Case contributed by Fateme Hosseinabadi
Diagnosis almost certain


Known case of methemoglobinemia.

Patient Data

Age: 15 years
Gender: Female

Bilateral symmetrical increased T1-WI signal intensity in basal ganglia, involving caudate nuclei, putamina, as well as brainstem and periaqueductal gray matter.

No diffusion restriction is seen in the involved regions.

1 yr later MRI for FU


Follow up MRI 1 year later show the same changes.

Case Discussion

Methemoglobinemia is a condition caused by elevated levels of methemoglobin in the blood.

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