A 86-year-old fully bedridden woman with dementia and chronic kidney disease presented with extensive, grey-yellowish hyperkeratotic plaques located on the palms, axillae, chest, and face that had occurred 3 months ago (Fig. 1). Moreover, a generalized rash with thickening of the skin and intense pruritus was present. Dematoscopy revealed several dense triangles suspicious for scabies mites hea...