case_images: PMC10883260_01
case_images: Chest X-ray and chest CT scan on admission. Left top: chest X-ray reveals infiltration on the left lung. Right top: upper level of chest CT scan. Left bottom: middle level of chest CT scan. Right bottom: lower level of chest CT scan. These CT scans reveal infiltrative shadows on both lungs, mainly on the left and dorsal sites.
case_images: cureus-0016-00000052798-i01.jpg
case_images: PMC10883260_01_cureus-0016-00000052798-i01.jpg
case_images: FIG1
case_images: PET/CT scan after CyberKnife treatment. Left: axial views. Right: coronal views. FDG uptake is not observed in the throat. FDG uptake in the liver, kidneys, intestine, bladder, back muscles, and forearms was considered to be physiological.. PET: positron emission tomography; FDG: fluorodeoxyglucose
case_images: cureus-0016-00000052798-i02.jpg
case_images: PMC10883260_01_cureus-0016-00000052798-i02.jpg
case_images: FIG2
case_images: CyberKnife (Accuray, California, USA) radiosurgery was performed and the tumors disappeared on a PET/CT scan as shown in Figure 2.
case_images: Cancer cells in the lungs. Left: the lung was infiltrated with cancer cells. Right: the vessels in the lung were filled with cancer cells.
case_images: cureus-0016-00000052798-i03.jpg
case_images: PMC10883260_01_cureus-0016-00000052798-i03.jpg
case_images: FIG3
case_images: Cancer cells infiltrated in the skin and the spine. Left: cancer cells infiltrated in the skin. Middle: cancer cells infiltrated in subcutaneous tissue. Right: cancer cells infiltrated in L3.
case_images: cureus-0016-00000052798-i04.jpg
case_images: PMC10883260_01_cureus-0016-00000052798-i04.jpg
case_images: FIG4
case_images: The pleura, spine (L3 and L4), and back skin at the level of T4 and L3 were also infiltrated with cancer cells (Figure 4).
case_images: Surgery samples of previous cancers. Left: Biopsy sample of previous laryngeal cancer seven years ago showing moderately differentiated squamous cell carcinoma. Right: Surgery sample of melanoma eight years ago showing infiltration of melanocytes.
case_images: cureus-0016-00000052798-i05.jpg
case_images: PMC10883260_01_cureus-0016-00000052798-i05.jpg
case_images: FIG5
case_images: A biopsy sample of the previous laryngeal cancer seven years ago was ordered to compare with the current cancer, which showed moderately differentiated squamous cell carcinoma (Figure 5). The surgery sample of previous melanoma was also ordered to compare with the current cancer, which showed infiltration of melanocytes (Figure 5).
case_images: Histopathological examinations of the cancer cells in the lungs. Top from the left: CK7 (+), vimentin (+), and Napsin A (-). Bottom from the left: TTF-1 (-), p40 (-), and Melan A (-).
case_images: cureus-0016-00000052798-i06.jpg
case_images: PMC10883260_01_cureus-0016-00000052798-i06.jpg
case_images: FIG6
case_images: TTF1 (-), S100 (-), SOX10 (-), Melan-A (-), HMB45 (-), and vimentin (+) (Figure 6).