A 63-year-old female with a 25-year history of an exquisitely painful callus located at the lateral margin of the right fifth metatarsal is seen by you in your office. The patient states that she must have the lesion debrided every two months to avoid pain when wearing shoes. She warns you in advance to be careful when you debride the lesion because the lesion also hurts when it is debrided. After you remove the overlying callus, you notice a mosaic-looking lesion with multiple small keratotic plugs seated next to each other, forming a plaque (Figs. 1A and 1B). No pinpoint bleeding is noted. You decide to bluntly remove the lesion, thinking it is not a simple callus. Histologically, multiple rectangular-shaped plugs of keratin are seen with rounded bases. Beneath these keratinous plugs, the underlying epithelium is hyperplastic. Each plug is separated by air...
Skip Nav Destination
Research Article| March 01 2008
What’s Your Diagnosis?
Harvey Lemont, DPM
Harvey Lemont, DPM
*Director, Laboratory of Podiatric Pathology, Philadelphia, PA 19107; Professor emeritus, School of Podiatric Medicine, Temple University, Eighth at Race Street Philadelphia, PA 19107. (E-mail: firstname.lastname@example.org)
Search for other works by this author on:
J Am Podiatr Med Assoc (2008) 98 (2): 137–138.
- Views Icon Views
- Share Icon Share
- Search Site
Harvey Lemont; What’s Your Diagnosis?. J Am Podiatr Med Assoc 1 March 2008; 98 (2): 137–138. doi: https://doi.org/10.7547/0980137
Download citation file:
Citing articles via
Functional Bandaging in Children with Idiopathic Toe Walking
Deniz Tuncer, Ekin Ekin Akalan, Meliha Mine Caliskan, Yener Temelli, Pakize Yigit
A safety and effectiveness evaluation of a callus softener containing potassium hydroxide
Kevin Towle, Jordan Kozal, David Galbraith, Andrew Monnot
The Painful Bipartite Medial Cuneiform: A Case Report
Daniel Pollack, Matthew A. Diament, Yelizaveta Kotlyarova, Yechiel N. Gellman
Ultrasound-Guided Decompression of the Intermetatarsal Nerve for Morton's Neuroma: A Novel Closed Surgical Technique
Alvaro Iborra-Marcos, DPM, PhD, Manuel Villanueva-Martinez, MD, PhD, Stephen L. Barrett, DPM, Pablo Sanz-Ruiz, MD, PhD