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Case Reports
. 2012 Nov 9:2012:bcr0120125640.
doi: 10.1136/bcr-01-2012-5640.

Mai infection simulating metastatic breast cancer

Bashar Mohamad  1 , Muhammad Nouman Iqbal, K V Gopal, Saaima Arshad, Hamed A Daw
Affiliations
Case Reports

Mai infection simulating metastatic breast cancer

Bashar Mohamad et al. BMJ Case Rep. .

Abstract

We represent a case of an asymptomatic female who was found to have a mass in the right breast which confirmed an invasive ductal carcinoma by core biopsy. After 3 months of completion of chemo-radiotherapy, the patient remained totally asymptomatic. However, positron emission tomography scan showed four hypermetabolic lesions in the left lung thought to be consistent with metastatic disease. Standard uptake value ranged between 3.86 and 6; the results were consistent with metastatic breast cancer, so wedge resection was performed. Caseating granulomatous inflammation with necrosis was reported. Ultimately culture revealed Mycobacterium avium intracellulare infection. The lesions resolved completely after a course of antibiotics.

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Figures

Figure 1
Figure 1
F-18 fluorodeoxyglucose and positron emission tomography scan revealed hypermetabolic lesions in the left lung that were thought to be consistent with metastatic disease based on the elevation of standard uptake value.
Figure 2
Figure 2
Regimens of antibiotic treatment for Mycobacterium avium-intracellulare complex used along with their usual doses and side effects.
See this image and copyright information in PMC

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