Histological Analysis of AlloMend® Acellular Dermal Matrix Used in Breast Implant Surgeries

Inclusion Criteria: * ≥18 years of age; * AlloMend® Acellular Dermal Matrix used during the initial prepectoral placement of tissue expanders for breast reconstruction; * Is scheduled or will be scheduled for a procedure to exchange the tissue expander for permanent breast implant; * Can understand the requirements of the study, has provided written, informed consent, and to comply with the study protocol. Exclusion Criteria: * Mentally compromised (e.g., being currently treated for a psychiatric disorder, senile dementia, Alzheimer's disease) in a manner that would compromise his or her ability to consent to participate in the clinical study; * Subjects who, in the opinion of the investigator, would not be able or willing to comply with the protocol.