I was looking through the LT4041 datasheet and saw this:
The 10mOhm resistor with the two nodes really close to it - is that a "special" resistor or something? Why have they drawn it like that?
It is a regular sense resistor with a kelvin connection. The dots are there to show a connection with the wires. A kelvin connection measures the current through the sense resistor for the DC to DC converter. It is important to make the connection to avoid parasitic resistance in the traces as shown below.
Source: 4-terminal shunt resistor
Those are just junction dots like all of the others nearby, to show where 3 wires connect. This is called a Kelvin connection. The idea is that the connection should be as close as possible to the resistor. There are also some 4-terminal resistors made especially for this purpose.
See Four-terminal sensing on Wikipedia for more information.