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Volume 29, Number 1—January 2023

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Pathologic and Immunohistochemical Evidence of Possible Francisellaceae among Aborted Ovine Fetuses, Uruguay

Federico GiannittiComments to Author , Matías A. Dorsch, Carlos O. Schild, Rubén D. Caffarena, Karen Sverlow, Aníbal G. Armién, and Franklin Riet-Correa
Author affiliations: Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (F. Giannitti, M.A. Dorsch, C.O. Schild, R.D. Caffarena, F. Riet-Correa); University of California, Davis, California, USA (K. Sverlow, A.G. Armién); Universidade Federal da Bahia, Ondina, Salvador, Brazil (F. Riet-Correa)

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Figure 1

Diaphragmatic view of diseased liver from an aborted ovine fetus (fetus B) with possible Francisellaceae infection, Uruguay. A) Myriad discrete, white to yellowish, round, coalescing foci are visible, ranging from pinpoint to ≈2 mm in diameter, with a multifocal disseminated distribution in the hepatic parenchyma indicative of necrotizing hepatitis. Lesions are more visible in the left liver lobe (right side of the image) than the right liver lobe (left side of the image), in which the hepatic parenchyma is diffusely pale due to moderate autolysis. B) Isolated view of left liver lobe with disseminated foci of necrotizing hepatitis, which are characteristic in cases of tularemia.

Figure 1. Diaphragmatic view of diseased liver from an aborted ovine fetus (fetus B) with possible Francisellaceae infection, Uruguay. A) Myriad discrete, white to yellowish, round, coalescing foci are visible, ranging from pinpoint to ≈2 mm in diameter, with a multifocal disseminated distribution in the hepatic parenchyma indicative of necrotizing hepatitis. Lesions are more visible in the left liver lobe (right side of the image) than the right liver lobe (left side of the image), in which the hepatic parenchyma is diffusely pale due to moderate autolysis. B) Isolated view of left liver lobe with disseminated foci of necrotizing hepatitis, which are characteristic in cases of tularemia.

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Page created: November 04, 2022
Page updated: December 22, 2022
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