Atypical subcutaneous fatty tumors.
Atypical fatty tumors present problems of terminology and diagnosis. While atypical fatty tumors that are located in subcutaneous tissues have an extremely good prognosis, local recurrence and transformation to a higher grade tumor may occur. Allen et al document the morphologic features and behavior of 37 atypical subcutaneous fatty tumors and describe a system of grading. The commentary discusses the terminology of atypical fatty tumors, the relevance of the proposed grading system, and the significance of a spindle cell component in atypical subcutaneous fatty tumors.
Challis
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Royal Hobart Hospital, Anatomical Pathology Department, Hobart Tasmania, Australia.
D005260:Female; D006801:Humans; D008067:Lipoma / Q000145:classification / Q000473:pathology*; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D012878:Skin Neoplasms / Q000145:classification / Q000473:pathology*; D012983:Soft Tissue Neoplasms / Q000145:classification / Q000473:pathology*