Pelvic actinomycosis is usually associated with prolonged use (> 3 yrs.) of an Intrauterine Device (IUD). Ovarian involvement manifests as a unilateral tubo-ovarian mass consisting of multiple abscesses filled with blood-tinged exudate. The image shows an actinomycotic (sulfur) granule enveloped by an infiltrate composed of neutrophils, foamy histiocytes, lymphocytes and plasma cells.
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