An abnormal tissue mass. The term includes benign as well as malignant growths, so tumour and cancer are not always interchangeable.
A tumour arising in the testis. Germ-cell and other cellular origins produce different categories, so location alone does not determine histology or malignant potential.
A benign tumour composed of mature adipose tissue. It differs from a malignant adipose-tissue tumor, although a mass’s identity cannot be established from softness alone.
A benign tumour with fibrous connective-tissue differentiation. The term identifies a pathological category rather than every firm or scar-like mass.
An abnormal tissue growth involving the brain or adjacent intracranial structures. Location can produce serious effects even when a lesion does not metastasize, connecting confined anatomy with clinical consequences.
A nineteenth-century descriptive category of recurrent fibrous or fibroplastic growths, some showing destructive behaviour or metastasis. It is not equivalent to a benign uterine fibroid.
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