Sialoblastoma (embryoma): MR findings of a rare pediatric salivary gland tumor.
We report the findings in a 21-month-old girl who had a noninfiltrating mass in the left cheek, just anterior to the masseter muscle, which, at surgery, proved to be a sialoblastoma. Sialoblastoma has a histologic appearance reminiscent of a primitive state of salivary gland development; that is, it shows an arrested state of salivary maturation. MR imaging in this case showed that the lesion was isointense with muscle on T1-weighted images, had a high-intermediate signal intensity similar to that of fat on T2-weighted images, and enhanced sparsely and nonhomogeneously.
Som
P M
PM
Department of Radiology, Mount Sinai School of Medicine of the City University of New York, NY 10029, USA.
Brandwein
M
M
Silvers
A R
AR
Rothschild
M A
MA
D000236:Adenoma / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000601:surgery; D012468:Salivary Gland Neoplasms / Q000175:diagnosis* / Q000601:surgery