Teratoid hepatoblastoma with abundant neuroendocrine and squamous differentiation with extensive parenchymal metastasis

Arch Pathol Lab Med. 2012 Aug;136(8):911-4. doi: 10.5858/arpa.2012-0212-CR.

Abstract

Teratoid hepatoblastoma is a rare histologic subtype accounting for 4% to 10% of all hepatoblastomas and is characterized by the presence of divergent differentiation, including squamous, mucinous, melanocytic, cartilaginous, osseous, skeletal muscle, and neural elements. It is postulated that the teratoid elements might derive from multipotential less-differentiated stem cells. Teratoid hepatoblastoma responds poorly to chemotherapy and therefore recognition of this variant has prognostic implications. We describe a 1½-year-old child with teratoid hepatoblastoma characterized by unusual clinical and morphologic patterns including prominent neuroendocrine and squamous differentiation.

Publication types

  • Case Reports

MeSH terms

  • Cell Differentiation
  • Diagnosis, Differential
  • Female
  • Hepatoblastoma / diagnosis
  • Hepatoblastoma / pathology*
  • Hepatoblastoma / secondary
  • Humans
  • Infant
  • Liver / pathology*
  • Liver Neoplasms / diagnosis
  • Liver Neoplasms / pathology*
  • Lung / pathology*
  • Lung Diseases, Interstitial / diagnosis
  • Lung Diseases, Interstitial / pathology*
  • Neoplasms, Squamous Cell / diagnosis
  • Neoplasms, Squamous Cell / pathology*
  • Neoplasms, Squamous Cell / secondary
  • Neuroendocrine Tumors / diagnosis
  • Neuroendocrine Tumors / pathology*
  • Neuroendocrine Tumors / secondary
  • Teratoma / diagnosis