Seborrheic Keratosis of Pinna: A Rare Case Report

Introduction: Seborrheic keratosis is a rare benign tumor of epidermal origin.They commonly present after the 5th decade, without any sexual predilection.They have a long duration of presentation.Commonly involved sites are the face, arms, sides of the neck, and interscapular region.Case description: A 52-year-old male patient presented to the department of otorhinolaryngology (ORL)-head and neck surgery with a history of swelling in the conchal region of the right pinna since 30 years.It was gradual in onset and slowly growing in size.The patient was otherwise asymptomatic, without any known comorbidities.On examination, a grayish black colored swelling was seen occupying the conchal bowl of the right pinna.The swelling measured around 2 cm in diameter and was nontender, firm in consistency, with an irregular fissured surface attached with a broad-based pedicle.Examination of other systems was insignificant.The swelling was excised under local anesthesia, and the wound was allowed to heal by secondary intention.The specimen was sent for histopathological examination.Results: Postoperative management included oral antibiotics, analgesics, and regular wound dressing.The patient is symptom free at 15 months follow-up.Conclusion: Seborrheic keratosis is a rare benign condition with excellent results following simple excision.Other treatment modalities following excision, like split skin graft, negative pressure wound dressing, and platelet rich plasma, play an adjunctive role in wound healing.Sudden eruption of multiple seborrheic keratoses and increase in the size and number of existing keratoses should arouse the suspicion of malignant change.Careful follow-up of the cases for recurrence and malignant change is advised.