Primary cutaneous amyloidosis

Primary cutaneous amyloidosis is a form of amyloidosis associated with oncostatin M receptor.^[2][3] This type of amyloidosis has been divided into the following types:^[4]: 520

• Macular amyloidosis is a cutaneous condition characterized by itchy, brown, rippled macules usually located on the interscapular region of the back.^[4]: 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.^[5]
• Lichen amyloidosis is a cutaneous condition characterized by the appearance of occasionally itchy lichenoid papules, typically appearing bilaterally on the shins.^[4]: 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.^[4]: 521

Primary cutaneous amyloidosis
Other names	Primary localized cutaneous amyloidosis[1]
Macular amyloidosis, located on the right lumbar region of the back
Specialty	Dermatology

See also

• Amyloidosis
• List of cutaneous conditions