To report a case of an 82-year-old male with acute myeloid leukemia presenting with bilateral isolated conjunctival and eyelid masses.

An 82-year-old male presented with a bilateral conjunctival mass and right eyelid mass occurring 10 days prior. He was diagnosed with prostate cancer 8 years ago and complete recovery was achieved using selective mass chemotherapy. He experienced a stroke 4 years ago and was treated using a carotid artery stent insertion and medication. In the initial laboratory test, hemoglobin was 13.7 g/dL and leukocyte count 5,530/mm³ (neutrophil 74.4%, lymphocyte 10%, monocyte 11.8%). Light reflex, movement of extraocular muscle and fundus examination were all normal. Biopsy was performed 1 week after the first visit. Seven days after biopsy, he complained of sudden dyspnea and febrile sense and was admitted to the intensive care unit via the emergency room (ER). The laboratory tests performed in the ER showed hemoglobin was 9.6 g/dL and leukocyte count was 78,020/mm³ (neutrophil 0%, lymphocyte 7%, monocyte 5%, promyelocyte 1%, metamyelocyte 4%, myelocyte 6%, blast 67%). The biopsy revealed diffuse proliferation of atypical plasmacytoid cells, consistent with leukemic infiltration. Under the diagnosis of acute myeloid leukemia, chemotherapy was administered. However, the patient died due to aggravated pneumonia.

Even if non-specific findings appear on the peripheral blood tests, eyelid and conjunctival masses should be considered as possible tumors in acute myeloid leukemia.