Yesun Cho, Yul Gyun Kim, Eunhye Shin, Boo-Young Kim
A 81-year-old female presented to our hospital frequent epistaxis. Nasal endoscopy showed a mass obstructing nasal cavity completely and occupying middle meatus. Magnetic resonance imaging was performed, an about 4.8 × 4 × 4.2 cm sized heterogeneous T2 high signal intensity and T1 enhancing mass mainly involving right nasal cavity with invasion of right hard palate with bony destruction. Therefore, the authors planned to do endoscopic mass excision, under general anesthesia for diagnosis and treatment...
October 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28841759/quantification-of-six-potential-unspecific-human-biomarkers-of-1-vinyl-2-pyrrolidone-exposure-in-sprague-dawley-rat-urine-using-gas-chromatography-coupled-with-triple-mass-spectrometry
#20
J Bertram, T Schettgen, T Kraus
RATIONALE: The monomer 1-vinyl-2-pyrrolidone (VP) is a substance with excellent solvent features. It is used in a wide variety of pharmaceutical, cosmetic, food industrial or technical applications and produced on an industrial scale. Since VP has caused adenocarcinoma of the nasal cavity and liver cell carcinoma in long-term experiments with rats, a human biomarker would be appreciated for risk assessment. METHODS: A sensitive analytical electron ionization gas chromatography/tandem mass spectrometry (GC/MS/MS) method for the determination of six possible biomarkers for VP in urine was established and validated...
November 15, 2017: Rapid Communications in Mass Spectrometry: RCM
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