Complex cyst identified on ultrasound (started around 4 - 5 weeks post op)?

I had removal and replacement of implants 6 weeks ago and uplift. I felt a lump in 4 o clock position of left breast. Ultrasound at 6 weeks post op shows hypoechoioc nodule 9 x 5 x 6mm. complex with multiple fine internal separations and some wall thickening. Bilateral breast implants in place and no evidence of of intra/extra capsular rupture. I have never had a breast cyst before. Could this be related to surgery? Seeing my surgeon next week but interested in thoughts. Thanks in advance :)

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