Damante José Humberto, Chinellato Luiz Eduardo Montenegro, Oliveira Fernando Toledo de, Soares Cleverson Teixeira, Fleury Raul Negrão
Department of Oral Medicine, Bauru Dental School, University of São Paulo, Brazil.
Braz Dent J. 2011;22(2):166-70. doi: 10.1590/s0103-64402011000200014.
Cutaneous Larva migrans is a very common disease in tropical regions. In the oral mucosa, the infection occurs in the same way as in the skin, but it is rarer. This report describes two cases of Larva migrans in the oral mucosa. The first case was in a 27-year-old woman who presented an erythematous plaque located on the buccal mucosa, extending to a posterior direction, following a linear pattern, to other areas of the mouth. After incisional biopsy of the anterior-most portion of the lesion, morphological details obtained in multiple examined sections suggested Necator or Ancylostoma braziliense larvae as the cause of infection. The second case was in a 35-year-old male who presented a fusiform erythematous plaque in the palatal mucosa. This area was removed and submitted to microscopic examination under a presumptive diagnosis of "parasite migratory stomatitis". The histological characteristics were suggestive of a larva pathway. In both cases the lesion disappeared after biopsy and the patients were symptom-free.
皮肤幼虫移行症是热带地区一种非常常见的疾病。在口腔黏膜中，感染的发生方式与在皮肤中相同，但较为罕见。本报告描述了两例口腔黏膜幼虫移行症病例。第一例是一名27岁女性，其颊黏膜出现红斑性斑块，呈线性向后延伸至口腔其他部位。对病变最前端进行切开活检后，多个检查切片获得的形态学细节提示感染原因是钩虫属或巴西钩口线虫幼虫。第二例是一名35岁男性，其腭黏膜出现梭形红斑性斑块。在初步诊断为“寄生虫移行性口炎”的情况下，切除该区域并进行显微镜检查。组织学特征提示有幼虫移行路径。两例患者活检后病变均消失，且无症状。
