This is a highly aggressive tumour, with a median survival of 7.5 months.

It's an aggressive tumour and it's in the most delicate place.

It is therefore unlikely that the increased protein synthesis in benign tumours represents a metabolic marker for the malignant phenotype and more aggressive tumour.

Amplification or overexpression of HER-2 is present in 25-30% of breast carcinomas and has been associated with aggressive tumour phenotype, poor prognosis, non-responsiveness to hormonal therapy and reduced sensitivity to conventional chemotherapeutic agents.

Serious side effects have also been reported as a result of FeLV vaccination; in particular, a small percentage of cats who received FeLV vaccines subsequently developed vaccine-associated sarcomas, an aggressive tumour, at the injection site.

The Trojani system scores the sample, depending on tumour differentiation, mitotic index, and tumour necrosis, between 0 and 6 and then converts this into a grade of between 1 and 3, with 1 representing a less aggressive tumour.

DLBCL is an aggressive tumour which can arise in virtually any part of the body, and the first sign of this illness is typically the observation of a rapidly growing mass, sometimes with associated fever, weight loss, and night sweats.