The Office star Jenna Fischer reveals she was diagnosed with 'aggressive' breast cancer

The Office star Jenna Fischer has said she was diagnosed with an ‘aggressive’ form of breast cancer last year but is now cancer-free.

The 50-year-old, who played Pam Beesly in the sitcom, said the cancer was found after an ‘inconclusive’ mammogram due to ‘dense’ breast tissue.

Results from a biopsy showed she had stage 1 triple positive breast cancer which Jenna said was ‘aggressive but highly responsive to treatment.’

Jenna underwent a lumpectomy, as well as radiation and chemotherapy treatment and is now cancer-free.

The actor said she was sharing her story for the first time on Instagram to mark breast cancer awareness week.

She wrote: ‘Luckily my cancer was caught early and it hadn’t spread into my lymph nodes or throughout the rest of my body, however because of the aggressive nature of triple positive breast cancer it still required chemotherapy and radiation to be sure it didn’t return.

Jenna Fischer as Pam Beesly working on reception in The Office — Jenna, who played Pam in The Office, urged other women to have mammograms (Picture: NBCUniversal via Getty Images)

Jenna Fischer as Pam Beesly and John Krasinski as Jim Halpert smiling in the stock room in The Office — She underwent a lumpectomy, chemotherapy and radiotherapy (Picture: NBCUniversal via Getty Images)

Jenna Fischer as Pam Beesly and John Krasinski as Jim Halpert by the water cooler in The Office — Jenna said she was declared cancer-free in her most recent appointment (Picture: NBCUniversal via Getty Images)

CoppaFeel! offers these simple steps on how to check your own chest for signs of cancer.

Look

Look at your boobs, pecs or chest.
Look at the area from your armpit, across and beneath your boobs, pecs or chest, and up to your collarbone.

Be aware of any changes in size, outline or shape and changes in skin such as puckering or dimpling.

Feel

Feel each of your boobs, pecs or chest.
Feel the area from your armpit, across and beneath your boobs, pecs or chest, and up to your collarbone.

Be aware of any changes in skin such as puckering or dimpling, or any lumps, bumps or skin thickening which are different from the opposite side.

Notice your nipples

Look at each of your nipples.

Be aware of any nipple discharge that’s not milky, any bleeding from the nipple, any rash or crusting on or around your nipple area that doesn’t heal easily and any change in the position of your nipple

‘It becomes all about doctor appointments, test results, treatments and recovering from treatments. Suddenly everything in your life is geared around one thing: fighting cancer.’

Jenna finished her post by thanking her support system, including her The Office co-star Angela Kinsey, who played Angela, who ‘protected and advocated for her’.

She said she was the ‘only person’ in the workplace for a ‘long time’ who knew of Jenna’s diagnosis and would wear hats in meetings with Jenna when she lost her hair so she ‘wouldn’t be the only one.’

Jenna also thanked her doctors, nurses, caregivers, friends, her husband Lee Kirk and two children.