case_images: PMC9132464_01
case_images: An ulcerated tumor located in the anterior of the vertex, fixed to the floor.
case_images: ICRP_A_2077208_F0001_C.jpg
case_images: PMC9132464_01_ICRP_A_2077208_F0001_C.jpg
case_images: F0001
case_images: In the examination of the patient, who had a history of coronary artery disease and gastric cancer, a 6.8 x 6.5 x 1 cm middle ulcerated, hyperemic, nonpigmented, fixed lesion was found in the anterior of the vertex (Figure 1).
case_images: Gross invasion extending to the cranium in the tumor center.
case_images: ICRP_A_2077208_F0002_C.jpg
case_images: PMC9132464_01_ICRP_A_2077208_F0002_C.jpg
case_images: F0002
case_images: It was observed that the tumor invaded the parietal bone in the center (Figure 2).
case_images: Lobular proliferation is seen. H&E; original magnification, x100.
case_images: ICRP_A_2077208_F0003_C.jpg
case_images: PMC9132464_01_ICRP_A_2077208_F0003_C.jpg
case_images: F0003
case_images: Most of the tumor consisted of small cells with eosinophilic staining and high nucleus/cytoplasm ratio (Figure 3).
case_images: PMC9132464_02
case_images: Mobile, hyperemic tumor located in the left temporal region.
case_images: ICRP_A_2077208_F0004_C.jpg
case_images: PMC9132464_02_ICRP_A_2077208_F0004_C.jpg
case_images: F0004
case_images: In the examination, a smooth bordered, hyperemic, hair-free, and mobile 2 x 2 x 1 cm nodular lesion was detected in the left parietal region (Figure 4).
case_images: Basaloid cells with palisading in the peripheral areas of lobules are present. H&E; original magnification, x100.
case_images: ICRP_A_2077208_F0005_C.jpg
case_images: PMC9132464_02_ICRP_A_2077208_F0005_C.jpg
case_images: F0005
case_images: The tumor cells were malignant, with eosinophilic staining, pleomorphism, dark nuclei, and large cell groups in places (Figure 5).
case_images: PMC9132464_03
case_images: Infected and ulcerated tumor located in the right occipital region.
case_images: ICRP_A_2077208_F0006_C.jpg
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case_images: F0006
case_images: There was no palpable LAP in the neck (Figure 6).
case_images: Marked anaplasia and atypical mitosis are seen. H&E; original magnification, x400.
case_images: ICRP_A_2077208_F0007_C.jpg
case_images: PMC9132464_03_ICRP_A_2077208_F0007_C.jpg
case_images: F0007
case_images: Tumor cells showed irregular nuclear contours, hyperchromasia, and high mitotic activity with atypical mitotic figures (Figure 7).
case_images: PMC9132464_04
case_images: Tumor located in the right parietal region, with multiple ulcerated areas on it.
case_images: ICRP_A_2077208_F0008_C.jpg
case_images: PMC9132464_04_ICRP_A_2077208_F0008_C.jpg
case_images: F0008
case_images: In the examination, a mobile, multilobulating, hair-free mass of 6.5 x 5 x 3 cm with irregular borders and ulcerations in places, was detected in the right temporoparietal region (Figure 8).
case_images: On low power, pushing border and trichilemmal keratinization. H&E; original magnification, x40.
case_images: ICRP_A_2077208_F0009_C.jpg
case_images: PMC9132464_04_ICRP_A_2077208_F0009_C.jpg
case_images: F0009
case_images: Histopathological examination revealed proliferative keratinocytes surrounding the trichylememal type keratinous material (Figure 9).