Infect Chemother. 2012 Dec;44(6):526-529. Korean.
Published online Dec 31, 2012.
Copyright © 2012 by The Korean Society of Infectious Diseases and Korean Society for Chemotherapy
Case Report

A Case of Mycobacterium kansasii Lymphadenitis in HIV-infected Patient

Seon Young Park, Ga Ram Lee, Ji Won Min, Ja Young Jung, Young Do Jeon, Hyoung-Shik Shin and Bum Sik Chin
    • Department of Internal Medicine, National Medical Center, Seoul, Korea.
Received July 10, 2012; Revised September 14, 2012; Accepted September 26, 2012.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nontuberculous mycobacteria (NTM) are widely present in the environment, although they rarely cause infection in humans. However, infection by NTM has been increasingly recognized worldwide in the context of the human immunodeficiency virus (HIV) epidemic and therapeutic immunosuppression. Mycobacterium kansasii is a slow-growing photochromogenic mycobacterium, which mainly causes pulmonary infection in patients with predisposing lung diseases, and, occasionally, disseminated infection with poor outcomes in immunocompromised patients. We report on the first case of lymphadenitis caused by infection with M.kansasii in an HIV-infected patient in Korea. The patient showed significant improvement after receiving antituberculous therapy (isoniazid, rifabutin) in combination with surgical drainage and highly active antiretroviral therapy (abacavir, lamivudine, and lopinavir/ritonavir).

Keywords
Mycobacterium kansasii; Lymphadenitis; Human immunodeficiency virus

Figures

Figure 1
Computed tomography shows a central low density with peripheral rim enhancement in the left submandibular lymph node. Follow-up imaging (B, on hospital day 12) shows an increase in size despite antituberculous therapy, compared with the initial study (A, on hospital day 2).

Figure 2
(A) A few poorly formed granulomas and polymorphous lymphoid cells are seen in submandibular lymph node aspirates (H&E stain, ×400). (B) Long, beaded acid-fast bacilli are seen in submandibular lymph node aspirates (Ziehl-Neelsen stain, ×1,000).

Tables

Table 1
Clinical Characteristics of Patients with Localized M. kansasii Lymphadenitis on Previously Published Literatures

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