Article

Mammaglobin immunostaining in the differential diagnosis between cutaneous apocrine carcinoma and cutaneous metastasis from breast carcinoma.

Service of Cellular Pathology, Clinica Ponferrada, Spain.
Ceskoslovenska patologie 10/2009; 45(4):108-12. pp.108-12
Source: PubMed

ABSTRACT The differential diagnosis between cutaneous apocrine carcinoma (CAC) and cutaneous metastases from breast carcinoma is commonly difficult. Many times, clinical information is crucial in the final diagnosis, because help that can be obtained from immunohistochemistry is usually limited concerning this subject. We used the antibody mammaglobin in order to study 10 cases of cutaneous metastasis of ductal breast carcinoma, and 2 cases of CAC. One of the CAC cases showed only scattered positive cells, while the other did not show any positivity. Four cases of metastatic breast carcinoma also showed scattered positive cells. In other five metastatic cases, positive cells were abundant, representing up to 60% of the tumoral cells. One case of metastatic breast carcinoma did not show any expression of mammaglobin at all. Although, more cases of CAC should probably be studied in the future before any categorical conclusion can be obtained, our results seem to indicate that a pattern of immunostaining with expression of mammaglobin in many cells would favor a metastatic origin of the tumor.

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Keywords

2 cases
 
antibody mammaglobin
 
breast carcinoma
 
CAC
 
CAC cases
 
cases
 
categorical conclusion
 
clinical information
 
cutaneous apocrine carcinoma
 
cutaneous metastases
 
cutaneous metastasis
 
differential diagnosis
 
ductal breast carcinoma
 
final diagnosis
 
five metastatic cases
 
metastatic breast carcinoma
 
metastatic origin
 
study 10 cases
 
tumor
 
tumoral cells
 

A Fernandez-Flores