CPT® Code 69554

The procedure described by CPT® Code 69554 involves the excision of an aural glomus tumor through an extended extratemporal approach. Aural glomus tumors are benign neoplasms that originate from paraganglionic cells located in glomus tissue, which is situated near the temporal bone. These tumors can be categorized into two main types: glomus jugulare tumors, which arise from the adventitia of the dome of the jugular bulb, and glomus tympanicum tumors, which develop from glomus bodies along the tympanic branch of the glossopharyngeal nerve. The choice of surgical approach for excising these tumors is determined by their size and location. For smaller tumors confined to the middle ear, a transcanal approach (CPT® Code 69550) is utilized, where the external auditory canal is accessed and enlarged to expose the tumor. In cases where the tumor has extended into the mastoid bone, a transmastoid approach (CPT® Code 69552) is employed, involving an incision behind the ear to access and clear the mastoid cells of tumor tissue. However, when the tumor has invaded the temporal bone, as in the case of CPT® Code 69554, a more extensive surgical intervention is required. This involves a C-shaped incision that begins above the ear and extends around the ear and down the neck, allowing for the elevation of a flap to expose critical structures such as the temporal muscle, mastoid bone, and neck anatomy. The procedure aims to achieve complete removal of the tumor while preserving hearing whenever possible, although it may necessitate sacrificing the external auditory canal and middle ear structures depending on the tumor's precise location.