Fig. 1
From: Malignant melanoma without primary, presenting as solitary pulmonary nodule: a case report
Chest X-ray showing a “coin lesion” in the left mid-zone (yellow arrow). CT section confirming the left-upper-lobe 20 mm solid (red arrow), non-spiculated, solitary nodule. Sections of PET showing high SUV activity of the lung lesion and a separate solitary posterior right paravertebral intramuscular lesion (erector spinae) at the level of T6 vertebral body, not visible on CT (yellow arrows)