Seborrheic Keratosis in the Auricle: A Rare Tumor

Composite Tumor Associating Trichoblastoma and Seborrheic Keratosis

Seborrheic keratosis is a common benign epidermal tumor histologically composed of basaloid and squamous cells. It mainly occurs on the face, scalp, and trunk, and presents clinically as a well-circumscribed, brownish to black papule, nodule, or plaque. Trichoblastoma is a relatively rare benign, slow-growing tumor showing differentiation toward the primitive hair follicle. It clinically manife...

A rare interesting case of seborrheic keratosis of pinna

Seborrheic keratosis is a benign tumour of external ear originating from proliferative epithelial cells. Its most common site ranges from the retroauricular region to the helical rim. Diagnosis is made on the basis of clinical & histopathological examination. Here, we discuss the clinical presentation, differential diagnosis, pathological diagnosis and management of such a case.

Dermatofibroma simulating seborrheic keratosis dermoscopically*

Dermatofibroma is a frequent benign tumor of easy clinical diagnosis in most cases, but that can mimic other dermatoses. Dermoscopy may help to define the diagnosis and its classical pattern is a central white area, similar to a scar, surrounded by a discrete pigment network. However, dermoscopic findings are not always typical. We describe here a case of dermatofibroma exhibiting ridges, furro...

A naturally occurring ring seborrheic keratosis.

Eficacy of calcipotriol in the treatment of seborrheic keratosis: a pilot study

Background: Seborrheic keratosis is a common benign tumor and many modalities are used to treat it. No convincing data favors the therapeutic effect of calcipotriol on seborrheic keratosis. We aimed to assess the efficacy of calcipotriol in the treatment of this tumor.Method: Eligible patients aged over 40 years with seborrheic keratosis (size: 5-15mm) were instructed to apply 50?g/g calcipotri...