Natasha Brownbill, a 33-year-old mother from St Helens, Merseyside, discovered a small, hard lump in her left breast while showering on June 18, 2025. On maternity leave and breastfeeding her six-month-old son, she was repeatedly told the lump was likely a benign milk cyst. However, it turned out to be a rare and aggressive form of breast cancer.
Initial Misdiagnosis
The day after finding the lump, Natasha visited her GP and was referred to the Burney Breast Unit on the NHS two-week wait pathway. While awaiting the appointment, she paid approximately £800 for a private scan at Circle Health Group on June 25, where she was reassured there was no cancer. She said, "I actually questioned whether I even needed to go to my NHS appointment because I'd been reassured after having the private scan."
At the NHS clinic on July 3, she was again told the lump looked like a benign milk cyst, with plans to monitor it until she finished breastfeeding. However, the lump grew larger and more painful, prompting her to request it be drained. The aspiration produced blood-stained fluid instead of milk, and the sample was sent for testing. The lump refilled completely within 12 hours.
Diagnosis and Treatment
Further aspirations, an MRI, and three core biopsies led to the diagnosis on August 1, 2025. Natasha said, "He said, 'I'm so sorry, but the results say it's malignant.' My whole world just collapsed." She was diagnosed with stage 2, grade 3 metaplastic triple-negative breast cancer, a rare subtype accounting for less than 1% of breast cancers. Her NHS doctor noted that in 15 years as a specialized cancer nurse, she had only seen two cases of this type, including Natasha.
Natasha stopped breastfeeding almost overnight and began chemotherapy on August 13, 2025. After six months, she had surgery on both breasts in February 2026, followed by 15 rounds of radiotherapy in April. She continues to receive immunotherapy every six weeks. Treatment side effects included hair loss despite cold capping, sepsis, a PICC line, genetic testing, and counselling, all while caring for her two children.
Recovery and Advocacy
Following surgery, tests showed a pathological complete response with no active cancer detected. Natasha is now fundraising for Breast Cancer Now and the Chris Aked Foundation, urging others to trust their instincts. She said, "If I'd accepted the reassurance or hadn't trusted my instincts enough to ask them to drain the lump, I genuinely don't know where I'd be today. I want people, especially young women, to know that they deserve to be listened to. Just because you don't fit the typical profile doesn't mean cancer isn't possible."
Circle Health Group was contacted for comment.
