ABSTRACT
The technique of prophylactic internal fixation (PIF) of the radial osteocutaneous donor site is described and reviewed. Twenty-two donor sites were reinforced with a 3.5mm dynamic compression plate across the anterior defect. The incidence of fracture was 4.5% (1 out of 22). The single fracture was due to a technical error and was managed conservatively. Fracture at a donor site that has not been plated is more frequent and often becomes displaced, requiring secondary surgery. In contrast, the incidence of fracture, displacement and secondary surgery following prophylactic internal fixation (PIF) is relatively low. There have been no significant long-term complications with PIF. It is now the method of choice for managing the radial osteocutaneous donor site.
Subject(s)
Radius Fractures/etiology , Radius Fractures/prevention & control , Tissue and Organ Harvesting/adverse effects , Bone Plates , Bone Transplantation/adverse effects , Humans , Retrospective Studies , Skin Transplantation/adverse effectsABSTRACT
The case of a giant-cell epulis as an initial feature of primary hyperparathyroidism is presented. A 58-year-old woman appeared for dental treatment with a buccal alveolar swelling that was confirmed by means of biopsies to be a multinucleated giant-cell lesion. High calcium levels warranted investigation for a parathyroid adenoma, which was located in an ectopic position and surgically removed. This case delineates the importance of referring patients with oral lesions of doubtful cause to specialists for further diagnostic workup.
Subject(s)
Gingival Diseases/etiology , Granuloma, Giant Cell/etiology , Hyperparathyroidism/complications , Adenoma/complications , Adenoma/diagnosis , Biopsy , Calcium/blood , Choristoma/diagnosis , Female , Gingival Diseases/pathology , Granuloma, Giant Cell/pathology , Humans , Hyperparathyroidism/blood , Maxilla , Mediastinal Diseases/diagnosis , Middle Aged , Parathyroid Glands , Parathyroid Neoplasms/complications , Parathyroid Neoplasms/diagnosisABSTRACT
Soft tissue chondromas are rare benign tumours unrelated to bone that arise primarily in the distal extremities. Lesions in the soft tissues of the oral cavity are extremely rare although several chondromatous lesions have been reported in the tongue. A case is presented of a chondroma arising in the buccal mucosa. It was composed of a lobulated mass of myxoid tissue showing central areas of chondroid differentiation. Immunocytochemistry confirmed the lesion to be mesenchymal and not epithelial in origin. In the differential diagnosis it is important to exclude chondromatous change in a pleomorphic adenoma and also the possibility of a metastasis from an osseous chondrosarcoma.
Subject(s)
Cheek/pathology , Chondroma/pathology , Mouth Mucosa/pathology , Mouth Neoplasms/pathology , Female , Humans , Middle Aged , S100 Proteins/analysis , Vimentin/analysisABSTRACT
A case of facial sinus formation secondary to calculus obstruction of the parotid duct is reported. The aetiology and management of this condition are discussed.
Subject(s)
Face , Parotid Diseases/etiology , Salivary Duct Calculi/complications , Salivary Gland Fistula/etiology , Skin Diseases/etiology , Aged , Humans , Male , Parotid Diseases/complications , Parotid Diseases/surgery , Salivary Duct Calculi/surgery , Salivary Gland Fistula/surgery , Skin Diseases/surgeryABSTRACT
A case is reported of a papillary cystadenocarcinoma of the sublingual gland which presented as a ranula. This is both rare in site and mode of presentation.
Subject(s)
Cystadenocarcinoma/diagnosis , Mouth Floor/pathology , Ranula/diagnosis , Sublingual Gland Neoplasms/diagnosis , Adult , Diagnosis, Differential , Humans , MaleABSTRACT
We studied lens opacification of rabbit lenses in culture. Opacification was produced by maintaining rabbit lenses in medium containing calcium concentrations as high as 10 mmol/l and the opacity was measured using LASER spectroscopy. Increasing calcium caused significant opacification in lens cortex while the transparency in lens nucleus was unchanged by these concentrations. The cortical opacity was inhibited by low temperature and acrylamide. The maximum inhibition of opacity occurred at a concentration of 1% acrylamide and a temperature of 4 degrees C. The opacification due to a phase separation in nuclear cells was unaffected by these concentrations of calcium.
