Submit a formalin-fixed, paraffin embedded (FFPE) tissue block

Formalin-fixed, paraffin embedded (FFPE) tissue block

 FFPE tissue section mounted on a charged, unstained slide

Ambient (preferred)

• Unlabeled/mislabeled block
• Insufficient tissue
• Slides broken beyond repair

Immunohistochemical staining and microscopic examination

If requested, an interpretive report will be provided

Specifications

• The antibody recognizes a protein in the superficial cell layer of the urothelium
• Uroplakins are specific differentiation products of terminally differentiated superficial urothelial cells

Staining pattern

• Membranous or luminal based staining, usually in a heterogeneous/focal pattern
• Weak cytoplasmic staining is nonspecific