case_images: PMC3364052_01
case_images: Large ano-rectal ulcer on exam under anesthesia.
case_images: CRIM2012-537278.001.jpg
case_images: PMC3364052_01_CRIM2012-537278.001.jpg
case_images: fig1
case_images: She was taken to the operating room and examination demonstrated a large deep anal canal ulcer in the left posterior-lateral position (Figure 1).
case_images: Rectal biopsy showing mucosal and submucosal atypical hematopoietic cell infiltration.
case_images: CRIM2012-537278.002.jpg
case_images: PMC3364052_01_CRIM2012-537278.002.jpg
case_images: fig2
case_images: Refer to Figures 2, 4, 5 and 6.
case_images: Anal ulcer biopsy showing atypical mucosal and submucosal hematopoietic cell infiltration.
case_images: CRIM2012-537278.003.jpg
case_images: PMC3364052_01_CRIM2012-537278.003.jpg
case_images: fig3
case_images: Biopsies were taken from the anal ulcer and rectosigmoid mucosa (Figure 3).
case_images: Rectal ulcer biopsy under high magnification shows atypical large and medium hematopoietic cells with large irregular nuclei and pale cytoplasm. Scattered small lymphocytes and plasma cells also seen.
case_images: CRIM2012-537278.004.jpg
case_images: PMC3364052_01_CRIM2012-537278.004.jpg
case_images: fig4
case_images: Refer to Figures 2, 4, 5 and 6.
case_images: Immunohistochemical marker staining.
case_images: CRIM2012-537278.005.jpg
case_images: PMC3364052_01_CRIM2012-537278.005.jpg
case_images: fig5
case_images: Refer to Figures 2, 4, 5 and 6.
case_images: Bone marrow biopsy showing hypercellularity and atypical cells.
case_images: CRIM2012-537278.006.jpg
case_images: PMC3364052_01_CRIM2012-537278.006.jpg
case_images: fig6
case_images: Refer to Figures 2, 4, 5 and 6.