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Biomedical subjects

P A Pullon

Publications and source records attributed to P A Pullon.

At least 19 recordsLinked to original sources

Cementomas--aggressive or innocuous neoplasms?

No class of tumor is so inadequately discussed in the otolaryngology literature as the "cementomas". Until recent years, four distinctly different benign fibro-osseouslesions containing cementum were clumped together under the heading of cementoma. The separate entities in this tumor class are benign cementoblastoma (true cementoma), cementifying fibroma, peripical cemental dysplasia, and gigantiform cementoma (florid osseous dysplasia). Only an occasional case of the gigantiform variant or an unusually aggressive cementifying fibroma requires an extensive operation for complete excision.

Adolescent

Survey of tissue diagnostic services in United States dental schools, 1953-1975.

A survey of tissue diagnostic services in United States dental schools was conducted, covering the services' activities during 1975. This survey was compared to similar surveys made in 1953, 1958, and 1969. Most significantly, many more biopsies are being processed, with a great increase in the number of malignant specimens. As could be expected, higher fees are being charged by the schools for processing specimens.

Biopsy

Computer utilization in an oral biopsy service.

In order to improve our knowledge about the biological activity of oral lesions, a computer-based system of oral biopsy data recall has been established. The program is utilized in eight United States dental schools and is adaptable to almost any oral biopsy service with an available computer. This article deals with the implementation of the program at Washington University School of Dental Medicine.

Biopsy

Sweat gland carcinoma of the lips.

Sweat gland carcinomas are extremely rare tumors with a fully malignant potential. Two cases of primary sweat gland carcinoma of the lips are presented. Because of the unique nature of this lesion, the histopathology and biologic behavior are discussed, and the pertinent literature is reviewed.

Adenocarcinoma

Squamous odontogenic tumor. Report of six cases of a previously undescribed lesion.

Six cases of a previously unnamed oral lesion are described and the name squamous odontogenic tumor is applied. The lesion causes radiolucent areas of bone destruction adjacent to the roots of teeth. In one case there were multiple separate lesions. Light microscopy revealed numerous islands of benign squamous epithelium with focal areas of keratinization and calcification. Electron microscope examination in one case showed normal squamous epithelial cells with abundant glycogen granules, tonofilaments and myelin bodies. Complete surgical excision seems the best therapy, as only one lesion recurred following treatment.

Adult

A study of the perceptions of dental deans toward formal administrative training.

In order to understand better the attitudes of dental deans toward formal administrative training, a questionnaire was devised which asked for both personal and opinion data. Questionnaires were mailed to 209 persons with the title of "dean" at the 58 institutional members of the American Association of Dental Schools. Replies were received from 167 respondents (80%), and the replies were subdivided into the categories of dean, associate dean, and assistant dean, according to each respondent's stated position. Personal data on the questionnaire included the respondent's age, sex, and education, as well as information on his current position. Additional data on the questionnaire were concerned with the respondent's opinion on the value of formal administrative training for someone in his position, and what specific areas of training would be most valuable. In addition, the respondents were asked to rank formal training against other methods of gaining experience and to make appropriate comments. The majority of respondents felt that formal administrative training would be of value and that such factors as decision-making and leadership behavior training would be very valuable. The respondents felt that formal administrative and teaching experience would be even more helpful.

Adult