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Surgical Case Reports
Fig. 2 | Surgical Case Reports

Fig. 2

From: A case of laparoscopic partial hepatic S7 resection for postoperative liver metastasis of rectal malignant melanoma

Fig. 2

Macroscopic findings, histopathological findings, and immunostaining findings of ARMM. a, b Pathological specimens revealed a semi-pedunculated tumor 30 mm in size in the anal canal and peripheral discontinuous melanin depositions. c Histopathological findings demonstrated diffuse proliferation of atypical cells with prominent nuclei of varying size accompanied by melanin depositions. d Positive for HMB-45. e Positive for S-100. f Positive for SOX-10

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