Lipoid Proteinosis Key Points Lipoid proteinosis is a rare autosomal recessive dermatosis that presents with dermatological, ophthalmological, otolaryngological, and neurological manifestations It is a multisystem disease due to multiple mutations…
Lipoblastoma and Lipoblastomatosis Key Points Lipoblastoma and lipoblastomatosis are rare, benign, soft-tissue tumors of embryonal fat occurring primarily in children Lipoblastoma refers to a circumscribed encapsulated form, and lipoblastomatosis refers…
Keratinous Cyst, Intratarsal Key Points Intratarsal keratinous cysts arise from the meibomian glands of the tarsal plates They do not arise from the dermis, and therefore are distinct from epidermoid…
Keratinous Cysts, Cutaneous Key Points Cutaneous keratinous cysts are derived from the folliculose-baceous apparatus, with different epithelial segments giving rise to distinct histologically defined types of cyst Keratinous cysts arising…
Keratoacanthoma Key Points Keratoacanthoma is a common tumor It is seen most frequently in fair-skinned individuals with a predilection for sun-damaged skin Keratoacanthoma can be solitary or multiple Solitary KA…
Inverted Follicular Keratosis Key Points Inverted follicular keratosis (IFK) is a rare benign epithelial tumor It originates from the infundibular portion of the hair follicle Ninety percent of IFK cases…
Intravascular Papillary Endothelial Hyperplasia Key Points Intravascular papillary endothelial hyperplasia is a vascular lesion that usually arises in veins or arteries It is a reactive lesion representing an unusual form…
Infantile Hemangioma Key Points Infantile hemangiomas are the most common benign soft-tissue tumors of infancy and childhood The pathogenesis of hemangiomas is not clearly understood Most cases are sporadic and…
