Pseudoepitheliomatous Hyperplasia Key Points Secondary pseudoepitheliomatous hyperplasia (PEH) is a benign proliferative pseudoneoplastic response to trauma, wounds, burns, radiation therapy, cryotherapy, pharmaceutical agents, and cutaneous malignancies Primary PEH has no…
Pleomorphic Adenoma (Mixed Tumor) Key Points Pleomorphic adenomas arise most often in the lacrimal or salivary glands, and less commonly from ectopic periorbital lacrimal gland tissue, sweat glands of Moll,…
Pilomatrixoma Key Points Pilomatrixoma is a benign tumor of the hair follicle It occurs in any hair-bearing areas of the body, most often in the skin of the head and…
Phakomatous Choristoma Key Points Phakomatous choristoma is a very rare congenital lesion It is believed to arise early in the embryogenesis of the eye during the optic vesicle stage as…
Pemphigus Vulgaris Key Points Pemphigus vulgaris (PV) is an autoimmune disease in which autoantibodies are directed against desmosomal adhesion molecules resulting in blistering in the suprabasal layers of the cutaneous…
Oculodermal Melanocytosis Key Points Oculodermal melanocytosis is a benign congenital anomalous pigmentation of deep facial skin and ocular tissues It is a dermal melanocytic hamartoma that presents with unilateral or…
Ocular Cicatricial Pemphigoid Key Points Mucous membrane pemphigoid describes a heterogeneous group of autoimmune disorders characterized by chronic inflammatory, mucous membrane blistering involving the ocular, oral, genital, nasopharyngeal, esophageal, or…
Nevus Sebaceous of Jadassohn Key Points Nevus sebaceous of Jadassohn (NSJ) is a congenital hamartoma of the pilosebaceous follicular unit The pathogenesis of NSJ is unknown, but a developmental arrest…
Nodular Fasciitis Key Points Nodular fasciitis is a rare benign reactive lesion characterized by a proliferation of fibroblasts and myofibroblasts that involve subcutaneous tissue, skeletal muscles, and fascia It is…
