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Clinical Note
March 15, 2010

Facial Infiltrating LipomatosisPhysical, Radiological, and Histopathological Findings

Author Affiliations

Author Affiliations: Departments of Head and Neck Surgery (Drs Kim and Gottschall), Genetics (Dr Bachman and Ms Nemzer), and Pathology (Drs Puligandla and Schauer), Kaiser Permanente Medical Center, Oakland, California.

Arch Otolaryngol Head Neck Surg. 2010;136(3):301-303. doi:10.1001/archoto.2010.21

Facial infiltrating lipomatosis (FIL) is a rare congenital disorder associated with infiltration of mature lipocytes into adjacent soft tissue. Common findings include hemifacial enlargement, skeletal overgrowth, ipsilateral macroglossia, cutaneous capillary blush, mucosal neuromas, and dental changes. While benign, recurrence is common after surgical treatment. We report a case of this rare disorder and discuss the physical, radiological, and histopathological findings.

A 3½-year-old girl was found to have progressive left hemifacial enlargement since birth. Physical findings included asymmetric enlargement of the left ear, cheek, tongue, teeth, mandible, neck, and parotid and submandibular glands. In addition, hyperplastic papillae of the anterior third of tongue and premature loss of primary teeth with premature eruption of secondary teeth were noted. Otherwise, there were no neurological, audiological, or developmental abnormalities. Her prenatal course and birth were unremarkable except for polyhydramnios, and family history was negative for any known genetic disorders.

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