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Table 2 Histological features of SPN in patients under 20 years of age (n = 29)

From: Clinicopathological and immunohistochemical study of 29 cases of solid-pseudopapillary neoplasms of the pancreas in patients under 20 years of age along with detailed review of literature

Histological features Resection specimens
(n = 20)
Incision biopsies (n = 9)
Number of cases present Percentage (%) Number of cases present Percentage (%)
Pseudopapillary architecture 20 100% 9 100%
Solid areas 20 100% 9 100%
Eosinophilic cytoplasm 16 80% 7 77.7%
Myxoid stroma 16 80% 7 77.7%
Hemorrhage 15 75% 7 77.7%
Infarction 14 70% 6 66.7%
Fibrosis 14 70% 6 66.7%
Foamy/ hemosiderin laden macrophages 12 60% 5 55.5%
Clear cells 9 45% 4 44.4%
Hyaline globules 6 30% 3 33.3%
Necrosis 8 40% 4 44.4%
Cholesterol clefts 7 35% 3 33.3%
Cystic degeneration 2 10% 1 11.1%
Microcystic change 5 25% 2 22.2%
Nuclear grooves 5 25% 2 22.2%
Mitotic activity 5 25% 3 33.3%
Atypical cells 3 15% 2 22.2%
Giant cells 4 20% 2 22.2%
Calcification 3 15% 1 11.1%