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Table 2 Ultrasound imaging features of NMC/NMC-DTF

From: Clinical features and ultrasound findings of a rare musculoskeletal system disease–neuromuscular choristoma

Patient Age/Sex Location Morphology of involved nerve Transformation to DTF NMC-DTF size (cm) NMC-DTF margin NMC-DTF echo intensity and morphology CDFI grade Spatial relationship between NMC-DTF and involved nerves Local recurrence
1 22/F sciatic nerve Hypoechoic, fusiform enlargement Yes 12.6 × 6.3 × 3.4 Well-circumscribed Hypoechoic solid lesion, irregular shape 1–2 NMC-DTF envelops the branches of the left sciatic nerve No
2 2/M sciatic nerve Hypoechoic, fusiform enlargement, hyperechoic striated appearance in the nerve Yes 13.6 × 4.4 × 3.8 Well-circumscribed Solid lesion with heterogeneous internal echo, irregular shape 1–2 NMC-DTF envelops the proximal adjacent nerve No
3 6/M sciatic nerve Hypoechoic, fusiform enlargement Yes 24 × 17 × 12 Well-circumscribed Hypoechoic solid lesion, irregular shape 1–2 NMC-DTF envelops the proximal adjacent nerve Twice
4 10/F brachial plexus Nerve invisible due to massive NMC-DTF Yes 5.5 × 5.5 × 3.3 Well-circumscribed Heterogeneous hypoechoic solid lesion, irregular shape 1–2 Nerve structure is invisible due to massive NMC-DTF No
5 2/M sciatic nerve Hypoechoic, fusiform enlargement Yes 6.3 × 4.6 × 3.6 Well-circumscribed Hypoechoic solid lesion, irregular shape 1–2 NMC-DTF envelops the proximal adjacent nerve Once
6 4/M sciatic nerve Hypoechoic, fusiform enlargement No No
7 3/F sciatic nerve Hypoechoic, fusiform enlargement No No
  1. NMC Neuromuscular choristomas, NMC-DTF Neuromuscular choristomas associated desmoid-type formation, CDFI Color Doppler blood flow imaging