Presentation
Headache.
Patient Data
Age: 50 years
Gender: Female
From the case:
Trichilemmal cyst
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/100521/annotated_viewer_json?c=1669467588\u0026lang=us"}
Non-contrast CT scan of the brain showed no intracranial pathology.
Incidentally noted left occipital scalp subcutaneous lesion showing coarse calcification. Intact underlying calvarium. A diagnosis of trichilemmal cyst was made.
Case Discussion
Trichilemmal cysts (TC) are keratin-filled cysts with a wall resembling the external root sheath of a hair follicle. They are the most common subcutaneous cysts of the scalp.
On imaging, these lesions can be either a cystic or solid mass which may show internal foci of calcifications.
Unable to process the form. Check for errors and try again.