Estudos cirurgicos

This series of seventeen essays on various surgical subjects is the second of its kind published by Dr. Ribeiro of the Santa Catherina Hospital, São Paulo, Brazil. The series, based on ten cases observed by the author, opens with a study of "nervous caseation" observed in leprosy. In the neuritis of leprosy the peripheral nerves increase in volume, showing separate beady enlargements or perhaps necrosis followed by caseosis of coagulation. The different cases are classified according to the particular surgical method of treatment used. An essay on the serum treatment of acute appendicitis describes ten cases in which, according to the author, good results were obtained. Three studies are devoted to the consideration of hypertrophy of the pyloric muscle in adults, which the author thinks should be treated as a pathologic entity distinct from the hypertrophic stenosis of infancy. The clinical, radiologic, surgical and anatomopathologic aspects of the disorder are