They are composed of islands, large nests, or sheets of tumor cells forming ductules, which are lined by cuboidal to columnar epithelium. |
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There is a proliferation of ductules, usually at the marginal areas of the triads. |
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The bile canaliculi join with the bile ductules, which then form the bile ducts. |
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Under the low pressure of bile secretion, bile flows continuously along converging canaliculi, ductules and ducts. |
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Milk travels from the alveoli, via ductules, into the lactiferous ducts that open on to the surface of the nipple. |
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