Pernicious Anemia Presenting as a Mimicker of Thrombotic Thrombocytopenic Purpura.

A 52-year-old woman with no significant past medical history presented to the emergency room (ER) with nonspecific systemic symptoms, including fatigue, dyspnea on exertion, easy bruising, and palpitations. She was found to have significant pancytopenia. Hemolytic anemia, thrombocytopenia, and elevated PLASMIC score (6, High risk; PLASMIC = Platelet count; combined hemoLysis variable; absence of Active cancer; absence of Stem-cell or solid-organ transplant; MCV; INR; Creatinine) score at the time of presentation led to a concern for thrombotic thrombocytopenic purpura (TTP).