PMC9977204_01
Forehead ulcer on presentation. A large fungating ulcer of approximately 9 x 10 cm with pinpoint bleeding sites and rolled-out borders on the forehead.
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FIG1
As shown in Figure 1, a skin exam showed an approximately 9 x 10 cm fungating ulcer on the forehead with pinpoint bleeding sites and rolled-out borders.
MRI skull and brain of the patient on presentation. The arrows show the eroding lesion through the skull into the dura. . MRI: magnetic resonance imaging.
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FIG2
As shown in Figure 2, our patient's imaging showed a full-thickness erosion of the frontal bone with likely invasion into the dural layer. 
Regression of the forehead ulcer after RT. The upper image is on day 92, measuring approximately 5 cm x 4.5 cm. The lower left image is on day 183, measuring approximately 3 cm x 3.5 cm. The lower right image is on day 355 during his last follow-up visit after RT, measuring approximately 2 cm x 1.5 cm.. RT: radiation therapy.
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FIG3
In the span of his one-year follow-up, the ulcer on the forehead regressed, as shown in Figure 3.