Mucoepidermoid carcinoma in an "anal fistula" with associated adenocarcinoma in a villous adenoma of the descending colon: report of a case.
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Adenocarcinoma↗
Biomedical subjects
E Weiner
Publications and source records attributed to E Weiner.
[Diffuse fasciitis after Borrelia infection--a case report].
Diffuse fasciitis (DF) [diffuse fasciitis with eosinophilia-Shulman's syndrome] has occasionally been linked to a precedent infection with Borrelia burgdorferi. Here, we report on another case of DF in a 25 year old male, in whom Borrelia burgdorferi infection as possible inciting agent could be identified based on the patient's history and laboratory data. Efforts to microscopically demonstrate spirochetes or to amplify Borrelia-DNA by nested PCR in lesional tissue failed after antibiotic treatment had already been initiated. Although only a few cases of Borrelia associated diffuse fasciitis have been reported in the literature, the link between typical signs and symptoms as well as laboratory findings of Borrelia infection and the onset of diffuse fasciitis, starting at the primary site of EM, provide indirect evidence for a causative role of Borrelia burgdorferi as a potential infectious agent for DF.
Adult↗
Cox-2-specific inhibitors: definition of a new therapeutic concept.
Nonsteroidal anti-inflammatory drugs have been a mainstay in the treatment of inflammatory diseases such as rheumatoid arthritis. However, these agents can result in severe and occasionally life-threatening adverse effects that can limit therapeutic benefit. Progress toward safer anti-inflammatory therapy was aided by the discovery that cyclooxygenase (COX) exists as two isozymes, COX-1 and COX-2. Both isozymes form prostaglandins that support physiologic functions; however, the formation of proinflammatory prostaglandins is catalyzed by COX-2. Inhibition of COX-2 accounts for the anti-inflammatory and analgesic action of NSAIDs; however, concurrent inhibition of COX-1 inhibits prostaglandin-dependent mechanisms such as gastroduodenal mucosal defense and platelet aggregation. This inhibition is the basis of the gastrointestinal toxicity and bleeding characteristic of these drugs. These findings led to the hypothesis that agents that selectively inhibit COX-2 would possess anti-inflammatory and analgesic action but would spare COX-1, thereby avoiding adverse effects in the gastrointestinal tract and platelets. Selective COX-2 inhibitors are now available. The novelty of these agents has raised questions in the medical community as to what constitutes selectivity for COX-2. This review outlines the criteria that must be met to characterize a compound as COX-2-specific. Clinical evidence of clear improvement in gastrointestinal tolerability and safety must be demonstrated in addition to complementary evidence of COX-2 selectivity obtained from enzyme, biochemical, and clinical pharmacology evaluations.
Anti-Inflammatory Agents, Non-Steroidal↗
Third generation dentin bonding agents: a microleakage study.
This article examines and compares the extent of microleakage after 24 hours in freshly extracted teeth using three newer or "third generation" dentin bonding agents. Gluma/Pekalux and Scotchbond 2/Silux were more effective in preventing microleakage in cementum/dentin margins than was Universal Bond/Prisma Micro-fine.
Adhesives↗
Direct fetal administration of immunoglobulins: another disappointing therapy in alloimmune thrombocytopenia.
Current management strategies to prevent fetal intracranial haemorrhage in perinatal alloimmune thrombocytopenia (PAIT) include serial platelet transfusion and/or maternal high-dose intravenous immunoglobulin (IVIG) administration. The former involves multiple invasive procedures, while the latter is both expensive and of questionable efficacy. We report the use of direct fetal IVIG in 2 fetuses with PAIT, undergoing serial intrauterine platelet transfusions. Fetal IVIG had no effect on fetal platelet count. We conclude that direct fetal IVIG administration does not appear to have a role in the management of PAIT, and that current management strategies remain far from ideal.
Adult↗
Interactive videodisc production in a university environment.
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Computer-Assisted Instruction↗
Cytologic findings in progressive multifocal leukoencephalopathy. Report of two cases.
Cytologic preparations from two cases of progressive multifocal leukoencephalopathy (PML) were obtained by stereotactically guided needle biopsies using computerized tomograms of the brain. Case 1 was a 32-year-old man with an acquired immunodeficiency syndrome-related complex. Case 2 was a 71-year-old man with chronic lymphocytic leukemia. Smears showed moderate cellularity, consisting of moderately to markedly atypical cells with enlarged hyperchromatic nuclei. The chromatin pattern showed smudging, with or without clumping, similar in pattern to the human polyomavirus-infected "decoy" cells seen in urine cytology. Nuclei were predominantly round to oval, smoothly contoured and often stripped of cytoplasm. Occasional bizarre lobulated or multinucleated forms were seen. Some atypical cells had abundant cytoplasm exhibiting stellate projections. Histologic sections of the biopsy material confirmed the diagnosis in each case. In both cases, electron microscopy demonstrated intranuclear polyoma-type virus particles. The present findings suggest that PML should be considered in the differential diagnosis of marked cytologic atypia in brain aspirates from immunocompromised patients.
AIDS-Related Complex↗
Vaginal bleeding: presenting symptom of acquired primary hypothyroidism in a seven year-old girl.
A seven year-old girl who presented with vaginal bleeding and a right ovarian cyst was diagnosed as having acquired primary hypothyroidism. She had menstruation in spite of a delayed bone age, absence of pubertal growth spurt and lack of adrenarche. Elevated levels (age-matched) of gonadotropins, normal levels of estradiol, and hyperprolactinemia were documented. The clinical and laboratory findings were reversed by thyroxin treatment. The clinical presentation in this case, and other similar descriptions in the literature, support the mechanism of pseudo-precocious puberty in untreated hypothyroidism.
Child↗