case_images: PMC6416756_01
case_images: (a) T2-weighted image (sagittal section) showing the cystic swelling. (b) T1-weighted image with contrast showing no contrast enhancement. (c) FLAIR (coronal section) showing the presence of cystic swelling. (d) T1 (axial) showing cystic lesion on vertex
case_images: SNI-10-25-g001.jpg
case_images: PMC6416756_01_SNI-10-25-g001.jpg
case_images: F1
case_images: T1-weighted sequences [Figure 1b] showing no surrounding edema on fluid-attenuated inversion recovery (FLAIR) image [Figure 1c]. There was no contrast enhancement [Figure 1d]. This lesion was showing no diffusion restriction and no signal susceptibility on susceptibility weighted imaging sequence. The patient underwent complete surgical excision of the scalp lesion under general anesthesia.
case_images: (a) Low-power magnification showing squamous epithelium, adnexa, and sebaceous glands. (b) High-power magnification showing skin and adnexa
case_images: SNI-10-25-g002.jpg
case_images: PMC6416756_01_SNI-10-25-g002.jpg
case_images: F2
case_images: It was lined by typical squamous epithelium filled with clear fluid and white keratinaceous material [Figure 2a and b].