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Head and Neck
Published in Adnan Darr, Karan Jolly, Jameel Muzaffar, ENT Vivas, 2023
Hannah Nieto, Theofano Tikka, Adnan Darr, Karan Jolly, Paul Pracy, Vinidh Paleri
Investigations: CT neck: Air- or fluid-filled sac communicating with laryngeal ventricleMRI: For soft tissue delineation if diagnosis uncertain
Rhinolaryngoscopy for the Allergist
Published in Pudupakkam K Vedanthan, Harold S Nelson, Shripad N Agashe, PA Mahesh, Rohit Katial, Textbook of Allergy for the Clinician, 2021
Jerald W Koepke, William K Dolen
The framework of the larynx is formed by the thyroid, cricoid and epiglottic cartilages and by pairs of arytenoid, corniculate and cuneiform cartilages. The aryepiglottic folds and the arytenoids are located immediately behind the epiglottis (Fig. 11.6). The aperture of the glottis (rima glottidis) is formed by the true vocal folds (plicae vocales) and the posterior commissure between the arytenoids. The anterior ligament of the true vocal folds is located at the anterior angle of the vocal folds. Between the true vocal folds and the false vocal folds (vestibular folds; plicae ventriculares) is the laryngeal ventricle. The nodular swellings located medially in the aryepiglottic folds are the corniculate cartilages which sit on top of the arytenoid cartilages. Lateral to the corniculate cartilages are the cuneiform cartilages.
Anatomy overview
Published in Stephanie Martin, Working with Voice Disorders, 2020
The space between the ventricular and true vocal folds is known as the laryngeal ventricle and it is well supplied with mucous glands, thereby providing lubrication for the vocal folds as a protection in part from the effects of friction.
Relationship between epilarynx tube shape and the radiated sound pressure level during phonation is gender specific
Published in Logopedics Phoniatrics Vocology, 2023
Alexander Mainka, Ivan Platzek, Anna Klimova, Willy Mattheus, Mario Fleischer, Dirk Mürbe
Regarding the laryngeal ventricle, measurements are much more delicate than for other downstream VT features, the reason being the vibrating vocal folds constituting the lower border of this cavity. In the resliced coronal images a blurred upper contour at the glottal level appears, representing the top aspect of the vibrating vocal folds. Also, a distinct whitish contour appears below, which corresponds to the core position of the vocal fold. Since the signal intensity values of the MR-images should correlate to the duration of stay of the vocal fold in the respective voxel, this contour, marked in Figure 3, is likely to correspond to the most frequent position of the upper margin of the vocal fold over time during the vibratory cycle. It was considered to represent the best approximation of the lower boundary of the laryngeal ventricle. Our LVH data were 75% larger than those observed by Agarwal [21]. However, the methodology used in that study where laminographic images were analysed, was substantially different from ours, thus limiting comparability. Nevertheless, the male to female LVH ratio found by Agarwal was 0.31 vs. 0.35 in our study and was therefore quite similar.
The prognostic value of thyroid gland invasion in locally advanced laryngeal cancers
Published in Acta Oto-Laryngologica, 2021
Mustafa Aslıer, Bahar Ezgi Uçurum, Hilmi Cem Kaya, Hakan Coskun
Primary subglottic tumors or tumors with subglottic extension are another important risk factor for TGI. Dadas et al. recommended routine hemithyroidectomy for tumors with subglottic extension greater than 1 cm and thyroid cartilage involvement [4]. Sparano et al. also found subglottic extension greater than 15 mm in all cases with TGI [14]. They found that the cricothyroid membrane, anterior commissure, and laryngeal ventricle were involved in all of these cases [14]. Gurunathan et al. found the prevalence of TGI as 2% in their prospectively designed study involving 50 patients who underwent laryngectomy due to tumor with subglottic extension greater than 15 mm [16]. They suggested that subglottic extension of more than 2 cm, invasion of the cricoid cartilage and the presence of tumors in the perithyroidal soft tissue could be considered as thyroidectomy indications [16]. Mendelson et al. announced that the subglottic extension of more than 10 mm, the presence of transglottic tumor and subglottic origin were significant predictors for TGI, and they recommended performing at least lobectomy and isthmusectomy in these risky conditions [1]. Kumar et al. declared that primary subglottic carcinoma and disease extension to the subglottis significantly increased the risk of TGI and thyroidectomy should be performed in patients with these clinical features [2]. In our study, the frequency of TGI is increased in the presence of subglottic extension.
The great family of cerebral ventricles: Some intruders in the portrait gallery
Published in Journal of the History of the Neurosciences, 2021
The term Sabatier’s ventricle is sometimes used as a synonym for the sulcus of the corpus callosum (Terra 1913, 593). In his Anleitung beim Studium des Baues der nervösen Centralorgane, Austrian neurologist Heinrich Obersteiner (1847–1922) unfortunately carried on a mistake by writing that the sulcus of the corpus callosum was “aussi appelé à tort ventricule de Sabatier” (also wrongly referred to as Sabatier’s ventricle; Obersteiner 1893, 107). Indeed a mistake, because French anatomist and surgeon Raphaël Bienvenu Sabatier (1732–1811) did not use this term in the meaning of the ependymal cavity. In the late-eighteenth century, he described the sulcus of the corpus callosum as follows: “Le vide qui se trouve entre eux [les hémisphères cérébraux] et ce corps [le corps calleux], forme une cavité allongée, que l’on peut assez bien comparer à celle que présentent les sinus ou ventricules du larynx” (the gap between them [the cerebral hemispheres] and this corpus [the corpus callosum], forms an elongated cavity, which could be compared with the one of the laryngeal sinuses or ventricles; Sabatier 1792, 406). Sabatier therefore only pointed out a morphological feature shared by this sulcus and the laryngeal ventricle.