English to Italian Medical Medical (general) medical procedure

Sto leggendo la descrizione delle fasi di una parotidectomia.
Mi capita due volte di incontrare il termine TRAGAL POINTER.

Sono arrivata a capire che tragal è un aggettivo derivato dal sostantivo TRAGUS (in italiano, TRAGO).
Però non capisco se "pointer" sia ridondante e voglia solo richiamare il "peduncolo" del trago, in altre parole se "tragal pointer" in italiano vada semplicemente tradotto "trago".


Steps of a Parotidectomy
1. Modified Blair skin incision is outlined and created to extend from in front of the auricle under the lobule and arching below the mandible. Incision is approximately two finger breadths under the mandible to avoid the marginal mandibular branch of the facial nerve.

2. Entire face is draped out to monitor the facial nerve. Cotton ball
placed in ear canal to prevent blood from entering.

3. Skin flap is elevated above the temporal parotid fascia, exposing the parotid gland.

4. Inferior portion of the parotid gland is dissected away from sternocleidomastoid muscle. (Care is taken as to not injure retromandibular vein. If ligated, increased bleeding may result
during parotid dissection.)

5. Dissection is carried down until digastric muscle is identified.

6. ***Tragal pointer*** identified superiorly. (Facial nerve usually lies 1 cm
below and 1 cm deep to this pointer.)

7. Tissue anterior to mastoid tip and above ***tragal pointer*** is carefully divided.

[...]