Mesotelioma multiquístico benigno: primer caso reportado en Bolivia / Benign multicystic mesothelioma: first reported case in Bolivia

Hasta 2 013 sólo 130 casos de quistes mesentéricos habían sido descritos en el mundo, por lo que constituye un hallazgo bastante raro de diagnóstico difícil, por la sintomatología poco específica, sin hallazgos imagenológicos patognomónicos, que en todos los casos requiere un abordaje quirúrgico y estudio histopatológico. Presentamos el primer caso descrito en la literatura boliviana, de mesotelioma multiquístico peritoneal benigno en una paciente de sexo femenino, con cuadro de 3 meses de evolución, caracterizado por dolor y aumento de volumen en hipogastrio, asociado a dificultad para miccionar, con evidencia imagenológica de masa pélvica de origen vesical u ovárico, realizándose laparotomía exploradora y estudio histopatológico para determinar diagnóstico, presentó evolución favorable y fue dada de alta con sonda foley. Actualmente realiza controles regulares por ginecología oncológica y oncología clínica.

Until 2 013 only 130 cases of mesenteric cysts have been described in the world, which is a rare find with difficulties to diagnose by uns-pecific symptoms, without pathognomonic imaging findings, which in all cases require surgical approach and histopathological study. We report the first case described in Bolivian literature of bening peritoneal multicystic mesothelioma benign in a female patient with Table 3 months of evolution, characterized by pain and increased volume in lower abdomen, difficulty in urination associated with radiographical evidence bladder pelvic mass or ovarian origin, performing laparotomy and histopathological study to determine diagnosis the patients presented a favorable evolution and she was discharged with foley catheter. Currently she has regular controls by gynecologic oncology and clinical oncology.

A comparative, randomized trial of UFT and 5-fluorouracil in combination with cyclophosphamide and doxorubicin in the treatment of advanced breast cancer patients at The Philippines General Hospital.

A comparative, randomized trial was conducted to determine the efficacy of oral UFT (Tegafur and Uracil) versus 5-fluorouracil (5-FU) in combination with cyclophosphamide and doxorubicin in patients with metastatic breast cancer. Of 62 evaluable patients, 31 received UFT (350 mg/m2/day orally x 14 days), doxorubicin (50 mg/m2 intravenously [I.V.] day 1) and cyclophosphamide (500 mg/m2 I.V. day 1). The other 31 patients received 5-FU (500 mg/m2 I.V. days 1 and 8), doxorubicin (50 mg/m2 I.V. day 1), and cyclophosphamide (500 mg/m2 I.V. day 1). Regimens were repeated for a total of six cycles. The two groups were comparable in terms of age, gender, performance status, menopausal status, and number and sites of metastases. No statistical difference in overall response rates was seen (UFT arm, 48.4% vs. 5-FU arm, 35 %; p = 0.30). Median response duration was 16 weeks (range, 4-30) for both arms. The toxicity profile (alopecia, anemia, leukopenia, thrombocytopenia, diarrhea) was similar in both groups and both regimens were well tolerated. Anemia and stomatitis were significantly more common in the 5-FU arm (p = 0.02). Thus, oral UFT has response rates and duration of response that are comparable to 5-FU in a combination regimen for advanced breast cancer.

DNA evidence of the origin of Varroa jacobsoni Oudemans in the Americas.

Randomly amplified polymorphic DNA (RAPD) was used to examine possible origin of Varroa jacobsoni Oudemans in the Americas. Among 64 primers screened, 2 primers provided variation which was informative for this study. All V. jacobsoni collected from the United States had the same banding pattern to that of mites collected from Russia, Morocco, Germany, Italy, Spain, and Portugal (Russian pattern). This banding pattern was different from the pattern found for mites collected from Japan, Brazil, and Puerto Rico (Japanese pattern). The Japanese pattern lacked a 766-bp band found in the Russian pattern (OPE-07). With primer OPP-03, the Russian pattern had a distinct band at 442 bp not found in the Japanese pattern. Two bands located at 675 and 412 bp were specific to the Japanese pattern. These results suggest that the V. jacobsoni of the United States is probably predominantly Russian in origin (via Europe), while the V. jacobsoni of Brazil and Puerto Rico are probably predominantly Japanese in origin.

A P-selectin-immunoglobulin G chimera is protective in a rabbit ear model of ischemia-reperfusion.

BACKGROUND: Neutrophils have been shown to play a role in ischemia-reperfusion injury, and the initial interaction of neutrophils with the endothelium is mediated through the selectin family of adhesion molecules. Thus the purpose of these studies was to determine whether a P-selectin-IgG chimera was protective in a model of ischemia-reperfusion injury. METHODS: The model used was a rabbit ear model of ischemia-reperfusion. Selectin-IgG chimeras were given at the time of reperfusion of the tissue, and their efficacy was compared with an anti-CD18 antibody (MHM23). RESULTS: The P-selectin-IgG was as protective in this model as an anti-CD18 antibody. The chimera did not mediate its effect by causing the animals to become neutropenic. CONCLUSIONS: P-selectin plays a role in ischemia-reperfusion injury. This is in agreement with data from other groups. The fact that the chimera was effective in this model suggests that carbohydrates or small molecule mimics of carbohydrates would be effective in this model. Such antiinflammatory agents may have fewer side effects in terms of increased risk of sepsis.

Case study of a patient with severe nephrotic syndrome.

M.T. battled SLE for 9 years before renal failure occurred. She is now free of extrarenal symptoms of lupus, as has been described elsewhere (Ziff & Hilderman, 1983). The patient has regained here appetite, lost 13 pounds, recovered some strength and reestablished her social network. Without the severe proteinuria, M.T. has a chance to improve her nutritional status and increase her albumin. Her pulmonary status may also improve if she can refrain from smoking. Although fatigue is a debilitating feature of lupus, M.T. has increased stamina and is learning energy conservation techniques. Immediately after surgery, she did experience problems with bleeding, pneumonia, and pleural effusions, but the medical and nursing management prevented serious adverse outcomes. Fluid balance is no longer problematic, and M.T. is approaching her ideal body weight as her nutritional status improves. Her serum albumin has increased to about 2.6 gm/dl with some decrease in her proteinuria.