Abstract
Keratoacanthoma (KA) is a low grade, rapidly growing skin tumor which is thought to originate from the pilosebaceous unit from hyperkeratosis of the infundibulum and are often thought to originate on hair bearing skin or sun exposed surfaces. There are very scarce reports demonstrating they may occur in other areas such as mucous membranes or soles of the feet. We present a rare case of palmar KA in a 65-year-old female with no known antecedent history. Surgical excision was performed with complete removal of the tumor. Following surgical excision, the pathology of the irregularly elevated 0.7 x 0.2 cm lesion revealed a keratoacanthoma. The patient remained without evidence of recurrence at one year follow-up. We believe there is only one other report of isolated palmar KA to date in the literature. We review relevant literature on hand KA.
Highlights
Keratoacanthoma (KA) is a low-grade, rapidly growing skin tumor which is thought to originate from the pilosebaceous unit from hyperkeratosis of the infundibulum
Keratoacanthomas are often thought to originate on hair-bearing skin or sun-exposed surfaces, there are very scarce reports demonstrating they can occur such as mucous membranes or soles of the feet [2]
Keratoacanthoma is a prototype of pseudo-malignant skin tumors and usually forms within a four-to-six-week period [1, 3]
Summary
Keratoacanthoma (KA) is a low-grade, rapidly growing skin tumor which is thought to originate from the pilosebaceous unit from hyperkeratosis of the infundibulum. We present a rare case of palmar KA in a 65-year-old female with no known antecedent history. Surgical excision was performed with complete removal of the tumor.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
