SN65MLVD2: Clarification of Thermal Resistance Value

Part Number: SN65MLVD2

Tool/software:

Hi, I refer to SN65MLVD2DRBT (https://www.ti.com/product/SN65MLVD2/part-details/SN65MLVD2DRBT?keyMatch=SN65MLVD2DRBT&tisearch=universal_search&usecase=OPN

I understand from the datasheet that the thermal resistance from junction to case (Theta_JC) is 98degC/W. Could I confirm that this refers to the case top? 

Thank you