Biomedical subjects

R A Th Gortzak

Publications and source records attributed to R A Th Gortzak.

3 recordsLinked to original sources

PubMed2006

Limited regression of central giant cell granuloma by interferon alpha after failed calcitonin therapy: a report of 2 cases.

Central giant cell granuloma (CGCG) is a benign lesion of the jaws with a sometimes locally aggressive behaviour. The most common therapy is surgical curettage which has a high recurrence rate, especially in lesions with aggressive signs and symptoms (i.e. pain, paresthesia, root-resorption and rapid growth). Alternative therapies such as interferon alpha (INFalpha) or calcitonin are described in the literature. In this study 2 patients with an aggressive CGCG are presented who were treated with INF mono-therapy. INF mono-therapy was capable of terminating the rapid growth of the lesion in both patients and induced a partial reduction. Total resolution, however, was not obtained and alternative treatment is still necessary.

Adolescent↗

PubMed2006

Growth characteristics of large mandibular ameloblastomas: report of 5 cases with implications for the approach to surgery.

The aim of this study was to establish surgical guidelines based on the growth pattern of ameloblastomas in relation to the possible infiltration of the cortical bone, the inferior alveolar nerve, the periosteal layer and the surrounding soft tissues. Five male patients with voluminous mandibular ameloblastomas were treated by means of radical surgery. Ameloblastomas showed an invasive growth pattern in the cancellous bone with small tumour nests at a maximum distance of 5mm away from the bulk of the tumour. Expansive and invasive growth in the Haversian canals was observed. There was no invasion of the inferior alveolar nerve. The mucoperiosteal layer was invaded but not perforated. No invasion was observed in the surrounding soft tissues of the periosteum and in the skin tissue. A local resection with a surgical margin of spongious bone of 1cm is suggested. When the tumour is radiologically closer than 1cm to the inferior border of the mandible, a continuity resection is mandatory. A conservative approach concerning the inferior alveolar nerve is suggested. Removal of an excess of perimandibular soft tissue is not indicated. The overlying attached mucosal surface should however be excised together with the underlying bone.

Adolescent↗

PubMed2005

[Using corticosteroids to prevent postoperative oedema].

Corticosteroids are produced in the adrenal gland cortex and are subdivided in mineralocorticosteroids and glucocorticosteroids. Usually, corticosteroids are prescribed as drugs to replace natural corticosteroids in case of insufficient functioning adrenal glands and in numerous diseases because of their anti-inflammatory and immunosuppressive effects. Based on literature data, it was concluded in this article that corticosteroids are never indicated as a preventive measure in regular dentistry and oral and maxillofacial surgery. Only in cases of major elective oral and maxillofacial surgery, prescription of corticosteroids may be considered.

Adrenal Cortex Hormones↗