Merck Manual

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Caseous lymphadenitis lesions, external form, prefemoral lymph node
Caseous lymphadenitis lesions, external form, prefemoral lymph node

Caseous lymphadenitis lesion of the prefemoral lymph node of a goat that has been clipped in preparation for aspiration and culture. The ruler is to provide a scale for the size of the lesion.

Courtesy of Dr. Kevin Washburn.