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3 out of 6

Lesions affecting the teminal duct lobulat unit (TDLU) in breast are all except(AIIMS May 2012)

A Nipple adenoma
B Blunt duct adenosis

C Intraductal papilloma
D Fibroadenoma

Ans. C Intraductal papilloma

Successive branching of the large ducts eventually leads to the terminal duct lobular unit (TDLU).

All breast cancers whether ductal or lobular originate from terminal duct lobular unit (TDLU).

Most of the benign breast diseases also originate from TDLU except intraductal papilloma, 90% of which occurs in large ducts in the central portion of breast.