Immunophenotypes of glycogen rich clear cell carcinoma

Sung Eun Kim, Ja Seung Koo, Woo Hee Jung

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Purpose: Glycogen rich clear cell carcinoma (GRCC) of the breast is a rare subtype of invasive ductal carcinoma and involves a poor prognosis. In the literature, less than 150 cases have been reported. Many researchers have attempted to characterize GRCC according to electron microscope, flow cytometry, or clinical data. However, an organized study of the immunophenotype of GRCC has yet to be reported. Materials and Methods: Here, we present three cases of GRCC and their immunohistochemical profiles. Results: Histologically, all three cases contained periodic acid stain (PAS) positive and d-PAS labile granules in their clear cytoplasm. Case I showed positivity for only estrogen receptor (ER) and c-erbB2. Case II exhibited positivity for progesterone receptor and negativity for ER and c-erbB2. Case III presented with triple negative invasive carcinoma. The expression pattern of E-cadherin was concordant with epidermal growth factor receptor and c-kit, but discordant with ki-67. Among these three cases, p53-positive cases exhibited a low proliferative index (ki-67: 15%), while p53-negative cases showed a high proliferative index (ki-67: 50-60%). Conclusion: In conclusion, the immunophenotype of GRCC is not uniform, but is similar to that of conventional ductal carcinoma.

Original languageEnglish
Pages (from-to)1142-1146
Number of pages5
JournalYonsei medical journal
Issue number6
Publication statusPublished - 2012 Nov

All Science Journal Classification (ASJC) codes

  • General Medicine


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