Mucoepidermoid tumor: a case report involving the operculum of an erupting permanent second molar.

The mucoepidermoid tumor (carcinoma) accounts for approximately 6% to 8% of all salivary gland tumors. Although rare in children, it is the most common "malignant" salivary gland tumor, having been reported in major and minor (intraoral) salivary gland sites as well as in the maxilla and the mandible. In children, as in adults, it most often occurs in the parotid gland, but a significant percentage is found in the palate and retromolar pad area. Presently, there is no unanimity of opinion about whether to consider all mucoepidermoid tumors malignant or what the most appropriate treatment regimen is. The following is a case report of a mucoepidermoid tumor presumably arising from the reduced enamel epithelium in soft tissue overlying an erupting mandibular second molar in an 11-year-old boy. Theoretical origins of intraoral soft tissue mucoepidermoid tumors are discussed, as well as treatment philosophy. The importance of submitting, for microscopic diagnosis, all tissue removed during surgical procedure is illustrated in this case report.

Ameloblastoma in young persons: a clinicopathologic analysis and etiologic investigation.

Ameloblastoma, an odontogenic tumor of ectodermal origin, has been reported to arise, on rare occasions, in a primordial or dentigerous cyst of a young person. Numerous authors have suggested differing nomenclatures for these ameloblastomas (e.g., mural, unicystic, monocystic, intracystic, cystogenic, cystic, plexiform unicystic) and have sought to describe and classify the clinical and histopathologic features. These tumors have been characterized as a distinct variant exhibiting less aggressive behavior and a lower rate of recurrence than conventional ameloblastoma. Furthermore, various etiologic factors have been proposed for these cystic ameloblastomas, including (1) nonspecific irritational factors such as extraction, caries, trauma, infection, inflammation, or tooth eruption; (2) nutritional deficit disorders, and (3) viral infection. The files of the combined accessioned cases of Emory University's and Temple University's oral pathology laboratories were searched and a review of the literature was performed. Thirty-eight cases of mandibular ameloblastoma (37 intraosseous, 1 peripheral) in persons 19-year-old and younger were found from a combined total of 311 accessioned cases of ameloblastoma (12.2%). The average age at diagnosis was 10.4 years for the 18 males and 20 females. Of the 33 cases in which race was stated, 19 (57.6%) were white and 14 (42.4%) were black. In the 28 cases in which a clinical diagnosis was offered, fifteen (53.6%) were thought to be dentigerous cysts. Ten cases from patients less than 19 years old were investigated by means of an immunohistochemical staining technique for the detection of human papilloma virus (HPV) genus-specific structural antigen in formalin-fixed, paraffin-embedded tissue. Three of the ten cases (cases 31, 37 and 38) were positive for HPV capsid antigen, whereas none of ten randomly selected ameloblastomas in adults was positive. A discussion of the clinical and histopathologic comparative findings, with emphasis on treatment results and possible HPV etiology, is included. The preliminary nature of finding HPV in the tumor cells is stressed, with recommendation for further verification and typing with the more sensitive in situ hybridization technique.

[Symptomatic and prognostic differences according to ethnic group in systemic lupus erythematosus. A controlled study of 3 populations]. / Différences symptomatiques et pronostiques selon la communauté ethnique dans le lupus érythémateux systémique. Etude contrôlée sur 3 populations.

Systemic lupus erythematosus (SLE) has been found in all ethnic groups, but some of these groups--notably the black populations of the United States--seem to develop severe forms of the disease. We compared the signs and course of SLE in 20 black patients from the French West Indies, 20 patients of North African origin and 40 European Caucasians. At the onset of the disease, most of the West Indian and North African patients were living in France, and their social level was similar to that of the European patients. On the whole, our study confirmed that SLE is particularly severe in black populations. This severity is primarily due to renal involvement: 7 of the 13 renal biopsies we performed showed diffuse proliferative glomerulonephritis. In North African patients the severity of SLE was intermediate between that observed in West Indians and in European Caucasians. Five out of our 40 West Indian and North African patients died, as against only one female patient among the 40 European Caucasians. These differences seem to be ascribable to genetic factors rather than to environmental factors.

Bisexualidad y diferencia de los sexos

En este libro se reúnen una serie de ensayos, de autores de las más diversas corrientes, referidos a la bisexualidad y a la diferenciación sexual en los seres humanos

Bisexualidad y diferencia de los sexos

En este libro se reúnen una serie de ensayos, de autores de las más diversas corrientes, referidos a la bisexualidad y a la diferenciación sexual en los seres humanos

Psychopathology, treatment outcome and attitude toward mental illness in Mexican American and European patients.

Lower socio-economic European American and Mexican American psychiatric inpatients were compared on degree of psychopathology, response to treatment and attitude toward mental illness and hospitalization. The Mexican American patients were proportionately under-represented, but did not differ from the European Americans in degree of psychopathology at admission nor in response to treatment-both groups showing a high degree of improvement by both MMPI and clinical judgement. However, the Mexican American patients did have a significantly more negative view of hospitalization and treatment, viewing it as controlling and restrictive which may account for their lower proportion in the patient population.

Relationships between mental health treatment and medical utilization among low-income Mexican American patients: some preliminary findings.

The hypothesis that medical visits decrease as a function of mental health treatment was tested with a lower socioeconomic Mexican-American population. The number of medical and psychotherapy visits for all patients referred for mental health treatment during a specific period was obtained and analyzed in serveral ways to determine rate of medical visits as a function of psychiatric visits. Results indicated clear rejection of the hypothesis. Medical visits significantly increased rather than decreased. Factors which may account for these findings being opposite of previous studies are discussed and include previous poor medical service availability and socioeconomic differences in populations.

Mexican American and European Americal psychopathology and hospital course.

Demographic information, reason for admission, mental status on admission, hospital course variables, and discharge diagnosis were collected for 99 patients admitted consecutively to the psychiatric inpatient unit of a community mental health center serving a low-income population with a large proportion of Mexican-Americans; Patient ethnic distribution reflected that of the catchment area. Although ethnicity, sex, and social class each showed distinct characteristics, when any two of the factors were held constant, only three variables maintained significance, none of which indicated severe, flamboyant psychopathology. This study does not support earlier reports that hospitalized Mexican Americans are more severely disturbed than other ethnic groups.

Mental health patients in a Barrio health center.

Utilization by Mexican Americans of Mental Facilities of a Barrio area neighborhood health center, and demographic and symptom characteristics of this population were investigated. The findings suggest that contrary to other studies this program was able to reach a high risk Mexican American population frequently missed by mental health programs. The barrio location, the relationship to a neighborhood health clinic and a large proportion of Spanish speaking and local personnel, seemed to be factors in this result. The patients tended to be young adult women with marital problems, somatic complaints and depressive symptoms.