Masayuki Shiojima

Segmental Dilatation of the Ileum Covered Almost Entirely by Gastric Mucosa: Report of a Case

A 13-year-old boy was referred to our hospital for investigation of intermittent abdominal colic pain and vomiting. He underwent an emergency laparotomy, which revealed a volvulus and segmental dilatation of the ileum. The dilated intestine was not associated with poor intestinal circulation. Because the dilated ileum did not seem to be the cause of the volvulus, we simply released the volvulus. However, after surgery, the patient still suffered from persistent abdominal pain, further episodes of volvulus, and invagination of the dilated ileum. Thus, we performed a second operation to resect the segmental dilatation of the ileum. Pathological examination revealed that most of the mucosa of the dilated ileum was composed of ectopic gastric mucosa. We postulate that the ectopic gastric mucosa led to the formation of segmental dilatation of the ileum.

Mortality rate and bacteremia, endotoxin, and endothelin‐1 levels in antibiotic therapy for E. coli septic peritonitis

In order to study the mortality rate and bacteremia, plasma endotoxin, and plasma endothelin‐1 levels in antibiotic therapy for E. coli peritonitis, blood samples were obtained from rats given intraperitoneal injections of latamoxef or placebo. Intraperitoneal injections of latamoxef improved the prognosis of peritonitis rats. Two h after treatment, bacteremia levels were noticeably higher in rats treated with placebo than in rats treated with latamoxef, but the latamoxef‐treated group manifested a significant elevation of plasma endotoxin and endothelin‐1 levels compared to the placebo‐treated group. The results of this study demonstrate that treating E. coli septic peritonitis with selected antibiotics induces increased plasma endotoxin levels, which are associated with elevation of plasma endothelin‐1 levels.

A case of chondromatous tumor of the breast

This report describes an exceedingly rare case of a benign cartilage-containing breast tumor that developed in the right breast of a 52-year-old woman. She found the mass on self examination. Physical examination revealed a 1.5 x 1.4 cm, firm, smooth and mobile lump in the lower medial quadrant close to the nipple of the right breast.Mammography revealed a slightly indistinct margined, oval-shaped, and high density nodule without microcalcifications. On ultrasonography, the lesion was a hypoechoic, oval-shaped mass with an echogenic spot. The border was slightly rough. Fine needle aspiration cytology revealed some giant cells and necrotic tissue. Excisional biopsy was then performed. Histopathologically, the lesion consisted of islands of mature hyaline cartilage with intervening strands of fibrous stroma. Mammary lobules and ducts were lacking within the mass. Fat and muscular components were not present. Therefore chondromatous tumor of the breast was diagnosed.