PMC4062382_01
(A) An X-ray shows an abnormal shadow in the right upper lobe. (B) Chest CT with contrast enhancement shows a ring-enhancing solid mass measuring 53x43 mm in size in the right upper lobe with significant mediastinal lymphadenopathy. (C) A PET/CT scan reveals a high uptake in the mass, with a maximum SUV of 8.7, and the mediastional lymph node, with a maximum SUV of 3.7.
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The chest X-ray showed an area of consolidation in the apex of the right lung (Figure 1A). Enlarged lymph nodes were not detected in the mediastinum(Figure 1B). A PET/CT scan demonstrated a high uptake in the lesion, with a maximum SUV of 8.7, and the mediastinal lymph node, with a maximum SUV of 3.7, suspicious for both lung cancer and lung abscess formation (Figure 1C).
A follow-up CT scan shows an increase in the size of the mass 59x49 mm.
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We suspected that the lesion indicated malignancy, as a follow-up CT scan showed an increase in the lesion in size to 59x49 mm (Figure 2) despite the absence of symptoms, such as fever.