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2013 ; 88
(6
): 1212-6
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Histopathological features of tungiasis in Peru
#MMPMID23478579
Maco V
; Maco VP
; Tantalean ME
; Gotuzzo E
Am J Trop Med Hyg
2013[Jun]; 88
(6
): 1212-6
PMID23478579
show ga
Tungiasis is an ectoparasitic skin disease caused by Tunga penetrans and Tunga
trimamillata. There is a lack of histopathological studies that evaluate the
recognition of this flea in tissues. We describe the ex vivo dermoscopic and the
histopathological patterns of six cases and relate the findings to the
developmental stage of the parasite as defined by the Fortaleza classification:
two were classified as Fortaleza 3b, 3 as 4a, and 1 as 4b. Two dermoscopic
patterns were observed: a brown pigmented ring and a radial crown with a central
pore. The most common histopathological findings were an eosinophilic cuticle,
eggs in different stages of development, tracheal rings (parasite), and basal
hyperplasia (host). The eosinophilic cuticle, eggs in different stages of
evolution, and tracheal rings can help to establish the diagnosis when other
parts of the parasite are lacking. The Fortaleza staging may represent a tool for
pathology reporting purposes.
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