PMC9815530_01
(A) Coronal PET (positron emission tomography) image shows higher FDG (fluorodeoxyglucose) uptake in the right lung and the lymph nodes on the left side. (B) Axial PET images. (C) Chest PET-CT presenting mesothelioma. (D) Axial PET images with higher tracer uptake.
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No abnormal uptake was observed at other sites, including the lungs and pleura ( Figure 1 ).
(A) Percutaneous biopsy of lung lesions guided by fusion CT. (B) Photomicroscopy with H&E (hematoxylin and eosin) staining presented unusual epithelioid cells.
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Percutaneous biopsy of the lung lesions guided by fusion CT was performed after admission ( Figure 2 ).
Immunohistochemical studies. Tumor cells are positive for (A) CK(+) (D) p63, (E) calretinin, (F) CK5/6, (G) WT-1, and (H) Ki-67 but negative for (C) p40 and (B) TTF-1.
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Immunohistochemically, the tumor cells were positive for calretinin, CK, p36, CK5/6, WT-1, and Ki-67 but negative for TTF-1 and p40 ( Figure 3 ).