Acquired periungual fibrokeratoma with accessory germinal matrix
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1Department of Plastic and Reconstructive Surgery, Otsu Red Cross Hospital, Shiga 520-8511, Japan. susu.sai@d4.dion.ne.jp
Abstract:
Five cases of acquired periungual fibrokeratoma involving the proximal nail fold were treated surgically. Clinically, all five patients regained normal nail contours postoperatively, but one patient developed a local recurrence 1 year after operation. Histologically, an accessory germinal matrix was observed at the distal end of the lesion in all five cases. Change in pressure around the lesion seemed to have induced the formation of this accessory germinal matrix.
Insights
Surgical treatment for acquired periungual fibrokeratoma involving the proximal nail fold achieved normal nail contours in all patients. However, one case recurred locally after a year, possibly due to an accessory germinal matrix induced by pressure.
Area of Science:
- Dermatology
- Surgical Pathology
Background:
- Acquired periungual fibrokeratoma is a rare tumor.
- Lesions involving the proximal nail fold can affect nail contour.
Purpose of the Study:
- To report surgical outcomes of acquired periungual fibrokeratoma.
- To investigate histological findings and potential recurrence factors.
Main Methods:
- Surgical excision of five cases of acquired periungual fibrokeratoma.
- Clinical follow-up for nail contour restoration.
- Histopathological examination of resected lesions.
Main Results:
- All five patients achieved normal nail contours post-surgery.
- One patient experienced local recurrence one year after the procedure.
- Histology revealed an accessory germinal matrix at the distal lesion end in all cases.
Conclusions:
- Surgical management can restore nail contour in acquired periungual fibrokeratoma.
- Accessory germinal matrix formation, potentially pressure-induced, may be linked to recurrence.
- Further investigation into the etiology of accessory germinal matrix is warranted.
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