Answered by The Community. Making the world better, one answer at a time. A delta is an area where a river enters a larger body of water. Weathered particles are eroded and then deposited when the momentum of the river slows down.So a delta has to start with weathered particles and then the particles have to be eroded and then they are deposited.aking the world better, one answer at a time. A delta is an area where a river enters a larger body of water. Weathered particles are eroded and then deposited when the momentum of the river slows down.
INTRODUCTION: Inverted papilloma (Schneiderian papilloma) is a primarily benign lesion that occurs in the nasal cavity and paranasal sinuses. Clinical problems include a tendency towards local destruction, recurrence and malignant transformation into squamous cell carcinoma.
Papillary urothelial lesions. 1  Urothelial papilloma. 2  Inverted papilloma. 3  Papillary urothelial neoplasm of low malignant potential (PUNLMP). PUNLMP is pronouced pun-lump. 4  Low grade papillary urothelial carcinoma. 5  High grade papillary urothelial carcinoma.