What do some abbreviations in breast immunohistochemical results stand for?

CK5/6 is a kind of cytokeratin. Generally speaking, its positive prognosis is poor.

P53 is an index to check whether it is cancerous. If it is positive, it means it is malignant. Now it is negative (-), which means it is normal.

Calponin is a fine (slightly white) protein, which can combine actin, calmodulin, troponin C and myosin to participate in cytoskeleton formation, muscle contraction and cell adhesion, and may play an important role in the occurrence, development and metastasis of tumors.

P63 is a member of P53 gene family and a sensitive and specific marker of myoepithelial cells. The intensity of positive expression is negatively correlated with the prognosis of patients and can be used as an independent prognostic indicator.