The valve is normally shaped like a leaf but when it degenerates, it becomes thickened and begins to take on
a more nodular appearance.
Not exact matches
The sea star seems to survive because its calcium is
nodular, so unlike species with continuous shells or skeletons it can compensate for a lack of carbonate by growing
more fleshy tissue instead.
Cats have two thyroid glands, and in most cases (
more than 70 %) both are involved in the disease, and become enlarged (a change called «
nodular hyperplasia», which resembles a very benign tumour).
The malignant form of primary liver cancer either forms a single lobular mass on the organ or may cause multi
nodular masses, which are
more complicated in nature and which can spread rapidly to other parts of body, especially brain directly through the hepatic portal vein.