Search results for "silla"
showing 10 items of 147 documents
Successful Endoscopic Resection of an Esophageal Metastasis from a Preceding Squamous-Cell Tonsillar Carcinoma
2005
This report describes the case of a 62-year-old man with tonsillar carcinoma who had undergone esophagectomy due to an esophageal metastasis. Subsequently, a second metastasis occurred in the residual esophagus, and he presented for evaluation for local endoscopic therapy. The initial upper endoscopy revealed a type IIa - c lesion at 21 cm from the incisors, within a segment suspicious for Barrett's mucosa. As part of the complex treatment approach in this patient, endoscopic resection of the lesion was carried out using the suck-and-cut technique with ligation. Histology showed that the lesion was a metastasis from a squamous-cell carcinoma, with focal infiltration of the upper submucosal …
Nuevos hallazgos de los gasterópodos Aplus assimilis (Reeve, 1846) (F. Pisaniidae) y Mitrella psilla (Duclos, 1846) (F. Columbellidae) en la costa me…
2020
espanolSe dan a conocer varios hallazgos de dos gasteropodos exoticos marinos Aplus assimilis y Mitrella psilla en los puertos pesqueros de la costa mediterranea espanola desde Sagunto (Valencia) hasta Sant Carles de la Rapita, en el delta del Ebro (Tarragona). Se proporcionan algunos datos conquiliologicos y los mapas de distribucion geografica actual de ambas especies en el Mediterraneo occidental catalaEs donen a coneixer diverses troballes de dos gasteropodes exotics marins Aplus assimilis i Mitrella psilla als ports pesquers de la costa mediterrania espanyola des de Sagunt (Valencia) fins a Sant Carles de la Rapita, al delta de l’Ebre (Tarragona). Es proporcionen algunes dades conquili…
Criteri di selezione dei pazienti affetti da OSAS da sottoporre a palatofaringoplastica
2009
Fine Structure of Antennal Sensilla of Paysandisia archon and Electrophysiological Responses to Volatile Compounds Associated with Host Palms
2014
Paysandisia archon (Lepidoptera: Castniidae) is a serious pest of palm trees. A comprehensive knowledge of the insect olfactory system is essential for the development of efficient semiochemical-based control methods. The olfactory sensilla are located particularly on the antennae, and these can detect plant volatiles that provide important cues for the insects in the search for their host plants. To date, the fine structure of P. archon antennal sensilla studies and their role in host-plant perception have not been investigated in great detail. Using light microscopy and scanning and transmission electron microscopy, the antennae of both sexes of P. archon are described here in detail, acc…
Biopsy vs. brushing: comparison of two sampling methods for the detection of HPV-DNA in squamous cell carcinoma of the oral cavity
2012
Background: HR HPV infection was proposed as aetiological factor of oral squamous cell carcinomas (OSCC). HPV frequency in OSCC is highly variable, due to the discrepancy in oral sampling procedures, HPV testing methods and inclusion criteria regarding tumour site (strictly oral cavity vs. nearby structures). Our aim was to compare HPV DNA frequency and type-specific distribution in paired cytological and histological samples of SCC strictly located in oral cavity. The correlation between HPV detection rate by each method of sampling and demographical, behavioural and clinical-pathological variables was also examined. Patients and methods: HPV DNA was detected in brushed cells and formalin-…
Principi di classificazione del suono nella Grecia antica. Le origini della riflessione fonetica tra oralità e scrittura
2001
Il saggio affronta il problema delle origini della riflessione fonetica in grecia. opinione dei più è che la riflessione fonetica sia, in Grecia, fortemente influenzata dalla scrittura alfabetica. Gli stoicheia o grammata sarebbero insomma redupicazioni foniche dei caratteri scritti. L'autore smonta questa tesi partendo da un'analisi della terminoolgia delle classificazioni fonetiche, ricavata da una analisi esastiva di tutte le fonti letterarie a nostra disposizione. Essa presenta quattro fasi. 1. prima fase, prelpatonica. i grammata sono divisi in due classi esaustive ed esclusive: phoneenta (vocali) ed aphona (non vocali). Una simile classificazione è presente ad esempio nelle tragedie d…
Necrotizing sialometaplasia of the tonsillar pillar. An unusual case
2021
Necrotizing Sialometaplasia (NS) is a rare, benign, self-limited, inflammatory and necrotizing reaction of the salivary glandular tissue. Due to the clinical picture (a painful ulcer with well-defined edges), and histopathological characteristics (nuclear and cellular pleomorphism of ductal cells) NS can mimic a malignant lesion. The correct diagnosis is important because NS shows a spontaneous resolution and therefore no further treatment is needed. We report a very unusual case of spontaneous and recurrent NS located on the anterior tonsillar pillar in a 43-year old man, which clinically mimics a malignant lesion. The clinician should be aware to include NS in the differential diagnosis o…
Cricket combined mechanoreceptors and kicking response
1977
1. Only those filiform hairs on the cerci ofGryllus, which are coupled with campaniform sensilla, show a) a thickening of the hair shaft at the height of the upper ring lamella of their sockets and b) a thin cuticular membrane, which surrounds their sockets. While thefiliform hairs themselves are deflected either parallel to the long axis of the cerci or perpendicular to it, thesockets of the filiform hairs may be deflected preferentially in the proximal and distal direction. 2. Spike potentials can be recorded from the sensory cells of the filiform hairs as long as these are deflected in a weak air current, but not during permanent deflection in strong air streams when they touch the inner…