Thrombocytopenia, anasarca, fever, reticulin fibrosis/renal failure, and organomegaly
comprise TAFRO syndrome, which was proposed as a distinct clinical entity from iMCD
without TAFRO syndrome (iMCD-NOS) due to its aggressive clinical course, refractoriness to
corticosteroids, presence of thrombocytopenia, increased level of alkaline phosphatase,
and normal level of gammaglobulin. However, diagnosing TAFRO syndrome in its early stages
is challenging because it is rare and its diagnostic criteria are complicated. We describe
a patient with TAFRO syndrome and adrenal hemorrhage who demonstrated a rapid decline in
her clinical condition and did not respond to steroid pulse therapy, resulting in a fatal
outcome. In the early stage of her clinical course, she developed unilateral adrenal
hemorrhage with mild thrombocytopenia and normal clotting times, suggesting adrenal
hemorrhage as a unique manifestation of TAFRO syndrome. In general, patients with TAFRO
syndrome exhibit a more aggressive clinical course and poorer outcome than those with
iMCD-NOS. To ameliorate this poor prognosis, it is important to diagnose the disease early
and immediately start powerful immunosuppressive agents such as tocilizumab. Based on this
case, adrenal hemorrhage may suggest TAFRO syndrome, and facilitate the rapid diagnosis of
this complicated and rare disease.