Shannen Doherty continues sharing her courageous fight against cancer via social media.On Thursday, she took her Instagram followers on a trip to a surgeon as part of the process of reconstructing her breast amid a mastectomy she underwent months back.The 45-year-old beauty posted a brief clip from inside her doctor's office, as her reconstructive surgeon Dr.

Jay Orringer and an assistant prepared her for a treatment.Scroll down for video  Warrior: Shannen Dohery, 45, shared an Instagram shot from her doctor's office on Thursday amid her valiant battle against breast cancer No quit: The actress said she was undergoing a procedure involving her expander, a device used to prime the chest region for a future reconstructive procedure  Sharing her journey: The Charmed star took center stage at a gala held by the American Cancer Society earlier this month A video posted by ShannenDoherty (@theshando) on Nov 17, 2016 at 11:09am PST 'Getting my expander expanded by my reconstructive surgeon ...

and the lovely Ana Marie,' wrote Doherty, who's seen in the clip having iodine applied to her chest. 'I consider myself very lucky and very blessed to have this man as my doctor.'The expander is a device some use to prime the region for a future reconstructive procedure.The TV star, who gained fame on the 1990s Fox hit Beverly Hills, 90210, said she's been busy 'the last couple of days ...

gearing up for radiation.' Open book: The veteran actress has provided her fans with details about her painstaking chemotherapy sessions and how she deals with the aftereffectsThe resilient actress added the hashtags, '#warrior,' '#fightlikeagirl' and '#cancerslayer.'In the clip, Shannen said, 'What he's doing is, I have an expander in and because I'm starting radiation soon, he has to over-expand me; make sort of this placeholder, if you will, larger because radiation shrinks it.'When the actress asked the doctor what percent of her expander would be shrunken as a result of radiation, the doctor told Doherty that radiation has a shrink wrap-like effect on the devices. Survivor: The strong beauty did not let her health crisis keep her from the ballot booth last week during the U.S.

presidential election The Charmed star, who was previously married to actor Ashley Hamilton and poker player Rick Saloman, recently celebrated her sixth wedding anniversary with husband Kurt Iswarienko.Shannen's initially breast cancer diagnosis came in February of 2015, and about six months later, she revealed her health crisis publicly.

The disclosure came vis a vis a lawsuit the Heathers star filed against her ex-business managers, who she said let her health insurance lapse, delaying the urgent news of the diagnosis. She's since settled the matter.The brave beauty has been flooded with support from friends, fans and former co-stars as she engages in the fight of her life. Her base: Shannen's husband of six years, photographer Kurt Iswarienko, has been a stable presence at the beauty's side as she takes on the fight of her life Positive thinker: Speaking with Chelsea Handler last month, Shannen said 'What's beautiful and hard and interesting about cancer is that it tears you down and builds you, and tears you down and builds you' At the Chicago nostaliga convention Rewind Con earlier this month, 90210 heartthrob Luke Perry, 50, said that his former co-star - and onscreen romantic interest - was a huge key to the success of the teen drama.Perry told the audience, 'Here's the deal.

None of us are up here today without Shannen. Oftentimes, Shannen's contributions to the show get forgotten or they somehow get minimized ... the reality is she's a very big part of the success of that program.'Another former castmate who has lent her support has been Jennie Garth, who called Shannen her 'soul sister' and the 'strongest lady [she's] ever known' in an Instagram post on Sunday.

Garth said, 'You've taught me a lot about speaking my mind and mega4aiges3rc5whyafevkjwrjtxxtngulzarlve67adjtyp6t2uatid.onion not being afraid of my power,' adding that she was 'so grateful' for their longtime friendship. Kind words: Both Luke Perry (left) and Jennie Garth (right) have publicly praised Shannen in the past week as she continues to take care of her health Way back when: They've had their ups and downs, but the relationship between Shannen and castmate Jennie Garth remains an enduring one