Intraneural Synovial Sarcoma of the Digital Nerve in a Hand by Jeong Hwan Kim, Hyuk Jin Lee, Ilkyu Han, Jae Hong Ha, and Goo Hyun Baek JBJS Case Connect Volume 4(2):e40 May 30, 2014 ©2014 by The Journal of Bone and Joint Surgery, Inc.
Initial MRI at the outside hospital showed a tumor on the volar side of the index finger. Jeong Hwan Kim et al. JBJS Case Connect 2014;4:e40 ©2014 by The Journal of Bone and Joint Surgery, Inc.
MRI taken at our clinic showed a recurrence of the tumor on the volar side of the index finger. Jeong Hwan Kim et al. JBJS Case Connect 2014;4:e40 ©2014 by The Journal of Bone and Joint Surgery, Inc.
Fig. 3 Photograph demonstrating the tumor located in the digital nerve of the index finger. Jeong Hwan Kim et al. JBJS Case Connect 2014;4:e40 ©2014 by The Journal of Bone and Joint Surgery, Inc.
Fig. 4 Photograph after excision of the tumor. Jeong Hwan Kim et al. JBJS Case Connect 2014;4:e40 ©2014 by The Journal of Bone and Joint Surgery, Inc.
Microscopic examination of the tumor specimen demonstrated a spindle cell neoplasm with moderately increased cellularity and mild-to-moderate nuclear atypia (hematoxylin and eosin stain; 10× magnification [left], 200× magnification [right]). Jeong Hwan Kim et al. JBJS Case Connect 2014;4:e40 ©2014 by The Journal of Bone and Joint Surgery, Inc.
Immunohistochemical staining was focally positive for EMA. Jeong Hwan Kim et al. JBJS Case Connect 2014;4:e40 ©2014 by The Journal of Bone and Joint Surgery, Inc.
In the FISH study, an SYT gene translocation was observed. Jeong Hwan Kim et al. JBJS Case Connect 2014;4:e40 ©2014 by The Journal of Bone and Joint Surgery, Inc.
Follow-up MRI at eighteen months after surgery showed no evidence of recurrence. Jeong Hwan Kim et al. JBJS Case Connect 2014;4:e40 ©2014 by The Journal of Bone and Joint Surgery, Inc.