keloidiform "rash"

see also:

• dermatology
• pustular rashes
• skin nodular "rash"

• hypertrophic skin like lesions which individually look like keloid scars

• keloid scar
• dermatofibromas
  • usually non-inflamed
• xanthomas
  • contain yellowish lipids
• lobomycosis
  • fibrotic, keloid-like nodules that develop slowly over years
  • chains of thick-walled yeast-like fungal Lacazia loboi cells
  • infection occurs through traumatic implantation into the dermis, and the fungus does not spread person-to-person¹⁾
• skin metastases
• neurofibromas
• cutaneous lymphoma
• cutaneous sarcoidosis
• angiosarcoma
• disseminated reticulohistiocytosis
  • a rare form of histiocytosis
  • usually looks more like multiple non-inflamed sub-cutaneous nodules rather than keloids
• leprosy
  • rare in Australia
  • in 90% of patients, the first symptom noticed is numbness with temperature being the first sensation lost, followed by light touch, pain, and then deep pressure, and this may precede rash by years²⁾
  • eg. histoid leprosy
• ?cutaneous leishmaniasis
  • not acquired in Australia (from sand fly bites)
• ?lupus vulgaris

cutaneous lymphoma - image courtesy of https://acadderm.com/cutaneous-lymphoma-please-contribute-to-the-leukemia-lymphoma-society/

histoid leprosy - image courtesy of https://onlinelibrary.wiley.com/doi/10.1111/ijd.12799