case_images: PMC6481098_01
case_images: CXR upright-expiration. Arrow: right lower lobe irregular mass like opacity, no evidence of pneumothorax, effusion, or consolidation.
case_images: CRIPU2019-3867831.001.jpg
case_images: PMC6481098_01_CRIPU2019-3867831.001.jpg
case_images: fig1
case_images: Chest X-Ray (CXR) was obtained and showed a nodular, irregular opacity in the right lung (Figure 1). Computerized Tomography (CT) of the Chest followed and demonstrated a 3.2x2x4.3 cm mass in the superior segment of the right lower lobe as well as a 1.6 cm subcarinal lymph node (Figure 2).
case_images: Chest CT. Arrow: 3.2x2x4.3 cm mass in the superior segment of the right lower lobe.
case_images: CRIPU2019-3867831.002.jpg
case_images: PMC6481098_01_CRIPU2019-3867831.002.jpg
case_images: fig2
case_images: Chest X-Ray (CXR) was obtained and showed a nodular, irregular opacity in the right lung (Figure 1). Computerized Tomography (CT) of the Chest followed and demonstrated a 3.2x2x4.3 cm mass in the superior segment of the right lower lobe as well as a 1.6 cm subcarinal lymph node (Figure 2).
case_images: PET scan. Arrow: moderate to intensely increased metabolic activity in the right lower lobe mass (max SUV 8.4 initially increasing to 15.5 on delayed images), without evidence of other focal abnormalities.
case_images: CRIPU2019-3867831.003.jpg
case_images: PMC6481098_01_CRIPU2019-3867831.003.jpg
case_images: fig3
case_images: A Positron Emission Tomography (PET) Scan revealed activity in the right lower lobe on both early and delayed imaging (Figure 3).
case_images: H&E stain ((a) 200x; (b) 400x) with tumor cells located under bronchial mucosa composed of epithelioid tumor cells with large amounts of acid cytoplasm and prominent nuclei. Mitotic figures are easily found. Note dark brown pigment in tumor cells (Arrows). Immunohistochemically, tumor cells were positive for S-100 and HBM 45 ((c) and (d)), amongst others.
case_images: CRIPU2019-3867831.004.jpg
case_images: PMC6481098_01_CRIPU2019-3867831.004.jpg
case_images: fig4
case_images: A core biopsy of the right lower lobe revealed an invasive, poorly differentiated, malignant melanoma (Box 1 and Figure 4).