A 30-year-old man presented with a 6-year history of eroded, orange-red plaques with a subtle nodular edge in the bilateral axilla, groin and perianal skin leading to pain, scarring and limited shoulder extension. Positron emission tomography-computed tomography (PET-CT) showed skin lesions in both axillae and groins and in the right parotid gland, along with cystic lung changes. A repeat PET-CT scan following 6 months of treatment showed complete clearance of lesions except for a single lesion in the pons area of the brainstem. [Extracted from the article]