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The first case of human liver infestation due to liver fluke in Sicily is reported. After a clinical review of parasitosis, the autochthonous nature of the case is mentioned to highlight its epidemiological and prophylactic importance, especially in those regions where climatic conditions and living and working habits favour infestation. Finally, attention is called to diagnostic difficulties, treatment and appropriate hygiene and dietetic measures.

On the basis of a study of the most recent clinico-statistical contributions on diverticula of the duodenum and personal experience, based on observation of 72 cases, the Authors set out a modern review of the subject. After emphasizing that diverticula of the duodenum are responsible for clinically evident and uncharacteristics sympatoms in only about 10-20% of cases, the Authors discuss the most modern procedures for diagnosis of diverticula of the duodenum. Lastly there is a full discussion of the indications for operation and the different surgical possibilities for treatment of the disease.

It is by now an established fact that the status of the immune system stands in some relationship with the onset and evolution of malignancy. To clarify this relationship the authors investigated the immune system of patients with pulmonary carcinoma, with special regard to the functions of the T and B lymphocyte lines. After suitable explanation of their experimental protocol, which involved immunological monitoring and the study of relationships between immunological changes and the extent and histological type of malignancy, and also the effects of any treatments being administered, the authors describe the results obtained in 18 preoperative patients. The study revealed an overall diminution of cell-mediated immune activity: less strongly positive DNCB skin tests, reduced capacity for making E rosettes, reduced blast transformation with PHA. With B lymphocytes the EA rosette test was often depressed, whereas antibody titers were normal or even above normal, and the pokeweed blast test was invariable above normal values. These preliminary results show that at the time of diagnosing malignancy, the greater aggressiveness characteristic of the less differentiated cellular types, or of stages of diffuse malignancy, is associated with overpowering of cell defenses and (within certain limits) enhancement of the humoral response.

After a brief recall of the main problems of post-colostomy patients, the authors describe the method of colonic irrigation, which affords the complete discharge of fecal matter and continence over the ensuing 24 hours. The authors give an account of the results obtained with this methodology at the Stoma Center of Catania; and they conclude that the method in question, applied correctly and appropriate cases, seems to represent the treatment of first choice for the postoperative management of colostomy cases.

Reference is made to the nosographical classification of intrathoracic goitre and the difficulties associated with its diagnosis. Particular attention is devoted to the correct surgical technique required. Surgery is mandatory in mediastinal cases on account of the slow and gradual progression of the swelling and exacerbation of the symptoms, and also because complications may supervene (cancer, intraparenchymal haemorrhage, etc.). The approach routes are discussed, along with the conditions requiring resort to a complementary route--usually median sternotomy--in addition to cervicotomy.