case_images: PMC10851833_01
case_images: Pre-operative sebaceous neoplasm on right upper back taken at time of initial biopsy.
case_images: cureus-0016-00000051934-i01.jpg
case_images: PMC10851833_01_cureus-0016-00000051934-i01.jpg
case_images: FIG1
case_images: On physical examination, there was a 5.5 x 4 x 2 cm necrotic fungating mass (Figure 1).
case_images: Histologic evaluation consistent with sebaceous carcinoma, H&E. (A) Infiltrative growth pattern with a central area of necrosis; (B) Malignant cells with numerous mitotic figures and vacuolated cells with centrally located nuclei; (C) Sebaceous carcinoma with pleomorphism and scattered mitosis; (D) Well-differentiated portion of sebaceous carcinoma closely resembling sebaceous adenoma.
case_images: cureus-0016-00000051934-i02.jpg
case_images: PMC10851833_01_cureus-0016-00000051934-i02.jpg
case_images: FIG2
case_images: Microscopically there was a prominent mitosis and infiltrative growth pattern (Figure 2).
case_images: Three-week post-operative image of excision site on patient's upper back.
case_images: cureus-0016-00000051934-i03.jpg
case_images: PMC10851833_01_cureus-0016-00000051934-i03.jpg
case_images: FIG3
case_images: Three weeks post-operatively, the site was healing well and there was no sign of recurrence (Figure 3).