PMC9154164_01
Preoperative findings. (a) Protruding mass of 5 x 3 cm in the submental area, (b) Computed tomography findings (Axial view): rim-enhanced fluid-density lesion in the submental area, (c) Computed tomography findings (Sagittal view): soft -tissue edema, infiltration around the rim
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F1
A 53-year-old woman visited our outpatient clinic with a new round-shaped protruding mass (size: 5.0 cm x 3.0 cm) in the submental area [Figure 1a]. In addition, soft-tissue edema, infiltration around the rim, and thickening of the left platysma muscle was observed [Figure 1b and c].
Removed mass (size: 3.0 x 2.0 x 2.0 cm, whitish, fibrous tissue with no evidence of grains or vasculature involvement)
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F2
The removed mass was a 3.0 cm x 2.0 cm x 2.0 cm whitish fibrous tissue with no evidence of grains or vasculature involvement [Figure 2].
Pathologic findings. (a) H and E staining; magnification x 40, (b) H and E staining; magnification x 100, (c) Gomori methenamine silver staining; magnification x 400
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F3
Histological examination revealed cystic changes with necrosis and chronic active inflammation [Figure 3a]. Fungal hyphae intermingled with necrotic tissue were observed [Figure 3b]. Gomori methenamine silver staining of the specimen highlighted the broad and noseptate hyphae with nearly 90  branching [Figure 3c].