A case of myxoid adrenocortical neoplasm: computed tomography and magnetic resonance imaging characteristics.

[adrenal incidentaloma]

Myxoid adrenocortical neoplasms are rare ; to our knowledge , only 56 cases have been reported in the literature . Therefore , distinguishing benign from malignant cases is challenging . Although the histopathological features of myxoid adrenocortical neoplasia have been amply demonstrated , their imaging characteristics are yet to be reported . We describe here these characteristics for such a neoplasm . Our patient , a 70 -year -old male , was found to have a 3 -cm left adrenal incidentaloma through a non-enhanced computed tomography . Attenuation measurements were 22 Hounsfield units on precontrast imagery , and percentage enhancement washout was 92 %. Magnetic resonance imaging showed no loss of signal intensity in T 1 -weighted out-of-phase images , but high signal intensity on T 2 -weighted and diffusion-weighted images . Left adrenalectomy was performed and the pathological diagnosis was confirmed as myxoid adrenocortical neoplasm . The imaging characteristics reported here will be beneficial to the differential diagnosis of myxoid adrenocortical neoplasms based upon image analysis and will help distinguish benign from malignant neoplasms .

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Diseases presenting "loss of signal intensity in t1" symptom

adrenal incidentaloma

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