Search results for "Neck"
showing 10 items of 745 documents
Abordaje multidisciplinar de un carcinoma sebáceo anaplásico palpebral en una paciente de 40 años
2010
Caso clínico: Mujer de 40 años remitida a nuestro servicio por persistencia durante meses de un cuadro de blefaritis anterior de aspecto indolente con aparición de un nódulo indurado en el párpado superior derecho filiado como chalazion refractario al tratamiento convencional, asociado a adenopatía preauricular ipsilateral. La biopsia extemporánea se informó como carcinoma sebáceo. Procedimos a la exéresis completa de dicho párpado y a su reconstrucción con injerto de mucosa palatina y colgajo glabelar. Posteriormente se practicó un vaciamiento cervical radical por la presencia de adenopatías de aspecto necrótico en diversos territorios linfáticos. Se biopsió el párpado inferior que resultó…
Head–Neck Cancer Delineation
2021
Head–Neck Cancer (HNC) has a relevant impact on the oncology patient population and for this reason, the present review is dedicated to this type of neoplastic disease. In particular, a collection of methods aimed at tumor delineation is presented, because this is a fundamental task to perform efficient radiotherapy. Such a segmentation task is often performed on uni-modal data (usually Positron Emission Tomography (PET)) even though multi-modal images are preferred (PET-Computerized Tomography (CT)/PET-Magnetic Resonance (MR)). Datasets can be private or freely provided by online repositories on the web. The adopted techniques can belong to the well-known image processing/computer-vision a…
Current state of dynamic surgery. A literature review.
2021
Background Recently, dental implant technology has been widely used for oral reconstruction. Dental implants are the treatment of choice for those patients with dental absences. An optimal implant placement is based on the prosthetic driven concept in order to achieve an aesthetic and functional restoration with a long-term prognosis. There are two types of guided implant surgery that are described in the literature: Static Guided Surgery (SGS) and Dynamic Guided Surgery (DGS). The aim of this study is to be aware of the current state of dynamic surgery and compare in the literature the discrepancies between planning and placement of dental implants. Material and Methods The study consists …
Employment pathways and work-related issues in head and neck cancer survivors
2014
Background In this exploratory study, employment and psychological factors were investigated in head and neck cancer survivors with survivorship of ≥2 years. Methods Fifty-five head and neck cancer survivors ≤60 years old completed a survey including subscales from the Functional Assessment of Cancer Therapy (FACT) instrument, the Miller Behavioral Style Scale, the General Perceived Self-Efficacy Scale, the Patient Health Questionnaire-9 (PHQ-9), and the Hornheider–Fragebogen short version (HFB) measuring the need for psychological interventions. Exploratory analyses of associations to the employment status were performed. Results The rate of employed patients dropped from three-fourths of …
Waste not, want not: Report of a completely calcified C1-C2 juxtafacet cyst and literature review
2021
Background: Calcified juxtafacet cysts in the cervical spine are extremely rate. Such symptomatic cysts commonly cause neck pain, radiculopathy, or even myelopathy. MR and CT studies typically document cord/ root compression. On occasion, some of these cysts will spontaneously regress, while many others may warrant surgical removal. Case Description: A 70-year-old male presented with a 2-year history of a progressive tetraparesis. The preoperative MR/CT studies showed a C1-C2 left extradural mass occupying more than half of the spinal canal. On MR, it was homogeneously hypointense on both T1- and T2-weighted images, while the CT showed a calcified cyst. Intraoperative and histopathological…
Radiomics and radiogenomics in head and neck squamous cell carcinoma: Potential contribution to patient management and challenges
2021
Abstract The application of imaging biomarkers in oncology is still in its infancy, but with the expansion of radiomics and radiogenomics a revolution is expected in this field. This may be of special interest in head and neck cancer, since it can promote precision medicine and personalization of treatment by overcoming several intrinsic obstacles in this pathology. Our goal is to provide the medical oncologist with the basis to approach these disciplines and appreciate their main uses in clinical research and clinical practice in the medium term. Aligned with this objective we analyzed the most relevant studies in the field, also highlighting novel opportunities and current challenges.
Accuracy of computer-aided image analysis in the diagnosis of odontogenic cysts: A systematic review
2020
Background This study aimed to search for scientific evidence concerning the accuracy of computer-assisted analysis for diagnosing odontogenic cysts. Material and Methods A systematic review was conducted according to the PRISMA statements and considering eleven databases, including the grey literature. Protocol was registered in PROSPERO (CRD 42020189349). The PECO strategy was used to define the eligibility criteria and only studies involving diagnostic accuracy were included. Their risk of bias was investigated using the Joanna Briggs Institute Critical Appraisal tool. Results Out of 437 identified citations, five papers, published between 2006 and 2019, fulfilled the criteria and were i…
A case report of desmoplastic ameloblastoma
2010
Ameloblastomas are the most common benign neoplasm of odontogenic nature. Desmoplastic ameloblastoma (DA) was included in the World Health Organization Classification of Head and Neck Tumors (WHO-2005) as a variant of ameloblastoma with specific clinical, image, and histological features. This case report focuses on a DA which occurred in the mandible of a 25 year-old man. The main signals and symptoms included painless swelling with buccal expansion and tooth displacement. Panoramic and periapical radiographs and cone-bean computed to- mography demonstrated an image mimicking a benign fibro-osseous lesion. The lower border of the mandible was not involved, but tooth displacement could be o…
First-trimester neck abnormalities: three-dimensional evaluation.
1998
In order to study the first trimester ultrasonographic differences between nuchal translucency and hygroma colli, we rescanned 25 fetuses (13 with nuchal translucency and 12 with hygroma colli) using transvaginal and three-dimensional ultrasonography, after obtaining a fetal karyotype report. Our objective was to test the premise that the different physiopathologic mechanisms of both processes would be reflected in detectable sonographic differences. Our retrospective analysis showed that the most striking ultrasonographic difference was the presence of bullae as well as greater irregularity, extent, and amplitude of the membrane in cases of hygroma colli. Fetuses with simple nuchal translu…
Imaging of cervical lymph node metastases in malignant jugular paraganglioma: Imaging of paraganglioma metastases
2009
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