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Table 1 Subsets of Lichen myxedematosus and their diagnostic criteria

From: Scleromyxedema in a 21 year old female patient with acute lymphoblastic leukemia: a case report

Generalized sclerodermoid LM  “scleromyxedema” Localized papular LM Atypical LM
Generalized papular and sclerodermoid eruption.
Mucin deposition, fibroblast proliferation, and fibrosis.
Monoclonal gammopathy.
Absence of thyroid disease.
Papular or nodular plaques.
Mucin deposition with variable fibroblast proliferation.
Absence of both: monoclonal gammopathy and thyroid disease.
Features that mix between the generalized and the localized forms.