Accessory Salivary Glands Research Articles

Tumors of the intraoral accessory salivary glands. Surg. Gynec. & Obst., 108

Tumors of the intraoral accessory salivary glands. Surg. Gynec. & Obst., 108

Papillary cystadenoma of accessory salivary gland

1. 1. A case of papillary cystadenoma of an accessory salivary gland is presented. 2. 2. This is a rare and potentially malignant lesion as is evidenced by its recurrence in this case, six and a half years after it was first observed. 3. 3. When encountered it should be treated, therefore, with radical removal, and the patient should be followed up with as great care as any other patient in whom a malignant tumor is found.

Surgical and allied diseases of the salivary glands and ducts.

WHEN a patient presents himself to his physician with swelling or tenderness of one or another of the salivary glands, too often he is treated symptomatically with no attempt to establish the underlying cause. With this consideration in mind, this paper was written with the dual purpose of stimulating interest in the subject and providing a more complete classification of disorders peculiar to the salivary glands. In table 1 is outlined a proposed classification of these disorders. Reference to the salivary glands should include not only the parotid, submaxillary and sublingual glands but also the accessory salivary glands of the mucosal surface, viz., buccal, labial, incisive, palatine and lingual. The major salivary glands secrete intermittently and do so when nerve impulses reach them, whereas the accessory salivary glands secrete almost continuously. A. CONGENITAL ABNORMALITIES The epithelium of the salivary glands arises as outpouchings from that part of the mouth which

Tumour of the Palm having the Structure of a Mixed Tumour of the Salivary Glands

The neoplasms most frequently arising in the glands adjacent to the mucosa of the face and neck have been designated as mixed tumours because of the complex epithelial and connective tissues of which they are composed. Tumours of this type are usually located in one of the large salivary glands, notably the parotid. They occcur, also, in the small accessory salivary glands of the mouth, in the nasal fossae, the pharynx and nasopharynx, on the skin of the face, on the scalp, in the lacrimal glands and the tracheobronchial mucosa. Only a few such tumours located elsewhere than in the cephalic region have been recorded. Kreibig has reported two cases in which growths having the structure of these salivary gland tumours were found elsewhere than in the head and neck. His first patient was a man thirty-eight years of age who, six years previous to hospital admission, had received a severe trauma to the anterior part of the tibia between the median and the lower third. At the point of injury there appeared a hard nodule, which was well encapsulated and increased progressively in size. At the time of examination it was as large as a hen's egg. In Kreibig's second case, that of a man thirty years of age, the tumour, the size of a hazelnut, had appeared three years previously on the proximal part of the forearm. In both instances the diagnosis was mixed tumour. Tessman, quoted by Kreibig, described a tumour which he called a chondro-endothelio-myxoma, which would appear to be a mixed tumour. It had grown for four years on the back of the hand of a middle-aged woman. Hirsch has reported a mixed tumour in a negress, thirty-eight years of age. The tumour, as large as an apple, arose in the connective tissue of the thigh, above the patella.

VITAMIN A DEFICIENCY AND METAPLASIA

Of nineteen rats on a complete diet (Group III, Diet + C. L. O.), none showed foci of squamous keratinizing epithelium in abnormal situations. Of twenty-six rats on a diet deficient in vitamins A and D (Group I, Diet-A-D), twenty-three showed metaplastic changes of varying degree in one or more organs; the metaplasia was of columnar, cuboidal, and transitional epithelium to the squamous keratinizing type. Of eighteen rats on a diet deficient in vitamin A alone (Group II, Diet-A), seventeen showed epithelial metaplasia similar to that of Group I in one or more organs. In Groups I (Diet-A-D) and II (Diet-A) the changes occurred in one or more of the following organs: trachea, large bronchi, small bronchi or bronchioles in lung, posterior nares, accessory salivary glands of base of tongue, paraocular, submaxillary, sublingual, and parotid glands, renal pelvis, ureter, and bladder. The metaplastic changes were as extensive in the rats of Group II on a diet deficient in vitamin A alone as in those of Group I which received a diet deficient in vitamins A and D.