Ento Key

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…

Impetigo Key Points Impetigo is a highly contagious bacterial skin infection It is most common in warm tropical climates, with crowded living conditions, poor hygiene, and lower socioeconomic conditions Impetigo…

Ichthyosis Key Points Ichthyosis is a heterogeneous group of disorders characterized by abnormal cutaneous keratinization with scale formation These are divided into nonsyndromic and syndromic forms of inherited ichthyoses and…

Hidrocystoma Key Points Hidrocystomas are benign cystic lesions of sweat glands seen most commonly on the face, especially on the eyelids Hidrocystomas are categorized into apocrine and eccrine types Apocrine…

Hidradenoma Key Points Most hidradenomas are probably of apocrine rather than eccrine origin Fifty percent of hidradenomas harbor the t(11;19) translocation: the fusion of MECT1 gene on chromosome 19p13, with…