China
Africa
Explore chapters and articles related to this topic
Gastrointestinal tract and salivary glands
Published in A Stewart Whitley, Jan Dodgeon, Angela Meadows, Jane Cullingworth, Ken Holmes, Marcus Jackson, Graham Hoadley, Randeep Kumar Kulshrestha, Clark’s Procedures in Diagnostic Imaging: A System-Based Approach, 2020
A Stewart Whitley, Jan Dodgeon, Angela Meadows, Jane Cullingworth, Ken Holmes, Marcus Jackson, Graham Hoadley, Randeep Kumar Kulshrestha
The parotid glands are the largest of the salivary glands and lie just below the zygomatic arch in front of, and below, the ear. The parotid duct (Stenson’s duct) is about 5 cm in length and runs forwards over the masseter muscle opening on the surface of a small papilla on the inner surface of the cheek, opposite the second upper molar tooth. The submandibular glands are paired and lie on either side of the neck, forming part of the soft tissues on the medial margin of the mandible, between the body of the mandible and the hyoid bone. The submandibular duct (Wharton’s duct) is about 5 cm in length and runs forward, medially and upwards, beneath the mucous membrane of the floor of the mouth and opens at a small papilla at the base of the frenulum of the tongue. The two sublingual glands are the smallest of the salivary glands and lie on the anterior part of the floor of the mouth, on the surface of the mylohyoid muscle. The glands secrete directly into the oral cavity through multiple ducts (ducts of Rivinus), which may open adjacent to the frenulum of the tongue or may join to form a single duct (Bartholin’s duct) that empties into the submandibular duct.
Properties and Applications of Rare Earth Oxides, Alloys, and Compounds
Published in A. R. Jha, Deployment of Rare Earth Materials in Microware Devices, RF Transmitters, and Laser Systems, 2019
Gadolinium was first discovered in 1880. This element is found in abundance in the Earth’s crust. Its atomic structure, ionization energy, electrical conductivity, and thermal properties are best suited for MRI, medical diagnosis, and medical research instrumentation. It should be noted that this element is best suited as an injectable contrast agent for patients undergoing MRI procedure. Note MRI findings are very useful in the examination of the parotid gland. But MRI and computer tomography (CT) are also ideal for the evaluation of congenital pulmonary vein abnormalities. Note that the high magnetic moment capability of gadolinium can reduce the relaxation time, which can improve the signal intensity. This element can be used in X-ray cassettes, computer tomography, and other medical applications. Its other isotopes characteristics are summarized in Table 1.8.
Primary Squamous Cell Carcinoma (SCC) of the parotid gland
Published in Cut Adeya Adella, Stem Cell Oncology, 2018
In literature it has been established that the surgical resection is the major treatment modality for primary parotid gland malignancies. However several factors such as such as tumour size, extent of tumour, presence of metastasis and facial nerve involvement have an influence in management decision (Woods et al., 1975; Zbaren et al., 2005).
Parotid salivary ductal system segmentation and modeling in Sialo-CBCT scans
Published in Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, 2021
O. Shauly, L. Joskowicz, E.G. Istoyler, C. Nadler
Salivary glands secrete saliva, which is essential for oral hygiene and for food digestion. Saliva is produced by three pairs of salivary glands: sublingual, submandibular, and parotid glands. Salivary glands consist of an acinar compartment where saliva is produced and a ductal compartment where saliva is modified and transported to the oral cavity. The ductal compartment consists of a primary salivary duct which is fed by secondary ducts which are further fed by other ducts bifurcating until they reach the acinar components. The parotid glands are the largest salivary glands.