1. Same as OtoHNS
2. Same as OtoHNS. A poorly placed suture could cause the platysmal closure tissues to bunch up and form a lump, apart from the strap closure, but this is pretty hard to screw up.
A couple other possibilities that come to mind, in general, it depends on how far out from the surgery the patient is as to the likely cause of a "lump."
- It is not uncommon to get edema that is more prominent above the incision due to the interrupted lymphatic drainage. This can last for a few weeks or sometimes longer.
- If there is a low grade cellulitis/infection (or especially a wound infection), that can create a firmness that can persist for several weeks.
- If a surgical drain was used, that could have broken off or been caught by a deep suture and a piece retained in the wound.
- Maybe the surgeon did the wrong operation and put a thyroid gland in, rather than removing a thyroid gland. 😉