PDF: Larva migrans in the oral mucosa: report of two cases

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.

larva-oral-mucosa


This report describes two cases of Larva migrans in the oral mucosa. 

Read also: PDF: HELICOBACTER PYLORI in the dental plaque: Is it of diagnostic value for gastric infection?

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.

Domesticated or wild animals have many parasites whose infectious larvae are capable of completing their life cycle only inside their natural host. When these larvae infect a different host, including humans, they are usually not able to grow properly. In these cases, the larvae may migrate through the visceral or subcutaneous tissue, causing lesions in the skin or mucosa.




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