title: Involvement of the spleen by renal angiomyolipoma: metastasis or multicentricity?
abstract: Angiomyolipoma has been regarded as a benign renal neoplasm composed of adult fat cells, atypical blood vessels and smooth muscle. We report a case in which a renal angiomyolipoma showed clear evidence of involvement of the spleen and regional lymph nodes. The consensus in the literature suggests that this phenomenon is a manifestation of the multicentric nature of angiomyolipoma, rather than metastasis.
mesh_terms: D000328:Adult; D006391:Hemangioma / Q000473:pathology / Q000556:secondary*; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008067:Lipoma / Q000473:pathology / Q000556:secondary*; D008207:Lymphatic Metastasis; D008297:Male; D013160:Splenic Neoplasms / Q000556:secondary*