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November 1996

Choroidal Hematopoiesis in an Adult

Author Affiliations

Green Bay, Wis; San Diego, Calif

Arch Ophthalmol. 1996;114(11):1421-1422. doi:10.1001/archopht.1996.01100140621022

Extramedullaryhematopoiesis (EMH) localized to the choroid occurs in about 15% of premature and full-term newborn infants.1 It is presumed that the choroid is one of several sites of fetal hematopoiesis that cease forming blood in the perinatal period. In adults with hematologic disorders, EMH is occasionally seen in the spleen, liver, lymph nodes, or paravertebral area. We treated a case of EMH remarkable for its unusual choroidal location and for its occurrence in a previously healthy adult man.

Report of a Case.  A 29-year-old man suffered multiple injuries in a motor vehicle accident, resulting in a ruptured globe, and leading to enucleation of the right eye 16 days after the accident. He had no other remarkable medical history. Except for evidence of trauma, the results of a physical examination were normal. A preoperative complete blood cell count showed normocytic anemia (hematocrit, 0.31) and a mild increase in the leukocyte

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