XXXX : a case report and review of the literature.

@entity1 @entity511 @entity5 @entity281 @entity5472 @entity690 @entity4801
@entity5472 is an extremely rare @entity4801 in which the larvae of incomplete differentiated sparganum proliferate in the @entity1 bone. We present the first case of @entity5472 arising in the long bone. The @entity1 was a 51-year-old @entity1 who complained of a slow growing painful mass on his right leg. The radiographic findings showed an infiltrative @entity690 with speckled calcification at the proximal tibia the clinical diagnosis of which favored @entity511 . Incisional biopsy revealed an innumerable number of small globular shapes, whitish parasites. Histologically, the parasites were composed of a few layers of smooth muscle and several calcerous bodies that were enclosed within a single row of tegumental cells. The latter exhibited a wavy appearance and coated with microvilli. These morphologic findings confirmed the nature of these maldifferentiated larvae. The @entity1 was treated by partial resection of the lesion. This should remind clinicians that @entity281 of the bone can produce a @entity5 -like lesion.
