Search results for "NEOPLASIA"
showing 10 items of 177 documents
6-18F-Fluoro-l-Dihydroxyphenylalanine Positron Emission Tomography Is Superior to123I-Metaiodobenzyl-Guanidine Scintigraphy in the Detection of Extra…
2010
Context: Pheochromocytomas (PHEOs) and paragangliomas (PGLs) may be better detected by 18F-fluorodihydroxyphenylalanine-positron emission tomography (FDOPA-PET) than 123I-metaiodobenzyl-guanidine (123-I-MIBG) scintigraphy. Objective: The objective of the study was to correlate functional imaging results with immunohistochemical, molecular-genetic, and biochemical findings. Design and Setting: Thirty consecutive patients with suspected PHEO/PGL presenting at a tertiary referral centre were investigated in a prospective study. Patients: Twenty-five patients had confirmed PHEO/PGL. Thirteen of 25 patients had a hereditary PHEO/PGL syndrome (two multiple endocrine neoplasia II, six succinate de…
Incidence Patterns and Trends of non-Central Nervous System Solid Tumours in Children and Adolescents. A Collaborative Study of the Spanish Populatio…
2016
Journal Article; OBJECTIVE To describe incidence patterns and trends in children (0-14 years) and adolescents (15-19 age-range) with solid tumours, except those of central nervous system (CNS), in Spain. METHODS Cases were drawn from eleven Spanish population-based cancer registries. Incidence was estimated for the period 1983-2007 and trends were evaluated using Joinpoint regression analysis. RESULTS The studied tumour groups accounted for 36% of total childhood cancers and 47.6% of those diagnosed in adolescence with annual rates per million of 53.5 and 89.3 respectively. In children 0 to 14 years of age, Neuroblastoma (NB) was the commonest (7.8%) followed by Soft-tissue sarcomas (STS) (…
Duodenal perforation as presentation of gastric neuroendocrine tumour: A case report
2020
Highlights • Gastric neuroendocrine neoplasms (g-NENs) represent the most frequent digestive NENs and are increasingly recognized thanks to diffusion of upper gastrointestinal endoscopy. • g-NENs can be sporadic or associated with multiple endocrine neoplasia type 1 (MEN-1) and present with a functional Zollinger-Ellison syndrome. • We described a case of a 60 years old Caucasian male came to emergency room with diffuse abdominal pain and leukocytosis on blood tests. • At the level of the pyloric portion we found irregularly thickened walls associated with a small fluid collection and bubbles of free air. On exploratory laparoscopy we found a large perforation (about 5 cm of size) in the fi…
Prevalence of human papillomavirus in the saliva of sexually active women with cervical intraepithelial neoplasias
2020
Background The main objective of this study was to estimate the prevalence of human papillomavirus-DNA (HPV-DNA) in the saliva of sexually active women with HPV-related cervical intraepithelial neoplasias (CIN) and compare the findings with a healthy control group. The secondary objectives were: 1) to determine the concordance between genital and oral HPV types in sexually active women with HPV-related CIN; 2) to analyze whether sexual habits influence the presence of HPV-related CIN; 3) to determine whether sexual habits influence the presence of oral HPV. Material and Methods Saliva samples were collected from 100 sexually active women, 50 with HPV-related CIN and 50 healthy subjects pres…
Prise en charge des proliférations épithéliales du sein avec et sans atypies : hyperplasie canalaire atypique, métaplasie cylindrique avec atypie, né…
2015
In the last few years, diagnostics of high-risk breast lesions (atypical ductal hyperplasia [ADH], flat epithelial atypia [FEA], lobular neoplasia: atypical lobular hyperplasia [ALH], lobular carcinoma in situ [LCIS], radial scar [RS], usual ductal hyperplasia [UDH], adenosis, sclerosing adenosis [SA], papillary breast lesions, mucocele-like lesion [MLL]) have increased with the growing number of breast percutaneous biopsies. The management of these lesions is highly conditioned by the enlarged risk of breast cancer combined with either an increased probability of finding cancer after surgery, either a possible malignant transformation (in situ or invasive cancer), or an increased probabili…
Prädiktive genetische Untersuchungen: Individualisierung von Diagnostik und Therapie bei Familien mit multipler endokriner Neoplasie Typ II
2008
BACKGROUND AND OBJECTIVE When multiple endocrine neoplasia type 2 (MEN2) is suspected, genetic tests are at the centre of screening procedures. It was the aim of this study to compare the diagnostic value of molecular biological investigations with that of conventional biochemical tests. PATIENTS AND METHODS The study cohort consisted of all 144 patients cared for in our department since 1990 with the suspected diagnosis of MEN2 (evidence of a medullary thyroid carcinoma [MTC]), coexistence of two MEN2 tumours or a family history of MEN2. 14 of the 144 patients (from 12 families) were already known to have an hereditary MTC, while the remaining 130 had been referred for further diagnostic i…
Specific mutations of the RET proto-oncogene are related to disease phenotype in MEN 2A and FMTC.
1994
We have analysed 118 families with inherited medullary thyroid carcinoma (MTC) for mutations of the RET proto-oncogene. These included cases of multiple endocrine neoplasia types 2A (MEN 2A) and 2B (MEN 2B) and familial MTC (FMTC). Mutations at one of 5 cysteines in the extracellular domain were found in 97% of patients with MEN 2A and 86% with FMTC but not in MEN 2B patients or normal controls. 84% of the MEN2A mutations affected codon 634. MEN 2A patients with a Cys634 to Arg substitution had a greater risk of developing parathyroid disease than those with other codon 634 mutations. Our data show a strong correlation between disease phenotype and the nature and position of the RET mutatio…
Adenocarcinoma Polimorfo de Bajo Grado de fosa nasal
2005
Se presenta un inusual caso de Adenocarcinoma Polimorfo de Bajo Grado en estadio IV (T4N2CMx) localizado en la fosa nasal con extensión hacia región pterigoidea. El tumor primario fue tratado mediante una resección del mismo a través una osteotomía de maxilar superior tipo Lefort I y a nivel cervical se realizó un vaciamiento ganglionar cervical supraomohioideo homolateral. Posteriormente recibió tratamiento coadyuvante con radioterapia postoperatoria. An unusual case of a T4N2CMx polymorphous low grade adenocarcinoma located in the nasal fossae and extending to the pterygoid area is presented. The primary tumor was excised through a Lefort I maxillotomy and the neck was managed with a supr…
Ulcera crónica lingual inducida por lipoma de la cavidad oral: caso clinico
2004
Aunque se trata de uno de los tumores benignos más frecuentes del organismo, el hallazgo de lipomas en la cavidad oral es un hecho inusual. En esta localización suelen presentar un crecimiento lento, indoloro y asintomático que puede dar lugar a tumoraciones redondeadas y bien definidas de gran tamaño. En estos casos son frecuentes los síntomas relacionados con la compresión de las estructuras vecinas. En el presente trabajo estudiamos el caso clínico de un paciente en el que el lipoma intraoral fue el hallazgo definitivo tras el diagnostico diferencial exhaustivo de una úlcera crónica de la lengua y del suelo de la boca. La clave para el diagnóstico fueron las pruebas de imagen (TC y RNM) …
Neuropatías trigeminales tumorales: presentación de 7 casos
2006
Las neuropatías del trigémino de origen tumoral suponen un bajo porcentaje de las neuropatías trigeminales, pero pueden tener muy mal pronóstico. Es importante descartar una neoplasia en los pacientes con adormecimiento en el territorio del trigémino. Presentamos 7 casos de neuropatías trigeminales secundarias a tumores; en 4 existían antecedentes de neoplasias sistémicas previas y en 3 la neuropatía fue el primer signo de la enfermedad tumoral. En tres ocasiones la lesión se localizó en mandíbula, una en base de cráneo, una en troncoencéfalo, una a nivel cerebral y en una no se encontró el nivel lesional. La evolución fue muy mala en 5 pacientes; sólo se recuperó un caso en el que tras la …