A multipurpose diagnostic examination apparatus includes a diagnosis control unit (DCU), an attachment unit, and an image capture device (ICD). The attachment unit is detachably connected to and extends from a front end of the DCU. A microcontroller of the DCU receives and processes actuation signals from trigger elements of the DCU to indicate actions to be performed by the ICD removably connected to a camera module of the DCU, and/or by a medical diagnostic device (MDD) connected to the DCU via the attachment unit. The microcontroller facilitates transmission of diagnostic image data captured by the ICD and processed by the camera module, and diagnostic examination data from the MDD, to a medical diagnostic examination system (MDES) accessible on a local user device via a connector interface of the DCU. The MDES, in communication with a remote user device over a communication network, facilitates remote viewing, selection, and diagnostic examinations.