Primary Malignant Melanoma of the Rectum: Report of Two Cases

<table>Case  2 pathological imaging. (a) Macroscopic image of the rectal tumor showing some pigmented lesions. (b) Rectal specimen is positive for the expression of HMB-45 (×20).</table>

Case Reports in Surgery

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Figure 2

Figure 2: Primary Malignant Melanoma of the Rectum: Report of Two Cases 