Myocbacterium-Avium Intracellulare Associated Inflammatory Pseudotumor of the Anterior Nasal Cavity |
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Authors: | Sadaf Ilyas Dima Youssef Humera Chaudhary Mousa A Al-Abbadi |
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Institution: | (1) Department of Internal Medicine/Infectious Diseases Section, James H. Quillen VA Medical Center, Mountain Home, TN 37684, USA;(2) Department of Pathology and Laboratory Medicine, James H Quillen VA Medical Center, Lamont and Veterans Way, P O Box 4000, Mountain Home, TN 37684, USA; |
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Abstract: | In this case report, we describe an unusual case of mycobacterial associated inflammatory pseudotumor that occurred in a patient
with a previous history of cocaine abuse. We discuss inflammatory pseudotumor (IPT) in general and emphasize the rare entity
where an associated mycobacterial infection is seen. The histogenesis is not yet completely understood. The lesion can pose
challenges for practicing pathologists and a misdiagnosis of malignancy can occur at multiple facets. A discussion about the
differential diagnosis and clues to make the distinction is presented. In addition to spindle cell proliferation, the presence
of a background of mixed inflammatory cell infiltrate and foamy macrophages are clues to make the diagnosis. In the case of
mycobacteria associated IPT, Acid Fast Bacilli (AFB) stains will easily highlight the organisms confirming the diagnosis. |
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Keywords: | Inflammatory Pseudotumor Mycobacteria |
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