Nicholas C. Choukas

Fissural cysts of the palate

Abstract Fissural cysts of the palate, whether median platine or nasopalatine, are of nonodontogenic origin and are located in the midsuture area of the hard palate. The difficulty in arriving at a definitive diagnosis is due to the fact that both the median palatine cyst and the nasopalatine cyst are located in the midsuture line of the hard palate. Whenever these cysts enlarge peripherally and/or involve adjacent anatomic areas, the radiographs demonstrate a large radiolucent area which extends beyond the characteristic boundaries of either the nasopalatine or median palatine cyst.

Sclerosing cavernous hemangioma of the maxilla: Report of a case

Abstract A case of sclerosing cavernous hemangioma of the maxilla has been presented. To the best of our knowledge, this is the first such case reported in the literature.

The proliferative capacity and DNA synthesis of osteoblasts during fracture repair in normal and hypophysectomized rats

P recursor cells preparing for mitosis may be radioactively labeled so that the subsequently differentiated cells can be identified. Tritiated thymidine specifically labels deoxyribonucleic acid during the synthesis period. Tonna,l in a study primarily concerned with aging, fractured the right femurs of albino Swiss mice of varying ages and killed the animals at intervals of 24 hours, 1 week, and 2 weeks. One hour prior to sacrifice, “flash” labeling of the cells was obtained by subcutaneous injection of tritiated thymidine. Tonna observed that osteogenic cells of the periosteum were most frequently labeled, although the number of labeled cells decreased with age. However, by 24 hours after fracture there was an increase in the population of labeled cells, even in mice 52 weeks old. Also, labeled cells were most numerous when osteogenic or chrondrogenic cells from the periosteum were actively converting the fracture callus into cartilage, Tonna concluded that the potential for fracture repair resides essentially in the proliferative capacity of the cells of the periosteum, which diminishes with age. This reduced capacity accounts for the reduction in the rate of fracture repair in older animals. According to Enoch and Coventry, 2 the periosteum consists of an outer layer of collagenous fibers, in which most of the cells are fibroblasts, and an inner layer composed of single fusiform cells in the resting state. The latter becomes a multicellular layer of plump osteoblasts when bone fracture occurs.

Metastatic breast carcinoma mandible in gynecomastia gynecomastic: Case report

This is a rare case of breast carcinoma with metastasis to the jaw in a relatively young man with gynecomastia. Immunohistochemical studies suggest a stage differentiation arrest in ductal cells.

Granular cell myoblastoma of the soft palate: Report of a case

Abstract Report of a case of granular cell myoblastoma of the soft palate. This is the first report of such a lesion in the soft palate and serves to support the muscle origin of granular cell lesions.

Sequential Electron Microscopic Healing Study of Grafted Palatal Mucosa

At the ultrastructural level, regeneration of frozen and thawed human palatal autogenic grafts is almost complete 30 days posttransplantation. A sequential study of the regenerative process, which is effected via the basal cell layer, as well as a description of newly formed structures observed in the tissue are discussed.

Fibrolipoma of the buccal mucosa

Abstract A case of a fibrolipoma of the buccal mucosa has been reported, and a concept of origin of such tumors has been presented.

Lymphosarcoma of the maxilla

Abstract An unusual case of lymphosarcoma of the maxilla in a 39-year-old white man has been reported. The difficulty of arriving at an accurate pathologic diagnosis with small biopsy specimens has been described, and the method of treatment has been presented.

An unusual complication possibly arising from the surgical recontouring of fibrous dysplasia of the mandible

Abstract We have presented an interesting case of mandibular pathosis. A lytic lesion in the mandibular ramus appeared to be a sequela in the management of the original disease of monostotic fibrous dysplasia.

Actinomycosis of the mandible.

Abstract 1. Actinomycosis of the mandible can be easily misdiagnosed in its acute or early stage. 2. Improperly sterilized dental instruments may be the source of cross-contamination in actinomycosis. 3. Actinomycosis is not restricted to rural folk or to those who have a history of chewing grass or straw. 4. The diagnostician should avail himself of the full use of all the culture and sensitivity tests in order to confirm an early diagnosis and thereby improve the prognosis of the case. 5. Actinomycosis should always be considered in a differential diagnosis of all infections of the cervicofacial area. 6. Adequate therapy for cervicofacial actinomycosis involves prompt and adequate incision and drainage and penicillin in sufficient doses.