Sialoblastoma: MRI findings

Pediatr Radiol. 2004 Dec;34(12):1005-7. doi: 10.1007/s00247-004-1286-5. Epub 2004 Jul 24.


Sialoblastoma is a rare, aggressive and potentially malignant salivary gland tumour diagnosed in the neonatal period. A total of 28 cases have been reported in the literature, but reports of the imaging findings are limited. We describe a neonate with a right parotid sialoblastoma. MRI showed a large facial mass, which was mostly hypointense to the brain on T1-weighted images and mildly hyperintense on T2-weighted images. There were foci of haemorrhage and necrosis. Heterogeneous and weak contrast enhancement was detected on contrast-enhanced images. The tumour invaded the maxilla and adjacent muscles.

Publication types

  • Case Reports

MeSH terms

  • Carcinoma, Adenoid Cystic / diagnosis
  • Facial Muscles / pathology
  • Humans
  • Infant, Newborn
  • Magnetic Resonance Imaging*
  • Male
  • Maxillary Neoplasms / diagnosis
  • Parotid Gland / pathology
  • Salivary Gland Neoplasms / diagnosis*
  • Salivary Gland Neoplasms / pathology