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Pseudocyst of the auricle is a spontaneous intracartilaginous collection of serous fluid in the anterior aspect of the auricle. These cysts occur frequently in young healthy Chinese males. Engel (1966) was the first to report a series of pseudocysts of the auricle in Chinese. Its etiology is unknown, treatment is difficult and recurrence frequent. In the paper a case report is presented and a review of the literature of this rare condition is done.

The AA. present 2 cases of olfactory Neuroblastoma in different stages of histologic differentiation, which are compared. Bibliographic survey of the entity.

The onset of the bone radionecrosis is a relatively unusual problem which should be considered in the differential diagnosis of recurrences of irradiated tumors showing a high degree of aggressiveness. The AA. present a case report of a re-operated lower lip carcinoma which underwent further radiation therapy. A bony mandibular lesion was then observed, which led to the diagnosis of tumoral invasion at the mandible, and a partial mandibulectomy was then performed. The histopathological examination revealed a bone necrosis, probably due to radiotherapy. The clinical features and therapeutic management of mandibular osteoradionecrosis are commented.

The 14 subglottic and glottic-subglottic carcinomas treated in the Otolaryngologic Department of the AA. between 1984 and 1989 are reviewed. Check of literature about subglottic carcinomas.

Angiolymphoid hyperplasia with eosinophilia is a multisystemic disease characterized mainly by cutaneous nodules, vascular proliferation with atypical histiocytoid endothelial cells and numerous eosinophiles, often with blood eosinophilia. It use to recur "in situ" and persist after surgical excision. The AA. review the literature about this rare tumor and present the clinical and histopathological features of a case of Angiolymphoid hyperplasia with eosinophilia of the tongue.

A case report of ear undifferentiated squamous cell carcinoma is presented. The patient complained pain and suppurative ear, which lead to us to practise an exploratory atticotomy, and therefore the tumor was detected on its early stages. It is a very interesting case report due to its unusual localization, and to the early diagnosis to improve the prognosis of these patients.

Granular cell tumor is an unusual tumor of probably neuroectodermal histogenesis, originally reported by Abrikossoff (1926) as a myoblastoma. Of the about 1,200 reported cases since then, 50% are found in the head and neck. Of these, 10% have a laryngeal localization. An infrequent case report of glottic localization which was solved by chirurgical excision with free margins, is presented. The features of the laryngeal presentation, is reviewed and iconography with immunohistochemical techniques of their pathologic characteristics, is showed.

The paper reports the case of a maxillary brown tumor as early sign of primary hyperparathyroidism. Brown tumors are very unusual growths in daily ENT practice and an odd start of primary hyperparathyroidism. The AA. emphasize the importance of a correct differential diagnosis, especially with those tumors showing multinucleated giant cells (osteoclast type)--such as true giant cells tumor and central giant granuloma--prior to its management. They also comment on the interesting contribution to diagnosis by imagery brought by CT scan, magnetic resonance (MR), ultrasonography (echography) and digital subtraction gammagraphy to attain the topographic site of the parathyroid tumor.

Neuropathology occurring as a result of hemodynamic injury occurs in up to 25% of preterm newborns of less than 1,500 gm birth weight and in a much smaller, but nonetheless meaningful, proportion of more mature infants. Abnormalities in cerebrovascular regulation have been proposed as major contributing factors to both ischemic and hemorrhagic injuries in the newborn brain. In this review we explore several factors that play a role in cerebrovascular regulation in the immature brain and relate them to what is known about vascular regulation in the mature brain and to the types of pathology that occur in the newborn brain. One goal in this "decade of the brain" should be to increase our basic and clinical knowledge about the cerebrovasculature of the newborn in order to enhance our ability to predict and prevent perinatal brain injury.

We comment our attitude in dealing with lymph nodes and thyroid gland surgery for thyroid cancer. This was based on our 10 years experience with such surgery, in which we have performed 350 chirurgic interventions. Of them, in 55 cases a thyroid carcinoma was detected (36 papilar, 13 follicular, 4 medular, 1 anaplasic and 1 metastasic clear-cell carcinoma).

The purpose of our paper is to study the decannulation of those which a supraglotic horizontal laryngectomy was performed. For that, we compare two groups of patients: those which received postchirurgic radiotherapy, and those which did not need it.

The first symptom in this case was an spastic paraplegia following a compressive metastasis of the spine sitting in the D8-9 after a follicular Carcinoma of the thyroid gland.

The general belief is that primitive multiple growths either in the aero-digestive pathways or elsewhere are increasing events. In the paper is presented a clinical case of Carcinoma of the larynx with an homolateral submaxillary lump which was firstly taken as a metastatic adenopathy. At examination both macro- and microscopically show to be a lymphomatous papillary. Cystadenoma (Warthin's tumor). Comments about the sitting of those multiple tumors as well as the features of the Warthin's tumor.