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Actinomyces-Induced Inflammatory Pseudotumor of the Lymph Node Mimicking Scrofula

Randy F. Sweis, MD; Murray J. Propes, MD; and Elizabeth Hyjek, MD
[+] Article and Author Information

From University of Chicago, Chicago, IL 60637.

Potential Conflicts of Interest: None disclosed.

Ann Intern Med. 2011;155(1):66-67. doi:10.7326/0003-4819-155-1-201107050-00015
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Actinomyces-induced inflammatory pseudotumor with primary lymph node involvement.

A. Noncontrast coronal computed tomographic scan of the lungs showing right lower-lobe consolidation. B. Biopsy specimen of the lymph node showing broadening of connective tissue framework of the lymph node (pale areas) (hematoxylin–eosin stain; original magnification, × 40). C. Higher-magnification view of panel B showing expansion of sclerosed mesenchymal tissue in the trabeculae of the lymph node with proliferation of spindle cells, vessels, and inflammatory cells (hematoxylin–eosin stain; original magnification, × 400).

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