Bilateral Hypertrophy of Abductor Digiti Minimi Simulating a Localized Soft Tissue Mass: A Case Report

Yu-Hun Jung; Woo-Suk Song; Dong-Chan Eun

doi:10.14193/jkfas.2017.21.4.170

Journal List > J Korean Foot Ankle Soc > v.21(4) > 1043435

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Jung, Song, and Eun: Bilateral Hypertrophy of Abductor Digiti Minimi Simulating a Localized Soft Tissue Mass: A Case Report

Case Report

Journal of Korean Foot and Ankle Society 2017; 21(4): 170-173.

Published online: 18 December 2017

DOI: https://doi.org/10.14193/jkfas.2017.21.4.170

Bilateral Hypertrophy of Abductor Digiti Minimi Simulating a Localized Soft Tissue Mass: A Case Report

Yu-Hun Jung, Woo-Suk Song, Dong-Chan Eun

Department of Orthopaedic Surgery, Bundang Jesaeng General Hospital, Daejin Medical Center, Seongnam, Korea.

Corresponding Author: Woo-Seok Song. Department of Orthopaedic Surgery, Bundang Jesaeng General Hospital, Daejin Medical Center, 20 Seohyeon-ro 180beon-gil, Bundang-gu, Seongnam 13590, Korea. Tel: 82-31-779-0175, Fax: 82-31-779-0179, sowoosuk@naver.com

Received 10 May 2017 Revised 12 June 2017 Accepted 21 June 2017

Korean Foot and Ankle Society

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Soft tissue tumors of the foot have a low incidence rate, and most of them are symptom free, thus it is difficult to diagnose accurately. Herein, we report a 15-year-old male patient who had swelling without pain on the lateral margin of both feet. We performed excisional biopsy of the abductor digiti minimi via subtotal resection, following radiograph and magnetic resonance imaging. According to the histological analysis, hypertrophy of abductor digiti minimi was positive, and other soft tissue tumors were negative. Six months after the operation, normal appearance of both feet was maintained and the patient was satisfied with the result.

Keywords: Foot, Muscle hypertrophy, Abductor digiti minimi muscle

Figures and Tables

Figure 1

Soft tissue mass at the lateral aspect of the both foot was shown at first presentation. (A) Anterior view. (B) Right angular view. (C) Left angular view.

Figure 2

Diameters of the abductor digiti minimi muscles of both feet at first presentation were 20.7 mm on the left side (A) and 18.4 mm on the right side (B) on ultrasound scan.

Figure 3

Magnetic resonance imaging of both feet at first presentation showed diffuse muscular swelling and clear accentuation of the abductor digiti minimi muscle in the both foot. (A) Left side. (B) Right side.

Figure 4

(A, B) The left side hypertrophic abductor digiti minimi muscle and the excised specimens were shown intraoperatively.

Figure 5

Microscopic view of the specimen was taken during the operation (H&E stain, ×10) showing hyperplasia and hypertrophy of the skeletal muscle tissue.

Figure 6

Six months after the operation, normal appearance of both feet was maintained. (A) Anterior view. (B) Right angular view. (C) Left angular view.

Notes

^{Financial support} None.

^{Conflict of interest} None.

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