Figure 4From: Availability and quality of paraffin blocks identified in pathology archives: A multi-institutional study by the Shared Pathology Informatics Network (SPIN) Distribution of retrieved cases for rare tumors. Illustration of number of cases retrieved for rare tumor cases by the original year of accession for that case: (a) Breakdown by each institution and (b) by rare tumor type*. Specimens retrieved and evaluated for the rare tumors encompassed cases accessioned range from 1988–2005 with 62% being greater than 5 years old.Back to article page