Apparatus and associated methods for reducing fluid in biopsy tissue handling system for improving imaging quality

A tissue holder assembly includes: a base comprising a bottom member, a central hub extending upwardly from the bottom member, and a circumferential sidewall extending upwardly from the bottom member radially spaced apart from the hub, the circumferential sidewall surrounding the hub and defining an interior region configured for accommodating a cylindrical tissue holder; the base further comprising a raised platform spaced upwardly apart from the bottom member, the central hub extending through a central opening of the platform and configured for supporting the tissue holder; the bottom member, the hub, and the circumferential sidewall collectively defining an annular fluid channel underlying the platform; wherein the fluid channel extends around the hub from an opening in the platform to a fluid exit port in the circumferential sidewall; the base further comprising a flow comb underlying the platform opening and extending into the fluid channel.