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Inverted papilloma

B T Yang, Y Z Wang, F R Sun, J Y Dong
AIM: To investigate the key imaging points in distinguishing ossifying inverted papilloma (IP) from polyps. MATERIALS AND METHODS: The native computed tomography (CT), conventional and enhanced MRI manifestations of 20 ossifying IPs and eight polyps, which were confirmed histopathologically, were retrospectively evaluated by two doctors majoring in head and neck imaging. RESULTS: A significant difference was detected between the two entities for the involved sites (p<0...
October 20, 2016: Clinical Radiology
Alexandra Elliot, Linda Marklund, Niclas Håkansson, Huan Song, Weimin Ye, Pär Stjärne, Lalle Hammarstedt-Nordenvall
The true incidence of inverted papilloma (IP) is not yet known. From hospital-based studies, its incidence has been estimated to approximately 0.5/100,000 person years. Earlier hospital case studies have shown that IP can undergo a malignant transformation in 1-53 %. The frequency of its malignant transformation on a population basis is unknown. To our knowledge, no standardised incidence ratio (SIR) has been reported for malignancies among IPs. This study aims to investigate these incidences on a population basis...
October 18, 2016: European Archives of Oto-rhino-laryngology
Satoshi Koyama, Yosuke Nakamura, Yuko Yokoyama, Tsuyoshi Morisaki, Takahiro Fukuhara, Kazunori Fujiwara, Hiroya Kitano, Hiromi Takeuchi
Basaloid squamous cell carcinoma (BSCC) is a histologically distinctive variant of squamous cell carcinoma comprising basal cell carcinoma and squamous cell carcinoma. BSCC is aggressive and shows a poor prognosis because of frequent lymph node invasion and distant metastases. BSCC preferentially occurs in the cervix, thymus, and esophagus and is uncommonly found in the head and neck region. BSCC in the nasal cavity or paranasal sinus is particularly rare. Inverted papilloma is an uncommon, benign tumor with a propensity to be associated with malignancy; however, BSCC arising in an inverted papilloma has never been reported...
October 6, 2016: Auris, Nasus, Larynx
F V W J van Zijl, D A Monserez, T I M Korevaar, O Bugter, M H Wieringa, R J Baatenburg de Jong, J A U Hardillo
:  OBJECTIVES: Sinonasal inverted papilloma (IP) has several unfavorable characteristics and therefore requires careful monitoring. The goal of this study was to identify whether serum squamous cell carcinoma antigen (SCCa) could predict IP recurrence. DESIGN: A retrospective cohort study. SETTING: Department of otolaryngology/head and neck surgery, Erasmus Medical Centre, Rotterdam, the Netherlands. PARTICIPANTS: 130 patients with IP treated at our centre with SCCa measurements available were included...
September 26, 2016: Clinical Otolaryngology
Petros V Vlastarakos, Thomas Georgiadis, Sophia Boutsi, Ilias Konstantopoulos
No abstract text is available yet for this article.
July 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
Y H Zhao, H G Liu
OBJECTIVE: To study the clinicopathologic features, immunophenotype, differential diagnosis and prognosis of non-keratinizing carcinoma of nasal cavity and paranasal sinus. METHODS: Four hundred and forty-one cases of squamous cell carcinoma of the nasal cavity and sinuses diagnosed in Beijing Tongren Hospital from January 2008 to August 2015 were included. Twenty-six cases of non-keratinizing carcinomas were selected. The histopathologic features and the clinicopathologic data of these twenty-six cases were retrospectively analyzed...
September 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Sara E Wobker, Manju Aron, Jonathan I Epstein
In the upper genitourinary tract of the ureter and renal pelvis, any invasion of urothelial carcinoma (UC) beyond the thin muscularis is considered pT3 disease, which may prompt adjuvant chemotherapy. Ureteroscopy is commonly used in the workup of these lesions to obtain tissue biopsies and cytology specimens, or to place stents for the relief of obstructive symptoms. The current study describes 4 cases in which the presence of small nests of urothelium in periureteral and peripelvic soft tissue was noted after ureteroscopic instrumentation, mimicking high-stage UC...
September 14, 2016: American Journal of Surgical Pathology
Sayee Sundar Alagusundaramoorthy, Abhinav Agrawal
Papillomas are known to occur in the lower respiratory tract. They are however, rare compared to their occurrence in the upper respiratory tract. These are generally exophytic tumors in the more proximal upper airways however cases with more distal location with an inverted growth pattern have also been described in the literature. These can be solitary or multiple and multifocality associated with multiple papillomas in the upper respiratory/aerodigestive tract. The four major types of respiratory papillomas are (1) Recurrent respiratory papillomas, (2) solitary squamous papillomas, (3) solitary glandular papillomas, (4) mixed papillomas...
September 2016: Lung India: Official Organ of Indian Chest Society
Linggai Shi, Jun Liu, Jiqing Ma, Fei Liu, Guangke Wang
Treatment of frontal sinus using surgery is complicated owing to the complex anatomical structure of the sinus region. The aim of the present study was to investigate the efficacy and safety of Draf IIb endoscopic frontal sinus surgery treatment for frontal sinus lesions using the agger nasi approach on 19 patients (28 left or and right nasal cavities). A 10-12 mm excision of the upper frontal maxilla was performed for endoscopic resection between the middle turbinate and lateral nasal wall. No serious complications in frontal sinus surgery treatment for the removal of the frontal sinus were observed...
September 2016: Experimental and Therapeutic Medicine
Sara E Wobker, Minghao Zhong, Jonathan I Epstein
We report 13 cases of unique polypoid urothelial tumors with inverted growth pattern (PUTIP) occurring in the proximal ureter and renal pelvis. We describe their morphologic features and further characterize them in regard to TERT promoter mutation status and microsatellite instability. 13 cases were identified in our consult archives from 1994 to present. Patients ranged in age from 52 to 83 years old at the time of diagnosis (mean=68.4 years). Grossly, lesions were described variously as pink-tan to white exophytic and friable lesions that were polypoid or pedunculated, located in the renal pelvis or proximal ureter...
August 26, 2016: Human Pathology
Gaoli Fang, Hongfei Lou, Wenling Yu, Xiangdong Wang, Bentao Yang, Junfang Xian, Xiaohong Song, Erzhong Fan, Ying Li, Chengshuo Wang, Luo Zhang
BACKGROUND: Precise localization and excision of the originating site of a sinonasal inverted papilloma (SNIP) is essential for decreasing tumor recurrence. In this study we evaluated the use of preoperative computed tomography (CT) and magnetic resonance imaging (MRI) to pinpoint the attachment/originating sites of SNIPs in 143 patients. METHODS: Osteitis signs in CTs and convoluted cerebriform pattern (CCP)-based reverse tracings from MRIs of 143 SNIP patients were analyzed preoperatively to predict the originating site of SNIPs...
August 25, 2016: International Forum of Allergy & Rhinology
Lokman Uzun, Seyma Ozkanli, M Tayyar Kalcioglu, Numan Kokten, Cigdem Kafkasli
No abstract text is available yet for this article.
July 30, 2016: Brazilian Journal of Otorhinolaryngology
Jong Seung Kim, Sam Hyun Kwon
OBJECTIVES/HYPOTHESIS: Inverted papilloma (IP) is a rare benign tumor, which is found in the sinonasal area. It is characterized by recurrence, local destruction, and malignant change. Of these, recurrence is a challenging problem to many otolaryngologists. In this study, we evaluated recurrence based on the type of surgical approach using a meta-analysis. STUDY DESIGN: MEDLINE, Embase, and Cochrane database. METHODS: Relevant studies were identified by searching the following databases: MEDLINE, Embase, and Cochrane through February 2016...
August 17, 2016: Laryngoscope
Michitsugu Kawada, Hidenori Yokoi, Keisuke Maruyama, Yuma Matsumoto, Hidetaka Yamanaka, Tetsuya Ikeda, Yoshiaki Shiokawa, Koichiro Saito
We report a patient who had rhinogenic intracranial complication with postoperative frontal sinus pyocele and inverted papilloma in the nasal cavity. A 72-year-old woman had undergone surgery for frontal sinusitis via external incision at another hospital 13 years previously. Left-sided hemiparesis appeared in the patient and gradually worsened. Five days later, she exhibited disorientation, abnormal behavior, poor articulation, and difficulty in standing. Therefore, she was taken to the neurosurgery department by ambulance...
2016: SAGE Open Med Case Rep
Wesley L Davison, Aaron N Pearlman, Luke A Donatelli, Lindsey M Conley
BACKGROUND: Respiratory epithelial adenomatoid hamartomas (REAH) are benign nose neoplasms found in the nasal cavity and sinuses. Symptoms include anosmia, nasal obstruction, facial pressure, and rhinorrhea. Although previously thought to be rare, these tumors are being increasingly recognized on pathology in patients undergoing endoscopic sinus surgery. However, REAH is difficult to diagnose before surgery because it may mimic other entities, such as nasal polyps or inverted papilloma, and is often found incidentally only after surgery...
July 2016: American Journal of Rhinology & Allergy
Anne Morgan Selleck, Dipan Desai, Brian D Thorp, Charles S Ebert, Adam M Zanation
The most common primary tumors of the frontal sinus are osteomas and inverted papillomas, although a variety of other tumors involving this space have been reported. With the advent of new surgical techniques and instrumentation, an endoscopic approach to this region has become feasible. The preoperative assessment and decision making must take into account the complexity of frontal sinus anatomy, tumor type, tumor location, and associated attachments. These procedures allow adequate visualization, tumor removal, and postoperative monitoring, and preserve fairly normal sinus function...
August 2016: Otolaryngologic Clinics of North America
M Trovato, R M Ruggeri, E Guzzo, R Certo, A Alibrandi, M Scardigno, E Vitarelli, G Arena, O Gambadoro, N Catalano, J C Bourdon, B Galletti, F Galletti, V Cavallari
BACKGROUND: P53, a crucial suppressor of tumor formation, generates multiple isoforms, whose role in disease is still being defined. METHODS: By immunohistochemistry, we studied the expression of P53 protein and relative isoforms in benign papillomas (PA, n=9), inverted papilloma (IPA, n=10) and squamous cell carcinomas (SCC, n=21). RESULTS: In all lesions, P53 isoforms were significantly more expressed than P53. Immunoexpression of P53 matched with P53 isoforms in IPA as well as in SCC...
July 14, 2016: Histology and Histopathology
Ricardo Santana Veiga, João Cassis, Pedro Oliveira, António Lopez-Beltran
BACKGROUND: Inverted papilloma (IP) is an unusual benign neoplasm, most commonly found in the bladder. Cases of malignant transformation have been reported in the past, although most of them are now considered to be urothelial carcinomas with an inverted growth pattern. CASE: A 54-year-old man was diagnosed with urothelial carcinoma in situ (UCIS), high-grade papillary urothelial carcinoma (HGPUC), and IP by transurethral resection specimen of the bladder. The urothelial carcinoma cells were seen colonizing the inverted papilloma...
February 2016: Analytical and Quantitative Cytopathology and Histopathology
Tsung-Wei Liu, Shih-Han Hung, Po-Yueh Chen
Spindle cell carcinoma (SpCC) is a rare variant of squamous cell carcinoma (SCC). SpCC of sinonasal origin is relatively rare and more aggressive than normal SCC. It most commonly involves the maxillary sinus, and rarely the sphenoid sinus. The present study reports a case of sphenoid sinus SpCC presenting with bilateral visual loss. Following endoscopic sinus decompression surgery, the patient was referred to the Oncology Department for a staging workup, and subsequently received concurrent chemoradiotherapy; however, the vision of the patient was not recovered, despite treatment...
July 2016: Oncology Letters
Bijan Beigi, Deepak Vayalambrone, Mohsen Bahmani Kashkouli, Peter Prinsley, Jan Saada
PURPOSE: To present a technique to improve the surgical treatment of frontal sinus mucocele and its recurrence. METHODS: Nine procedures performed on eight patients by a team of ENT and Ophthalmic orbital surgeons. Data collected included patient demographics, surgical details, pathological findings and complications. The surgical technique involved an external approach via the upper eyelid skin crease combined with an internal approach with a rigid 4 mm endoscope described below...
March 2016: Journal of Current Ophthalmology
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