Ento Key

Eyelid Cystic Lesions Simulating Neoplasms Eyelid Eccrine Hidrocystoma General Considerations There are a number of cutaneous cystic lesions that can simulate neoplasms. In this section we discuss some of the…

Eyelid Lymphoid, Plasmacytic, and Metastatic Tumors Eyelid Lymphoma General Considerations The eyelids, as well as most other ocular structures, can be involved with benign and malignant lymphoid tumors (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15). The…

Eyelid Melanocytic Tumors Eyelid Melanocytic Nevus General Considerations Melanocytic nevus (1,2,3,4,5,6,7,8) consists of melanocytes derived from the neural crest that migrate to the skin during embryonic development (1,2). An eyelid…

Neural Tumors of the Eyelid Eyelid Neurofibroma General Considerations Neurofibroma is an important neural tumor that can affect skin in all parts of the body. It can develop as a…

Eyelid Sebaceous Gland Tumors Eyelid Sebaceous Hyperplasia and Adenom General Considerations Sebaceous glands of the eyelid area include the Meibomian glands of the tarsus, Zeis glands of the cilia, and…

Eyelid Hair Follicle Tumors Eyelid Trichoepithelioma General Considerations Trichoepithelioma is a benign tumor that can be solitary or multifocal (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16). Solitary trichoepithelioma is generally unassociated with genetic or systemic abnormalities….

Eyelid Sweat Gland Tumors Eyelid Syringoma General Considerations Simple cysts of eccrine or apocrine sweat glands are called eccrine hidrocystoma or apocrine hidrocystoma, respectively (see Chapter 11). Herein, we discuss…

Premalignant and Malignant Tumors of Eyelid Epidermis Eyelid Actinic Keratosis General Considerations Many aging changes in the skin, including the eyelid, are secondary to gradual damage from lifelong exposure to…

Benign Tumors of the Eyelid Epidermis There are many benign tumors and pseudotumors of the epidermis that are discussed in textbooks on dermatology. Many of these lesions can occur on…