Forme fruste

Forme fruste is a term which refers to incomplete phenotypic expression of a condition, such that it does not meet the usual diagnostic criteria. 

For example, an individual with imaging features consistent with tuberous sclerosis, but without skin lesions, seizures or mental retardation would be said to have a forme fruste of the condition. The term is vague as, by definition it has no clear diagnostic criteria 1-2

History and etymology

The term is French, meaning crude, incomplete or unfinished 3-4

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rID: 13997
Synonyms or Alternate Spellings:

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