Intracystic (encysted) papillary carcinoma of breast

Case contributed by Dr Giorgio M Baratelli

Patient Data

Age: 95 years
Gender: Female

The ultrasound shows a 35 mm complex cyst with:

  • posterior acoustic enhancement
  • low-level internal echoes (intracystic debris)
  • an ovoid hyperechoic nodule (10 x 5 mm) on inner wall, projecting into the cystic lumen.

Case Discussion

In the operating theatre the lesion was partially aspirated (haemorrhagic fluid) to prevent an accidental rupture and then it was completely removed under local anaesthesia.

Final pathological  diagnosis: intracystic papillary carcinoma, with  positive estrogen and progesterone receptors , negative HER-2-neu receptor and a Ki-67 index of 8%.

The intracystic (encysted) papillary carcinoma is a rare carcinoma with incidence of 0.5% to 1% of all breast cancers, usually seen in elderly women.

It is considered as an in situ or minimally invasive neoplasm.

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Case information

rID: 34761
Case created: 8th Mar 2015
Last edited: 18th May 2016
System: Breast
Inclusion in quiz mode: Included

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