Myxolipomatous pleomorphic adenoma: an unusual oral presentation.
The first case of a myxoid variant of lipomatous pleomorphic adenoma arising in the intraoral minor salivary gland is presented. A well-encapsulated tumor was composed almost entirely of myxolipomatous tissue with honeycomb-like spindled cellular areas, which contained only a scant glandular element. Immunohistochemistry confirmed the myoepithelial nature of spindle cells intimately admixed with mucoadipose component. We propose the term myxolipomatous pleomorphic adenoma for this peculiar lesion.
Ide
Fumio
F
Department of Oral Pathology, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan.
Kusama
Kaoru
K
D008949:Adenoma, Pleomorphic / Q000473:pathology*; D017667:Adipocytes / Q000473:pathology; D000273:Adipose Tissue / Q000473:pathology; D000328:Adult; D002467:Cell Nucleus / Q000648:ultrastructure; D005260:Female; D006801:Humans; D009130:Muscle, Smooth / Q000473:pathology; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D012470:Salivary Glands, Minor / Q000473:pathology*