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A protocol was developed for the radiographic evaluation of the postmaxillectomy patient that called for a six- to eight-week postoperative, baseline computed tomography (CT) scan, followed by CT scans at four- to six-month intervals for at least three years. This protocol allowed for an early, more complete assessment of clinically discovered recurrences(More)
Parotid pleomorphic adenomas are usually benign, solitary, ovoid masses. Occasionally, these tumors may be highly lobulated and clinically mimic multiple lesions. Actual multiple benign mixed tumors are rare as are malignancies that occur in these pleomorphic adenomas. Of these malignancies, the most common type is the carcinoma ex pleomorphic adenoma. Two(More)
The computed tomography (CT) appearance of mucoceles involving the ethmoid sinuses is presented. A classification based on the growth patterns of these mucoceles is proposed, and a differential diagnosis for each group is suggested. The unique CT appearance of the ethmoid polypoid--mucocele is described for the first time, and the radiographic definition of(More)
Phlebectasia of the internal jugular vein (IJV) is a rare entity with only 25 cases having been reported. Clinically this condition presents with enlargement with a Valsalva maneuver and decrease at rest. Venography, anteriography, and ultrasound have previously been used to diagnose this unusual cause of neck mass. We present a case in which CT confirmed(More)
From day 12 to 16 of gestation a highly circumscribed zone of cellular degeneration has been observed in the otocyst of more than 50 normal rats. This zone appears to be produced by selective or programmed cell death, and results in the elimination of unneeded cellular elements. That cells in this zone are also selectively destroying subcellular organelles(More)
Oncocytoma of the salivary glands is a rare tumor that usually follows a benign course and, in most cases, can be cured by surgical resection. The authors report a rare case of multiple bilateral parotid oncocytomas that presented clinically with two palpable parotid masses. Both CT and MRI scans demonstrated multiple masses in each parotid gland. The(More)
Antral mucoceles are more common than previously reported and probably represent 10% of all paranasal sinus mucoceles. The majority are primary, involve the entire sinus, and result from inflammatory, allergic, or malignant disease. Postoperative mucoceles involve only a portion of the antrum and have a different etiology and appearance. A review of the(More)