The<unk>  is usually proposed as a diagnosis based on the appearance of the skin and the patient's medical history. To confirm the diagnosis, the doctor performs a skin biopsy, in which hematoxylin and eosin staining will show a thick reticular dermis with thick collagen bundles separated by clear spaces. The patient's blood may be examined for diseases that may appear after the onset of symptoms, such as multiple myeloma.
Scleredema
Gangrene
Diabetic bulla
Tar melanosis
Pachyderma
Capillaritis
Lichen sclerosus
Rachitic rosary