Fibroadenoma

  It is a noncancerous tumor mainly found in the breast of the women aged under 30.
  They are composed mainly of stromal and epithelial tissues.
   We all know that breasts are made up of milk producing glands known as lobules and ducts. All this arrangements are surrounded by some fatty tissues.
  Fibroadenoma started to develop from the lobules and ducts and spread all over it to form a solid structure commonly  known as lump. The lumps often highly mobile in the breast. This is the main difference with breast cancer.
  It occurs mainly due to the hormonal imbalance.  Estrogen may responsible for this type of noncancerous growth. This can grow during the time of pregnancy and menopause.
  Fibroadenoma can be classified into two types.
1. Simple : Purely noncancerous.
2. Complex : They have slight tendency to turn into cancer.
Breast ultrasound and mammogram tests may be used to diagnose Fibroadenoma.  But after diagnosis the removal is not necessary for most of the cases. If it causes pain and the if a patient have family history of cancer only then it is important to remove these lumps.
  But sometimes it is possible for one or more to grow in its place after its removal.
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Video taken from you tube.