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Radiotherapy of sinonasal cancers: 2025 update.

Sinonasal cancers, including tumours of the nasal cavity, ethmoid, maxillary, sphenoid, and frontal sinuses, account for 3 to 5 % of head and neck malignancies. While the majority are carcinomas, other histologic types such as mucosal melanomas, sarcomas, and lymphomas may also occur. These tumours often present with non-specific symptoms and exhibit a heterogeneous prognosis. The Réseau d'expertise français des cancers ORL rares (the French expert network for rare head and neck cancers), accredited by the Institut national du cancer (the French national cancer institute), is responsible for m

Surgical approach of ectopic maxillary third molar avulsion: Systematic review and meta-analysis.

Ectopic maxillary third molars (EMTM) are extracted mainly by the Caldwell-Luc technique but also by nasal endoscopy. There is currently no consensus on the treatment of this eruption and its management is heterogeneous and multidisciplinary. Two literature searches were performed with no time restrictions via Pubmed. In the first, we used the keywords "ectopic AND third molar" and in the second the keywords "dentigerous cyst AND ectopic third molar". For both articles, epidemiological, symptomatic, radiological and surgical data were recorded. Overall, 33 eligible articles were identified inv

The use of balloon dilation in revision sinus surgery.

BACKGROUND: Recent studies have demonstrated a dramatic increase in the use of balloon sinus dilation (BSD) in the United States. However, the use of BSD specifically in revision sinus surgery has not been investigated. This study addresses the question of how BSD is utilized as a tool in revision sinus surgery. METHODS: Data from MarketScan (Truven Health) over a 5-year period (2012-2016) were analyzed. Patients who underwent a sinus procedure with a minimum of 2 years of follow-up were included. RESULTS: A total of 62,304 patients met inclusion criteria; 6847 (10.99%) underwent revision. A

Normal Anatomy, Histology, and Spontaneous Pathology of the Nasal Cavity of the Cynomolgus Monkey (Macaca fascicularis).

The evaluation of inhalation studies in monkeys is often hampered by the scarcity of published information on the relevant nasal anatomy and pathology. We examined nasal cavities of 114 control cynomolgus monkeys from 11 inhalation studies evaluated 2008 to 2013, in order to characterize and document the anatomic features and spontaneous pathology. Compared to other laboratory animals, the cynomolgus monkey has a relatively simple nose with 2 unbranched, dorsoventrally stacked turbinates, large maxillary sinuses, and a nasal septum that continues into the nasopharynx. The vomeronasal organ is

Three Synchronous Atypical Metastases of Clear Cell Renal Carcinoma to the Maxillary Gingiva, Scalp and the Distal Phalanx of the Fifth Digit: A Case Report.

Oral cavity metastasis of malignant tumors is extremely rare and accounts for only 1% of all malignant oral tumors. Renal cell carcinoma (RCC) can metastasize to any part of the body, with a 15% risk of metastasis to the head and neck region when the disease is disseminated and a 1% risk when it is not. RCC also is the third most common infraclavicular neoplasm that metastasizes to the oral cavity, after lung carcinoma in men and breast carcinoma in women. In the maxillofacial region, the nasal cavity and paranasal sinuses are the most commonly affected sites, followed by the oral cavity. This

Three-dimensional assessment of facial bone cavities in Class I occlusion with normodivergent skeletal pattern.

INTRODUCTION: The aims of our study are to measure the volume of the facial cavities based on a three-dimensional tomodensitometric acquisition in normodivergent, skeletal and dental Class I subjects; to quantify volumetric normality and generate an individual normality concept of these cavities. MATERIAL AND METHODS: The study was performed on a sample of 60 subjects equally divided between both genders. Based on the X, Y, Z coordinates of the anatomic landmarks and structural contours selected on the native slices and with the help of the GammaCepha software, we were able to compute the vol

Medially originated inverted papilloma.

OBJECTIVES: The objective of this study was to determine the characteristics of medially originated inverted papilloma (MOIP) and compare them with laterally originated inverted papilloma (LOIP). METHODS: A retrospective review of the charts for a total of 83 patients with sinonasal inverted papilloma (IP) was conducted. Tumors originating from the nasal septum or the turbinates were categorized as MOIP, whereas tumors originating from the four sinuses were categorized as LOIP. RESULTS: Twenty-eight (34%) and 55 (66%) cases were categorized as MOIP and LOIP. MOIP from the middle turbinate be

[Metastases in the paranasal sinuses secondary to prostatic adenocarcinoma].

OBJECTIVE: To report a new case of exceptional metastases from a prostatic carcinoma. METHODS: 64-year-old male with nine months history of disseminated prostate cancer, taking hormonal treatment and biphosphonates, who presents with rising PSA, facial dysesthesia and left exophtalmos. MRI recognizes the existence of a solid mass in the right maxillary sinus with involvement of the ipsilateral orbital floor, and another one in the left frontal sinus invading the roof of the ipsilateral orbit and also with orbital extraconal involvement. RESULTS: Once the diagnosis was established hormonal ma

Methods for measurement/evaluation of the maxillary and frontal sinus ostial function.

Several test methods for evaluation of the maxillary and frontal sinus ostial function have been described. The test methods can be divided up as follows. Invasive methods: Measurements during spontaneous breathing and measurements during artificial pressure application. Non-invasive methods: Methods with pure stable xenon and xenon133. The most physiological invasive method is measurement during spontaneous nasal breathing and simultaneous recording of the pressure difference over the ostium and air flow through the ostium. Hereby, the ostial resistance can be calculated and the equivalent os

[Wegener's granulomatosis--a disease of many faces].

We describe a case of Wegener's granulomatosis. The first symptoms included severe headache subsiding only after administration of dexamethasone. Despite a great number of diagnostic tests involving CT and MR of the head, the cause of the headache remained unknown. Because a chest x-ray revealed a nodule in the right lung, the patient was sent to our Clinic. Reevaluation of CT and MR pointed to a massive ethmoid sinusitis. 7-days' course of antibiotics and corticosteroids induced remission of the lung nodule. Several diagnoses were made: neoplasm, bacterial ethmoid sinusitis, trigeminal neurit

Maxillary sinus classification for sex and age using 23 artificial intelligence architectures.

Studies have relied on conventional imaging and traditional morphometric analyses of the maxillary sinuses (MS) for sex and age estimation, but little is known about the performance of deep learning models. This study aimed to evaluate the diagnostic accuracy of Convolutional Neural Networks (CNNs) and Vision Transformers (ViTs) in classifying individuals by sex and age through the radiographic assessment of the MS. Panoramic radiographs of individuals aged 6–22.99 years were sampled. Twenty-one CNNs and two Transformer-based architectures were tested. Tasks consisted of binary sex and age (≤ 

Perineural Spread in COVID-Associated Rhino-Orbito-Cerebral Mucormycosis: A Single Tertiary Care Center Study.

BACKGROUND: Infection with rhino-orbito-cerebral mucormycosis (ROCM) has increased in the coronavirus disease (COVID) era, especially in diabetic patients. Rapid extension from the nose and paranasal sinuses to the orbit and brain is noted by osseous erosion, vascular invasion, and infrequently documented perineural spread. OBJECTIVE: To determine the incidence of perineural spread in ROCM cases and evaluate the common neural pathways involved, which help in prognosticating and triaging patients. METHODS AND MATERIALS: We evaluated demographic, clinical, and radiological findings of 270 pati

Sinonasal and ear manifestations of Erdheim-Chester disease.

To calculate the prevalence of sinonasal and ear involvement in an Erdheim-Chester disease (ECD) population, to describe the different ear, nose and throat (ENT) manifestations and to study the association between ENT involvement, other organ involvement, and BRAF mutations. We led a retrospective monocentric study in the national referral center for ECD. One hundred and sixty-two patients with ECD and ENT data were included between January 1, 1980 and December 31, 2020. Ear and nose clinical and radiological findings were noted. We described and studied the prevalence of ENT involvement in EC

Osteomyelitis of the Jaw in COVID-19 Patients: A Rare Condition With a High Risk for Severe Complications.

Osteomyelitis of the jaw is an uncommon infection that arises from the flora of the oral cavity or sinuses and affects immunocompromised and polymorbid patients. Treatment includes surgical debridement and long regiments of broad-spectrum antibiotics. We present three cases of complicated jaw osteomyelitis presented with concurrent COVID-19 infection, including only two reported cases of odontogenic COVID-related osteomyelitis. The two mandibular cases were patients in their 30s with no comorbidities. The first case was an asymptomatic COVID-19-positive patient who developed an odontogenic inf

Совпадение в полном тексте источника
… Maxillary osteomyelitis can also result from maxillary sinusitis ( 1 , 3 ). Severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) virus quickly swept through the world and became a pandemic only months after its first isolation and identification ( 4 ). … The particularity of jaw bones is their relationship with teeth and pneumatized spaces of maxillary sinuses. …

Carcinoma with Triphasic Differentiation Arising from Inverted Papilloma in Sinonasal Sinus: A Rare Case with Molecular Characterization.

Small cell neuroendocrine carcinoma (SNEC) is a rare subset of tumors in the sinonasal sinus. Combined tumors are exceedingly rare. Here, we describe a 65-year-old male with a mixed tumor of SNEC and sarcomatoid carcinoma arising in an inverted papilloma, containing squamous cell carcinoma in situ (SqCCis) in the sinonasal sinus. We evaluated the molecular characteristics of the two separate carcinoma components using next-generation sequencing. The patient presented with a nasal obstruction. Computed tomography showed a mass infiltrating the right ethmoid and maxillary sinuses. An excisional

Extraoral anatomy in CBCT – a literature review. Part 1: Nasoethmoidal region.

Cone beam computed tomography has become a widely used imaging technique for dental indications. Depending on the selected size of the field of view, anatomical structures outside the dentomaxillary complex become visible. As a consequence, the clinician must be able to interpret also those anatomical regions. In this article, the anatomy of the nasoethmoidal region is presented based on a literature review. The nose is characterized by the nasal septum and the superior, middle, and inferior conchae. The turbinates may be pneumatized (concha bullosa), mainly the middle concha. The ethmoid bone

Analysis of Forces Applied During Transalveolar Sinus Lift: A Preliminary Clinical Study.

PURPOSE: To introduce a novel modality that enables the measurement of forces applied during a transalveolar sinus floor elevation (tSFE) and to investigate the influence of anatomical and surgical factors on the necessitated force in sinus membrane detachment. MATERIAL AND METHODS: A new endosinus probe, innovated with a calibrated load cell, was used to test the forces needed to perforate ten maxillary sinuses in 5 human cadavers. The same probe was also used to detach the Schneiderian membrane from the bony floor of 21 human subjects undergoing tSFE. RESULTS: The force needed to cause mem

Morse Taper Connection Implants Placed in Grafted Sinuses in 65 Patients: A Retrospective Clinical Study with 10 Years of Follow-Up.

PURPOSE: To investigate the 10-year survival and complication rates of Morse taper connection implants (MTCIs) placed in grafted sinuses. METHODS: This study reports on patients treated with maxillary sinus augmentation (with the lateral window technique (LWT) or the transalveolar osteotomy technique (TOT)) and installed with MTCIs supporting fixed restorations (single crowns (SCs) and fixed partial dentures (FPDs)), in two dental clinics. The outcomes of the study were the 10-year implant survival and complication rates. RESULTS: Sixty-five patients (30 males and 35 females) with a mean age