Mycobacterial Lymphadenitis

Space‐occupying Lesion Within the Calvarium of a Cat

“…These organisms include Mfortuitum, M che‐lonae, M marinum, M ulcerans , and M smegmatis 2,5,6 . Lesions resulting from infections with these mycobacteria typically are cutaneous granulomas or draining tracts resulting from wound contamination 7 …”

“…Molecular techniques, which identify slow‐growing bacteria such as Mycobacterium via genotypic characteristics, have provided a significant diagnostic advancement over the past several years. These techniques are typically more rapid and sensitive than phenotypic characterization, which can take as long as 6 weeks 7 . The BACTEC system shortens the time typically required to culture mycobacterial organisms to 8–14 days 1…”

Human Carcinogenesis and Bracken Fern: A Review of the Evidence

“…ptaquiloside (1) (Fig. (1)) was finally isolated simultaneously in Japan and the Netherlands [38,39].…”

“…If bracken is somehow contributing to cancer incidence, it should be associated chiefly with two groups of organs:1) Respiratory neoplasias due to breathing carcinogenic spores [1,[72][73][74][75] that are produced by bracken swards in vast numbers and are carried long distances by the wind [76] becoming a malignant contributor to the particulate matter that enters the lung. 2) Organs of the upper alimentary tract in which swallowed spore carcinogens and bracken frond illudanes would have a higher chance of forming adducts with epithelium cells before being destroyed by acidic and/or alkaline media along the mid digestive tract.…”

“…In such low concentrations their lethal function focuses on specific target host cells or invading microorganisms en lieu of more structured tissues and organs. This is precisely the case of bracken fern (Pteridium sp) whose carcinogenic potential and other undesirable effects on farm animals has been known for a long time [1,2 ]but evidence linking this plant to human health issues has being strengthened only recently by epidemiological correlations [3][4][5][6] and significant advances in the chemical reactions between one of its most notorious components, ptaquiloside, and DNA [7][8][9][10][11][12]. Other bracken compounds such as quercetin and tannins also have attracted attention as they may interact with human tissues in combination with etiogical agents such as viruses [13].…”