Dreyer, Research FINAL C.indd
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Amaury Coutinho, Brazil; Denise Mattos is a Social Worker at Servico Social, Hospital das Clinicas, Universidade Federal de Pernambuco, Recife-PE, Brazil; Renato Lins is Bachelor in Science at NGO Amaury Coutinho; Habib Fraiha is Professor in Tropical Medicine at the Federal University of Para, Brazil Myiasis is a condition seen in both animals and humans caused by parasitic fly larvae feeding on the host’s tissues. Cutaneous myiasis is the most frequently encountered clinical form. It is further subclassified according to the nature of its clinical manifestation, such as furunculoid (subcutaneous infestation with tunnel formation), wound infestation, and subcutaneous with migratory swellings (White, 2003). Opportunistic invasion of wounds by fly larvae is seen sporadically in nursing homes (Chan et al, 2005) and hospitals (Lukin, 1989). A proportion of patients may have underlying problems, such as diabetes or peripheral vascular disease, debilitation or old age. Although Wuchereria bancrofti — the parasite that causes lymphatic filariasis (LF) — does not directly or indirectly provoke any kind of skin wounds (Dreyer, personal communication), oedema/lymphoedema patients living in endemic areas may have wounds due to other causes such as varicose ulcers and mossy lesions (lymphangiomatosis). These wounds are ideal sites for parasitic larvae to lay their eggs, leaving these patients at risk of wound myiasis
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Granulation tissue is a transitional replacement for normal dermis, which eventually matures into a scar during the remodelling phase of healing. It is characterised from unwounded dermis by its extremely dense network of blood vessels and capillaries, elevated cellular density of fibroblasts and macrophages and randomly organised collagen fibres (Ovington and Schultz, 2004). Healthy granulatio...
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