case_images: PMC11807403_01
case_images: MRI imaging (sagittal section).. T2-weighted images showing heterogenous hyperintensity signals.
case_images: cureus-0017-00000077220-i01.jpg
case_images: PMC11807403_01_cureus-0017-00000077220-i01.jpg
case_images: FIG1
case_images: It revealed an isointense signal on T1-weighted images with mild enhancement of its wall and hyperintense heterogenous signals on T2-weighted images (Figure 1).
case_images: Anterior view of large mass in the fourth metatarsal.
case_images: cureus-0017-00000077220-i02.jpg
case_images: PMC11807403_01_cureus-0017-00000077220-i02.jpg
case_images: FIG2
case_images: Grossly, the specimen consisted of a soft tissue mass and measured 5 cm x 4 cm x 3.5 cm, and the toe measured 4 cm x 2 cm x 0.5 cm (Figures 2, 3).
case_images: Posterior view of large mass in the fourth metatarsal.
case_images: cureus-0017-00000077220-i03.jpg
case_images: PMC11807403_01_cureus-0017-00000077220-i03.jpg
case_images: FIG3
case_images: Grossly, the specimen consisted of a soft tissue mass and measured 5 cm x 4 cm x 3.5 cm, and the toe measured 4 cm x 2 cm x 0.5 cm (Figures 2, 3).
case_images: Cut section of mass revealing yellow, tan fatty cut surface.
case_images: cureus-0017-00000077220-i04.jpg
case_images: PMC11807403_01_cureus-0017-00000077220-i04.jpg
case_images: FIG4
case_images: Serial sectioning of the mass revealed a yellow, tan fatty cut surface (Figure 4).
case_images: Pathological findings (hematoxylin-eosin stained after formalin fixation and paraffin embedding) shows proliferation of spindle cells with collagen fibers interspersed around mature adipocytic tissue. . Original magnification: (A) X100 (B) X400 (C) positive staining for CD 34.
case_images: cureus-0017-00000077220-i05.jpg
case_images: PMC11807403_01_cureus-0017-00000077220-i05.jpg
case_images: FIG5
case_images: Immunohistochemical staining revealed that spindle cells are diffusely positive for CD34, further supporting the diagnosis of spindle cell lipoma (Figures 5A, 5B, 5C).