Spread of squamous cell carcinoma of the lower lip along the inferior alveolar nerve: a case report.
Explore the source record for details and available documents.
Carcinoma, Squamous Cell↗
Biomedical subjects
A Zupi
Publications and source records attributed to A Zupi.
[Sialolithiasis. Observations on 155 cases].
Explore the source record for details and available documents.
Adult↗
Mandibular lengthening by external distraction: an experimental study in the rabbit.
OBJECTIVE: To observe the development of bone at different times during the period of mandibular lengthening by external distraction using Ilizarov's transosseous osteosynthesis technique. MATERIALS AND METHODS: Fifteen rabbits, 2 to 3 kg in weight, were used for this experiment. The left side of the mandible was exposed and a corticotomy was performed with a water-cooled drill. After 12 hours, distraction was started and continued 1 mm per day for 2 weeks. Plain radiography and three-phase bone scan scintigraphy were performed on the 1st, 7th, and 14th postoperative days. The mandibles were then either removed for immediate histologic evaluation or after 2, 5, or 8 weeks of postdistraction fixation. RESULTS: Elongation of up to 11 mm was achieved. Radiographic and scintigraphic evaluation suggested a residual inflammation on the 7th day and definite ossification on the 14th day. Histologic observations of the distraction site showed a gradual change from an amorphous matrix to a fibrous matrix and, finally, an osseous-like tissue. CONCLUSION: Bone lengthening by gradual distraction is commonly used in tubular bones. To achieve mandibular lengthening it is necessary to resolve many problems. Morphologic, radiographic, scintigraphic, and histologic observations confirm that mandibular lengthening by external distraction is possible, with the formation of new bone tissue.
Animals↗
Lymph-node metastasis in squamous cell carcinoma of the lip. A retrospective analysis of 105 cases.
During 1975-87, 105 patients with squamous cell carcinoma (SCC) of the lip were surgically treated. All patients underwent radical resection of the tumor. Only the patients with palpable lymph nodes had a simultaneous neck dissection. All patients were followed up for at least 5 years. Of the 80 patients without palpable lymph nodes, only three developed lymph-node metastasis. Of the 25 patients with palpable lymph nodes who underwent modified neck dissection, four had recurrence of lymph-node metastasis at a different level. The over-all 5-year survival rate was 97%. The survival rate for patients with lymph-node metastasis was 88%.
Aged↗
Hemangiomas of the maxillofacial area. Usefulness of 99Tcm-labelled red cell scintigraphy.
Recent work reports the usefulness of radionuclides in the study of hepatic hemangiomas. In particular, 99Tcm-red blood cell (RBC) scintigraphy is useful to evaluate the vascularization and to plan the therapy. The aim of this paper is to confirm the usefulness of 99Tcm-RBC scans in the detection and follow-up of maxillofacial hemangiomas. Results using this technique in a selected group of patients with maxillofacial hemangiomas are reported.
Adolescent↗
[Calcifying odontogenic epithelial tumor or Pindborg's tumor. Apropos of a case].
Calcifying odontogenic epithelial tumor is a rare affection, representing only 1% of all odontogenic tumors. Histology shows polyedral epithelial cells, organised in layers, strands or nests or, more rarely present as individual cells. The cell nuclei are polymorphic and hyperchromatic with projecting nucleoli. An amorphous substance presenting specific immunohistochemical characteristics surrounds the cellular elements. It appears to be related to amyloid and is also considered to be the product of degeneration of the cell basal lamina and/or the product similar to the dentine or cement of the tumor cells. Surgical treatment varies from simple enucleation to more or less partial resection of the affected bone.
Adult↗
Accuracy in the diagnosis of parotid tumours.
Parotid lesions are often not easily classified. Important information is gathered by conventional and instrumental investigation. But these data are often insufficient to make a correct diagnosis. The authors have compared these techniques. In particular, they have evaluated their accuracy in identification of site and histology. 60 patients with parotid tumours underwent the same instrumental diagnostic techniques (echography, sialography, computed tomography and fine needle aspiration biopsy). In regard to the identification of the site, the highest percentage was achieved by computed tomography (98%). Echotomography has shown an accuracy of 83%, and sialography 87%. Fine needle aspiration biopsy has allowed the definition of the histiotype in 98% of cases. Computed tomography, echotomography and sialography have not allowed the definition of histiotype in malignant tumours, but in the case of benign tumours computed tomography has permitted a diagnosis in 29 cases (57% of benign tumours). Echotomography and sialography in 25 (49%) and 26 cases (51%), respectively.
Adenocarcinoma↗
Enteral nutrition in maxillo-facial surgery.
Authors report their experience in enteral nutrition (E.N.) on maxillo-facial surgery. From 1987 to 1989, 24 patients were subjected to enteral alimentation in the Department of Maxillo-Facial Surgery of the 2nd School of Medicine of "Federico II" University of Naples (Italy). 50% of patients suffered from head and neck tumours, and 50% suffered from traumatic lesions. Before treatment, patients' nutritional conditions were evaluated by anamnesis, azotic balance, hydroelectrolytic balance, anthropometric, bioumoral, and immunologic parameters. Basal energy expenditure was calculated through Harris-Benedict formula. Patients were checked every week, and E.N. allowed a rapid and adequate caloric increase.
Adult↗
[Pathological fracture of the mandible: a report of a clinical case treated with clodronate].
Oral squamous cell carcinoma often invades the mandible. However, the incidence of pathological fractures of the maxillofacial bones is low and their treatment is rarely satisfactory. A patient, too weak to undergo surgery, affected by squamous cell carcinoma of the mandibular region with bone involvement and pathological fracture of the mandible, underwent chemotherapy with carboplatin associated with diphosphonate.
Aged↗
[Benign parotid lymphoepithelial cysts associated with HIV infection].
HIV infections are often related with lymphoepithelial benign cysts of the parotid gland; these lesions are uncommon and other salivary glands are rarely involved. The diagnosis, often difficult, is based on imaging techniques, like computed tomography, and pathologic techniques, like fine needle aspiration biopsy. The therapeutic approach can be performed by simple aspiration, surgical resection, pharmacotherapy, or radiotherapy. Three cases of HIV-related lymphoepithelial benign cysts of the parotid gland observed at the Department of Maxillofacial Surgery of the "Federico II" University of Naples and at the Department of Oral and Maxillofacial Surgery of "La Paz" Hospital of the Universitad Autonoma of Madrid are described.
Adult↗
Indication for neck dissection in carcinoma of the parotid gland. Our experience on 39 cases.
In cases of parotid carcinoma, the percentage of cervical metastases, at the time of first observation is 18%. Consequently, the evaluation of the grade of lymphatic involvement is very important in order to plan a correct therapy. The authors underline the important role that neck dissection has in the treatment of these tumours. There are different points of view on neck dissection in cases of malignant parotid tumours. While there is no doubt with regard to indications on neck dissection in N + patients, the problem does exist for N-patients. The Authors have analyzed 39 patients with malignant parotid tumours observed at the Department of Maxillo-Facial Surgery of the "Federico II" University of Naples.
Adenocarcinoma↗