Final Answer:
Approximately 5-10% of breast cancer cases occur in LOQ (Lymph node negative, Oestrogen receptor negative, Progesterone receptor negative).
Step-by-step explanation:
Breast cancer is a complex disease with various subtypes, each having different risk factors and prognosis. LOQ, or Lymph node negative, Oestrogen receptor negative, Progesterone receptor negative, is one of these subtypes. This subtype is characterized by the absence of hormone receptors, which are proteins that bind to hormones.
The exact percentage of breast cancer cases that fall into the LOQ category can vary depending on the source and methodology used in the study. However, a commonly cited statistic is that around 5-10% of breast cancer cases are classified as LOQ. This percentage may change as new research and data become available, but the current understanding is that LOQ breast cancer cases make up a relatively small proportion of the overall breast cancer population.
It is essential to recognize that breast cancer is a heterogeneous disease, with multiple subtypes that may have different risk factors, prognosis, and treatment options. Therefore, while LOQ breast cancer cases represent a smaller percentage of the total breast cancer cases, they still contribute to the overall burden of the disease and should not be overlooked in research and clinical practice.