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Benign Neoplasms
Published in Ayşe Serap Karadağ, Lawrence Charles Parish, Jordan V. Wang, Roxburgh's Common Skin Diseases, 2022
Abdullah Demirbaş, Ömer Faruk Elmas, Necmettin Akdeniz
Overview: The melanotic macule is a benign hyperpigmentation of mucous membranes found in about 3% of the general population. There is an increase in focal melanin accumulation without an increase in melanocytes. Lesions are most often located on the vermillion border of the lip, more often on the upper lip.
Volumetric Approach to the Lips
Published in Neil S. Sadick, Illustrated Manual of Injectable Fillers, 2020
For purposes of this discussion, we must first describe and discuss the nomenclature and anatomy of the perioral unit. It is imperative to evaluate the entire perioral when providing lip rejuvenation so that the natural proportions of the face are maintained. The lip is comprised of two components, the mucosal lip and the cutaneous lip. The mucosal lip is the pink part of the lip, the cutaneous lip is the skin colored part of the lip with cornified epithelium and the vermillion border or “white roll” is where the two meet (Figure 10.3). Attractive lips have a well-defined border; therefore the vermillion border must be defined rather than volumized to prevent rolling the lips inward. Additionally, natural youthful lips have a beautiful shape, which is defined by the Golden Ratio (4,5).
Maxillofacial and Dental Emergencies
Published in Anthony FT Brown, Michael D Cadogan, Emergency Medicine, 2020
Anthony FT Brown, Michael D Cadogan
Lips Use 3/0 or 4/0 absorbable sutures such as polydioxanone or polyglactin for intraoral lesions, and 5/0 non-absorbable monofilament nylon or polypropylene sutures for external lacerations.Refer the patient to the oral surgery team if the full thickness of the lip is lacerated vertically, breaching the vermilion border, to avoid cosmetic deformity from inexperienced repair.
Occupational variation in the incidence of lip cancer in the Nordic countries
Published in Acta Oncologica, 2023
Rayan Mroueh, Timo Carpén, Antti Mäkitie, Johnni Hansen, Sanna Heikkinen, Elsebeth Lynge, Jan Ivar Martinsen, Jenny Selander, Ingrid Sivesind Mehlum, Jóhanna Eyrún Torfadottir, Tuula Salo, Eero Pukkala
Squamous cell carcinoma entails 90–95% of all lip cancers and the vermillion border of the lower lip constitutes the most affected anatomical site, probably due to its position, rendering it more exposed to solar radiation and the effect of other potential carcinogens, such as tobacco [10–14]. The risk of developing lip cancer increases with age with the highest peak occurring after 60 years of age [11]. Furthermore, lower incidence rates of lip cancer have been described in females, perhaps because of the reduced frequency of outdoor occupations and the protective effects of lip cosmetics [4–6,11]. Dark-skinned populations also display significantly lower incidences of lip cancer than fair-skinned individuals [4,11], which is presumably due to the photoprotective role of natural skin pigmentation [15].
Lexical stress in childhood apraxia of speech: acoustic and kinematic findings
Published in International Journal of Speech-Language Pathology, 2020
Hailey C. Kopera, Maria I. Grigos
Data collection took place in a sound-attenuated booth in the Department of Communicative Sciences and Disorders at New York University. A motion capture system (Vicon 460; Vicon Motion Systems, 2001) was used to track articulator movement in three dimensions during a word production task at a sampling rate of 120 frames per second. Participants were seated in a chair that faced three motion capture cameras. Seven 3-mm reflective markers were placed on the lips (midline of the vermilion border of the upper lip, midline of the vermilion border of the lower lip, right and left corners of the mouth) and jaw (midline, right and left sides) to track movement of these articulators. In addition, five reference markers were placed on the forehead (midline, right and left sides) and nose (nasion and tip). Data collection sessions were recorded using a Sony digital video camera. A series of Audio Video Interleave files were created during each session, which were converted into Waveform Audio (WAV) files with a 22,050 Hz sampling rate.
Surgical management of severe facial trauma after dog bite: A case report
Published in Acta Oto-Laryngologica Case Reports, 2020
Bernhard Prem, David Tianxiang Liu, Bernhard Parschalk, Boban M. Erovic, Christian A. Mueller
Surgery was performed by the senior author and started within 4.5 h after the attack. The first step was adequate cleansing and rinsing of the wound using povidone-iodine solution for 15–20 min, followed by marginal necrosectomy and debridement. Nasal airway reconstruction began with fixation of the nasal septum. Next, the mucosa of the nasal cavity was attached to the nasal vestibule to reconstruct the passage between the nostrils and the nasal cavity. Absorbable sutures (Vicryl® 5-0) were used to perform multilayer closure of the wounded oral vestibule in the area of the upper lip, resulting in the implementation of a proper vermilion border. Finally, the wound was closed from the left cheek, underneath the nasal root to the right lateral side of the nose, using multiple layers with as little tension as possible (Figure 3). At the end of the surgery, a nasogastric tube was inserted to avoid oral nutrition and bacitracin zinc/neomycin ointment was applied on the wound. Following surgical treatment, the patient was transferred to the intensive care unit for one night.