Tricky one,
Was there anything palpable?
A few options:
A normal benign lymph node in the gland with a broad fatty hilum
Localised fatty change in the parotid gland as it doesn’t have really crisp margins.
A localised area of sialadenitis seems less likely to me as does a diffuse disease like Sjogrens or IGG4 disease.
An old area of sialadenitis from a previous episode can leave textural changes (Kuttners tumour)
It doesn’t really look like a pleomorph or a warthins but I suppose it needs exclusion.
I would be guided a bit on the clinical presentation and how it felt.
A CT may help or a follow up ultrasound.
If anyone else would like to chime in with a suggestion please help us out!
Steve.