title: Hemosiderotic fibrohistiocytic lipomatous lesion: case report and review of the literature.
abstract: BACKGROUND
  Lesions of the adipose tissue are the most common type of soft-tissue lesion among adults.
  
  
  METHODS
  We describe the case of a 33-year-old female patient with a soft-tissue lesion in her left knee that was diagnosed as a hemosiderotic fibrohistiocytic lipomatous lesion. This type of lesion, which was described for the first time in 2000, preferentially affects the ankle region of middle-aged women with a history of previous local trauma. Lesion recurrence is common, caused by incomplete resection, although there have not yet been any reports of metastases. After a review of the literature, we describe the clinical, radiological, morphological and immunohistochemical characteristics, along with their main differential diagnoses.
authors.affiliation: Universidade Federal do Triângulo Mineiro (UFTM), Minas Gerais, Brazil. marcella_nara@yahoo.com.br
authors.forename: Antônio Roberto Oliveira
authors.initials: AR
authors.lastname: Ramalho
authors.forename: Marcella Nara
authors.initials: MN
authors.lastname: Nunes
authors.forename: Sheila Jorge
authors.initials: SJ
authors.lastname: Adad
authors.forename: Sebastião Almeida
authors.initials: SA
authors.lastname: Leitão
authors.forename: Adilha Misson Rua
authors.initials: AM
authors.lastname: Micheletti
mesh_terms: D000328:Adult; D005260:Female; D006486:Hemosiderosis / Q000473:pathology*; D015620:Histiocytic Disorders, Malignant / Q000473:pathology*; D006801:Humans; D007717:Knee / Q000473:pathology*; D008067:Lipoma / Q000473:pathology*; D012983:Soft Tissue Neoplasms / Q000473:pathology*