Obtaining and Storing Standard of Care Wound Biopsies for Immediate or Future Wound-Related Scientific Study

The criteria for considering a wound biopsy in a given patient are a chronic wound (venous
leg ulcer, diabetic foot ulcer, decubitus ulcer) that has been present for over two (2)
months and has failed to progress towards healing (less than 20% decrease in size over 2-week
period of time). Also any suspicious wound in which cancer is strongly considered on a
clinical basis should be biopsied immediately without any arbitrary timeline being imposed.

Inclusion Criteria:

- The subject must have a wound, which requires a biopsy for at least one of the
following reasons:

- The wound is clinically suspicious (raised fibrotic edges, patchy discoloration
of the edges, "invasive appearance", or an appearance substantially different
from normal chronic wound appearance).

- The wound has been present for over 3 months that has been under standard of care
management for at least 1 month and shows no progression towards healing. No
progression towards healing is defined as less than 20% reduction in the size of
the wound over a 2-week period of time.

- The subject must be at least 18 years of age.

- The ulcer to be biopsied must be greater than 3 centimeters in area.

Exclusion Criteria:

- Unacceptable risk of bleeding as determined by the investigator.

- Medical or emotional risk associated with the potential biopsy that outweighs the risk
of not taking a biopsy as determined by the investigator.

- Note: Vulnerable populations will not be excluded from the study as they are over
represented in the chronic wound population, but care will be taken to explain
the study to family members and caretakers and other stakeholders in the
subject's care, so that concerned parties are in agreement as to the subject's
enrollment in the study.