PURPOSE OF REVIEW In this article, we illustrate the evolution of studies that contribute to a better understanding of vocal care for professional voice users and singers in particular. RECENT FINDINGS Research on vocal hygiene is specific, focusing on concrete solutions. It has commonly been believed that hydration and vocal rest are beneficial; recent research proves this supposition. An ex...

A method is proposed to extract glottal-flow spectra from numerical simulations of vocal-fold behavior with a two-mass model including dynamic flow separation. The numerical spectrum, whose general form complies with that of signal glottal-flow models, allows stylization with three linear segments. The slope of the first segment remains relatively constant when source control parameters are var...

An understanding of dynamics of the speech production process may lead to a breakthrough in increasing the quality of synthesized voice and contribute to medical science with respect to treating voice disorder. However, little is known about mechanisms of speech dynamics, in particular about complex interactions of glottal flow and vocal fold vibration. In this paper, a two-dimensional viscoela...

Vocal production requires active control of the respiratory system, larynx and vocal tract. Vocal sounds in mammals are produced by flow-induced vocal fold oscillation, which requires vocal fold tissue that can sustain the mechanical stress during phonation. Our understanding of the relationship between morphology and vocal function of vocal folds is very limited. Here we tested the hypothesis ...

purpose: a 12 year-old boy and a known case of job’s syndrome presented with a large conjunctival mass which represented coexistence of hpv and hsv infections. case report: the presence of hpv virus within these lesions was confirmed by biopsy and dna analysis. the mass lesions did not respond to anti-hpv therapy with topical interferon-α2b, oral cimetidine and oral acyclovir, but improved prom...

renal masses can be categorized as benign and malignant lesions. among the renal malignancies, renal cell carcinoma is the most common malignancy. however, other rare malignant lesions should be considered in differential diagnosis. primary renal lymphoma is quite rare and might be mistaken for renal cell carcinoma. due to lack of lymphatic tissue in the kidney, pathogenesis of renal lymphoma i...

Sulcus vocalis is a linear depression on the mucosal cover of the vocal folds, parallel to the free border, of variable depth, usually bilateral and symmetrical. Its etiology is controversial. Bouchayer et al. consider it to be congenital because of hoarseness in childhood, its diagnosis in the larynx of children and in many family members, and the very association with other congenital larynge...

We report a patient with lung cancer. The first PET/CT imaging revealed hypermetabolic mass in the left aortopulmonary region and hypermetabolic nodule in the anterior segment of the upper lobe of the left lung. After completing chemotherapy and radiotherapy against the primary mass in the left lung, the patient underwent a second PET/CT examination for evaluation of treatment response. This te...

We here present a case concerning a 69 year old female patient with Hereditary Haemorrhagic Telangiectasia (HHT). She was suffering from hoarseness due to a telangiectatic lesion on the right vocal cord. The lesion was treated with laser and the voice improved markedly, which is documented by phonetogram measurement. Patients with HHT who complain of hoarseness should be referred to an otolaryn...

A 30-year-old Chinese lady was admitted for hoarseness of voice of one month's duration. Clinical examination revealed a granuloma of the left vocal cord while chest X-ray showed an opacity in the lower lobe of the right lung. The provisional clinical diagnosis was tuberculous laryngitis. A biopsy of the vocal cord lesion revealed inflamed tissue with actinomycotic colonies. Cultures and sputum...