"Sebaceous cysts" are trichilemmal cysts.
D003560:Cysts / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D004814:Epidermal Cyst / Q000175:diagnosis* / Q000473:pathology; D006197:Hair; D006801:Humans; D007633:Keratins / Q000032:analysis; D012867:Skin / Q000033:anatomy & histology / Q000473:pathology; D013194:Staining and Labeling
D007633:Keratins