PMC4337351_01
PMC4337351_02
The biopsy specimen of case 1: Proliferation composed of trabecular structure. Cylindromatous structures were present. The cribriform pattern was barely seen (Hematoxylin and eosin (HE) x 100)
PAMJ-19-99-g001.jpg
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F0001
The hyaline stroma forming cyst like spaces within cell nests revealed a classic cylindromatous structures (Figure 1, Figure 2).
ACC: combining tubular and solid features (case 2) (HE x 100)
PAMJ-19-99-g002.jpg
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F0002
The hyaline stroma forming cyst like spaces within cell nests revealed a classic cylindromatous structures (Figure 1, Figure 2).
ACC: The tumor cells were small, basaloid, uniform, composed of dense basophilic nuclei with inconspicuous nucleoli (case 1,2) (HEx 200)
PAMJ-19-99-g003.jpg
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F0003
Mitotic figures were rarely found (Figure 3, Figure 4).
ACC: The tumor cells were small, basaloid, uniform, composed of dense basophilic nuclei with inconspicuous nucleoli (case 2) (HE x 200)
PAMJ-19-99-g004.jpg
PMC4337351_02_PAMJ-19-99-g004.jpg
F0004
Mitotic figures were rarely found (Figure 3, Figure 4).