papillary structures

What are Pathological Changes in Papillary Structures?

Papillary structures can undergo various pathological changes, which can be indicative of certain diseases. For instance:
Papillomas: These are benign tumors that arise from the epithelial layer and exhibit papillary structures.
Papillary Carcinomas: These are malignant tumors characterized by the presence of abnormal papillary structures, such as in papillary thyroid carcinoma or papillary renal cell carcinoma.
Inflammatory Changes: Inflammatory conditions can lead to changes in the papillary structures, such as in psoriasis, where the dermal papillae become elongated.

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