PMC3920391_01
Ring shaped nodule in the right middle lobe.
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PMC3920391_01_gr1.jpg
fig1
A 76-year-old male, a lifelong nonsmoker with a past medical history of bronchiectasis, atypical mycobacterial infection and pulmonary aspergillosis was evaluated for a progressively enlarging nodule in the lateral segment of the right middle lobe measuring about 13 mm x 8 mm in largest dimension (Fig. 1).
Image taken at 260x showing cross section of an adult worm.
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PMC3920391_01_gr2.jpg
fig2
There was an area of infarcted lung with fragments of necrotic material containing remnants of Dirofilaria immitis within this area of necrosis (Figs. 2 and 3).
Same worm at 360x demonstrating the arrangement of the internal organs.
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PMC3920391_01_gr3.jpg
fig3
There was an area of infarcted lung with fragments of necrotic material containing remnants of Dirofilaria immitis within this area of necrosis (Figs. 2 and 3).