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Table 5 Average size of tumor present in tissue blocks. The average size of tumor present on the blocks for common tumor types retrieved and reported from a pool of 400 cases from all SPIN centers. Common Tumors

From: Availability and quality of paraffin blocks identified in pathology archives: A multi-institutional study by the Shared Pathology Informatics Network (SPIN)

Tumor Size

Largest block containing tumor (cm)

2nd largest block with tumor (cm)

3rd largest block with tumor (cm)

n

293

258

211

AVERAGE

1.487

1.232

1.038

MAX

2.5

2.5

2.5

MIN

0.1

0.1

0.1

STDEV

0.753

0.765

0.756