Acute pancreatitis as initial presentation of acute myeloid leukemia-M2 subtype: A case report

Figure 1 Chromosomal karyotyping analysis and immunohistochemical examination of the peripheral blood and bone marrow. A: Bone marrow cell morphology revealed increased myeloblasts; B: Further immunohistochemical staining revealed an increase in myeloblasts staining strongly and weakly positively for myeloperoxidase; C: Peripheral blood imaging; D: The patient’s karyotype is 46, XY.

Figure 2 Imaging of infiltration of the pancreas and acute pancreatitis. A: Abdominal computed tomography (CT) showed diffuse edema of the pancreas and peripancreatic effusion splenomegaly (orange arrow) with gallbladder stones (yellow arrow); B: Abdominal contrast-enhanced CT showed uneven density of the pancrea and no clear enhancement in the arterial phase, with hypodense lesions in the pancreas (orange circle).

Figure 3 Bone marrow aspirate and biopsy examination. Still active bone marrow hyperplasia and no myeloblasts indicated that hematological remission was achieved.

Figure 4 Imaging of the healed pancreas. Abdominal computed tomography showed that the abnormal pancreas findings disappeared after the second course of consolidation chemotherapy, and walled-off necrosis of the pancreatic tail (white arrow).