Dermoscopic features of Clear Cell Acanthoma: A Case Report and Review of the Literature

Clear cell acanthoma is an uncommon type of benign epithelial tumor. Typically, it is a solitary lesion found on the lower limbs. It presents as a nodule or small plaque with slow and well-defined growth. Diagnosis used to be clinical and histopathological, but the advent of dermoscopy has led to an increase in diagnostic accuracy. We describe a case in which dermoscopy proved highly useful for diagnosis of the lesion.

Successful Treatment of Adult-Onset Recurrent Respiratory Papillomatosis with CO2 Laser and Photodynamic Therapy

Recurrent respiratory papillomatosis is a noninvasive benign epithelial tumor caused by human papillomavirus. Clinically, it featured rapid growth, multifocus, and frequent recurrence. Though a number of therapies have been investigated, the recurrence after treatment is always a challenge. In this report, we describe a 27-year-old male patient with recurrent respiratory papillomatosis who was treated with CO2 laser therapy followed by 5-aminolevulinic acid photodynamic therapy (ALA-PDT). There was no adverse reaction after treatment and no recurrence during the follow-up time.

Bilateral Inverted Papilloma of the Paranasal Sinus: Literature Review

ABSTRACT Objective We describe an unusual case of bilateral nasal inverted papilloma. Case report Inverted papilloma is a benign epithelial tumor that frequently occurs unilaterally. We report a 65-year-old male patient with a bilateral inverted papilloma located in the ethmoid and maxillary sinus. Functional endoscopic sinus surgery was performed in order to completely remove both tumors. Conclusion We present a rare entity of bilateral independent sinonasal papilloma treated successfully with endoscopic sinus approach.