:Involutional lipoatrophy

{{Short description|Medical condition}}

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Involutional lipoatrophy is a cutaneous condition, and is an idiopathic lipoatrophy characterized clinically by non-inflammatory focal loss of fat.{{cite book |author=Rapini, Ronald P. |author2=Bolognia, Jean L. |author3=Jorizzo, Joseph L. |title=Dermatology: 2-Volume Set |publisher=Mosby |location=St. Louis |year=2007 |isbn=978-1-4160-2999-1 }}

Idiopathic localized involutional lipoatrophy (ILIL) is a rare and nosologically imprecise condition characterized by a focal loss of subcutaneous tissue on one or several sites, occurring without any significant triggering factor or auto-immune background, and regressing spontaneously within a few months.{{Cite journal|title = Idiopathic Localized Involutional Lipoatrophy: A Lupus Profunds-like Condition |journal = Acta Dermato-Venereologica|volume = 87|issue = 6|pages = 546–7|doi = 10.2340/00015555-0300 |pmid = 17989899|year = 2007|last1 = Cendras|first1 = J.|last2 = Durand|first2 = L.|last3 = Dereure|first3 = O.|doi-access = free}}