PMC8478528_01
MRI of the head and neck showing right nasal mass and nasion mass which is hypointense in T1 and isointense in T2.
CRIOT2021-1844244.001.jpg
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fig1
The patient was planned to have MRI (Figure 1) that showed a midline palatal defect involving both hard and soft palates, along with what appears to be a polypoidal mucosal mass with retention cysts protruding through defect from the right nasal cavity to the palate posteriorly.
CT facial bones: cleft lip and palate with approximately 10 mm gap within the hard palate and prominent posterior bone vomer with no skull base defect.
CRIOT2021-1844244.002.jpg
PMC8478528_01_CRIOT2021-1844244.002.jpg
fig2
H&E-stained section at 2x (a) and 10x (b) showing polypoid lesion with keratinizing skin surface epithelium. Meningothelial cells are noted along with dermal adnexal structures with a core of fibroadipose tissue.
CRIOT2021-1844244.003.jpg
PMC8478528_01_CRIOT2021-1844244.003.jpg
fig3
No endodermal elements were seen on the submitted specimen, as shown in Figure 3.