occurrence of malignant jaw tumors at the Egyptian cancer institute. A retrospective study from 1987-1991

Five hundred and ninety-one patients' files were studied for malignancy of the orofacial region at the period from 1987-1991, from the Egyptian Cancer Institute. It was found that the intrabony tumor presented 47.4% of all malignancy and the maxillofacial tumors presented 10.32% of the total cases. The male/female ratio was 2:1, with a mean age of 47.4 years old. The incidence of malignancy was higher in Upper Egypt and uncivilized areas

Histological and radiological study of the lower segment cesarean section scar and its impact on maternal health

Histological examination of the lower segment caesarean section scars taken from 100 women during repetition of caesarean section and using different types of staining showed that caesarean section scar healed by fibrous tissue formation. The amount of fibrous tissue varied from minimal amount in some cases to dense fibrous scars in other cases. Hysterographic study of the uterus 3 months after caesarean section for 20 cases was done compared to a control group of 10 cases. Post caesarean section cases showed some degree of deformity in only 2 cases, an incidence of 10% while other cases showed the usual smooth outline

Evaluation of aspiration biopsy cytology in the diagnosis of solitary thyroid nodule

Thirty nine patients [35 femals and 4 males] presenting with solitary non toxic thyroid nodule were admitted to El Hussein University Hospital on the period between September 89 to May 1991. They were subjected to full history and, clinical examination, serum T3 and T4 levels, ultrasonic and isotope scanning. Fine needle aspiration biopsy [Aspiration Biobsy Cytology, ABC] was done for every patient and the results obtained were compared with the results obtained by excisional biopsy. In our study the sensitivety for the presence of the tumour was 75% and when we added follicular adenoma as a positive for the tumour the sensitivity increased to become 86%. The specificity for the abscence of the tumour was 100% [there is no false positive cases] the false negative rate was 3.2% the positive predicitive value was 100%, the negative predictive value was 97%. The over all accuracy of ABC was 92.3%

Cardiac dysrhythmias during nasal surgery: a comparison with lignocaine-adrenaline and prilocaine-octapressin during halothane anesthesia

The incidence of cardiac dysrythmias and adequacy of haemostasis during nasal surgery under deep halothane anaesthesia were studied following nasal infiltration with 10 ml of either 1.5% lignocaine with adrenaline 1:200.000 or prilocaine 1.5% with octapressin 0.03 I.U. per ml. There was a significant difference [P < 0.05] in the incidence of cardiac dysrhythmias between patients given octapressin [2%] and patients given adrenaline infiltration [18%]. Adequate haemostasis was observed in 84% of patient who received octapressin with no adverse effects compared to 94% of the group who received adrenaline [P < 0.05]. We suggested for the use of lignocaine with adrenaline during halothane anaesthesia when adequate ventilation was assured; deep halothane anaesthesia was given, the infiltration was delayed 10 minutes after tracheal intubation, the rate of injection was adjusted at 10 ml in 10 minutes period and the total dose of adrenaline did not exceed 0.6 microg/kg