Congenital granular cell myoblastoma

A congenital granular cell myoblastoma (also known as congenital epulis) is a very rare benign tumour which classically presents in the fetal-neonatal population.

It occurs almost exclusively in females when it presents in the fetal-neonatal population although no such predilection occur when it rarely presents in older children.

It is thought to occur as a result of excessive oestrogen production from the fetal ovaries under HCG stimulation.

The histogenesis is uncertain, and proposed cells of origin include odontogenic epithelium, undifferentiated mesenchymal cells, pericytes, fibroblasts, smooth muscle cells, nerve-related cells, and histiocytes.

Location

It most commonly occurs along the alveolar ridge of the maxilla although less commonly, it can also occur in relation to the mandible.

Antenatal ultrasound

Rarely a congenital epulis may be detected on antenatal ultrasound as an intra-oral mass. Colour and power Doppler ultrasound examination may show marked blood flow within the tumour 5.

General considerations include

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Article information

rID: 15734
Tag: cases
Synonyms or Alternate Spellings:
  • Epulis
  • Congenital oral granular cell myoblastoma
  • Congenital oral granular cell tumour
  • Congenital epulis

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