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A navel stone mimicking a urachal sinus
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  1. Hidehiko Nakano1,
  2. Takashi Watari1,
  3. Yu Suganami1,
  4. Yasuharu Tokuda2
  1. 1Shonan Kamakura General Hospital, Kamakura City, Kanagawa, Japan
  2. 2General Internal Medicine, Tsukuba University, Mito, Ibaraki, Japan
  1. Correspondence to Professor Yasuharu Tokuda, yasuharu.tokuda{at}gmail.com

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Description

Anyone can experience finding a navel lint in one's own navel, but how does it become big?

A navel lint, also called navel fluff, belly button lint or belly button fluff, consists of cloth-like fluffy fibres mixed with cutaneous scales, fat or protein.1 Several case reports indicate that a navel lint could cause omphalitis or even sepsis.2 ,3

A 96-year-old woman presented …

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