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Multimodality Imaging Findings in Waterhouse-Friderichsen Syndrome: A Case Report and a Short Literature Review

Waterhouse-Friderichsen syndrome is a rare disease characterized by bleeding into the adrenal glands, and its symptoms may vary from non-specific abdominal pain to multi-organ failure. Commonly related to a variety of infectious diseases among which sepsis from Neisseria meningitidis is the most frequent, many other etiologies have been described, and in some rare cases, even no apparent cause can be identified. We report a rare case of an idiopathic bilateral adrenal hemorrhage in a 70-year-old male who presented to our emergency department with non-specific abdominal pain. Ultrasonography Scan (US) and Computed Tomography (CT) findings were crucial for making an early diagnosis, which resulted in a short hospitalization time and, eventually, a complete recovery of the adrenal function. After discharge, Magnetic Resonance Imaging (MRI) was also performed, providing a more complete ensemble of multimodality imaging findings that can be associated with this rare syndrome.