1. The liberation of ammonia from adenosine 5'-phosphate (AMP) and adenosine and the release of inorganic phosphate from AMP were investigated in homogenates of bovine and human parotid glands. 2. Adenosine phosphate deaminase (AMP deaminase) was purified from bovine and human parotid glands. The enzyme preparations obtained were free from adenosine deaminase and 5'-nucleotidase activities. 3. ...

Deoxyribonucleic acid (DNA) was extracted from parotid gland tumors with phenol. The injection of this DNA into 24-hour to 1-week-old AKR mice resulted in a 65 per cent incidence of parotid tumors and/or epithelioid thymomas. Oncogenic properties of the DNA preparation were abolished by incubation with deoxyribonuclease. Cell-free filtrates of the parotid tumors inoculated into suckling AKR mic...

ABSTRACT OBJECTIVES To find preoperative predictive signs for better surgical planning of the facial nerve in parotid tumors. METHODS Prospective study in patients with primary parotid malignancies. Patients with primary parotid malignant tumor were investigated for preoperative clinical signs in correlation with histological findings and surgical management of the facial nerve. OUTCOMES...

UNLABELLED Parotid gland parenchyma histology may be altered by local or systemic, pathological or nonpathological conditions. OBJECTIVE This paper aims to highlight the fatty degeneration of the parotid gland, a not well-known non-pathological condition. METHOD In a retrospective study, we collected a series of 6 patients which presented a swelling of the parotid, but even after extensive ...

The knowledge of normal and variant anatomy of the facial nerve is essential for safe surgery of the parotid gland. The location of a parotid mass in relation to the course of the facial nerve determines whether superficial or total parotidectomies should be performed. The variant course of the facial nerve within the parotid may endanger the nerve during parotid surgeries. The present report i...

Metastatic malignancy presenting as cardiac tamponade is not uncommon; however, hematogenous spread from carcinoma is rare. There are only three previously reported cases of parotid malignancy with pericardial metastasis. We report a case of parotid adenocarcinoma leading to cardiac tamponade in a 61-year old man. The patient presented with signs and symptoms of cardiac tamponade. The diagnosis...

Facial nerve palsy is usually associated with a malignant parotid neoplasm; it is highly unusual for it to result from a benign situation, such as inflammation or infection of the parotid gland. Surgery along with prompt medical treatment is the mainstay, and in the majority of the patients, nerve paralysis recovers in the follow-up period. We report a case of a 50-year-old non-diabetic non-hyp...

Warthin’s tumor, also known as papillary cystadenoma lymphomatosum or adenolymphoma, is the second most common benign tumor of the salivary glands. It arises exclusively in lower part of the parotid gland and affects mainly male in sixth or seventh decades of life. Studies have shown that there is a close association between Warthin’s tumor and cigarette smoking. Preoperative fine needle aspira...

Mucoepidermoid carcinoma (MEC) is the most
 common malignant tumor of salivary gland and
 most commonly seen in parotid. Oncocytic
 mucoepidermoid (OMEC) a rare
 subtype. Here, we aimed to present histological,
 immunohistochemical, and molecular results a
 28-year-old female patient followed for endometrial
 cancer, whether mass right parotid primary or metas...

In adults, hemangioma is a rare presentation of a parotid mass. In this report, we present a case of a 40-year-old lady complaining of a swelling in the right inferior parotid region. Imaging studies revealed a cystic lesion of the right parotid gland. Fine needle aspiration cytology was not significantly helpful in revealing the diagnosis. In the operating room, a vascular cystic lesion was fo...