case_images: PMC8075617_01
case_images: Chest X Ray: opacity of the left hemithorax, with tracheal
  deviation.
case_images: 1678-9946-rimtsp-63-S1678-9946202163035-gf01.jpg
case_images: PMC8075617_01_1678-9946-rimtsp-63-S1678-9946202163035-gf01.jpg
case_images: f1
case_images: He was sent to the emergency department of the hospital and a chest X-ray (Figure 1) showed opacity of the left hemithorax and a deviation of the trachea.
case_images: Microscopic appearance of the lung tumour cells stained by
  Hematoxylin-eosin. Islands of large polygonal malignant squamous cells (x100
  magnification).
case_images: 1678-9946-rimtsp-63-S1678-9946202163035-gf02.jpg
case_images: PMC8075617_01_1678-9946-rimtsp-63-S1678-9946202163035-gf02.jpg
case_images: f2
case_images: The chest tomography showed an image suggestive of pulmonary neoplasia and the anatomopathological exams (Figure 2) and immunohistochemistry (Figure 3) of the pulmonary lesion confirmed the presence of small cells lung epidermoid carcinoma.
case_images: A complementary immunohistochemistry exam showing nuclear positivity for
  the P63 protein that can differently stain Small Cells Lung Epidermoid
  Carcinoma (x 400 magnification).
case_images: 1678-9946-rimtsp-63-S1678-9946202163035-gf03.jpg
case_images: PMC8075617_01_1678-9946-rimtsp-63-S1678-9946202163035-gf03.jpg
case_images: f3
case_images: The chest tomography showed an image suggestive of pulmonary neoplasia and the anatomopathological exams (Figure 2) and immunohistochemistry (Figure 3) of the pulmonary lesion confirmed the presence of small cells lung epidermoid carcinoma.