primary cutaneous amyloidosis primary cutaneous amyloidosis primary cutaneous amyloidosis is a form of amyloidosis associated with oncostatin m receptor. this type of amyloidosis has been divided into the following types:: 520 macular amyloidosis is a cutaneous condition characterized by itchy, brown, rippled macules usually located on the interscapular region of the back.: 521 combined cases of lichen and macular amyloidosis are termed biphasic amyloidosis, and provide support to the theory that these two variants of amyloidosis exist on the same disease spectrum. lichen amyloidosis is a cutaneous condition characterized by the appearance of occasionally itchy lichenoid papules, typically appearing bilaterally on the shins.: 521 histopathology of lichen amyloidosis, with subepithelial congo red-positive deposits lichen amyloidosis on a 56-year-old male's leg lichen amyloidosis on a 56-year-old male's leg nodular amyloidosis is a rare cutaneous condition characterized by nodules that involve the acral areas.: 521 primary cutaneous amyloidosisother namesprimary localized cutaneous amyloidosismacular amyloidosis, located on the right lumbar region of the backspecialtydermatology