title: Macular hemorrhages associated with neonatal polycythemia and thrombocytopenia: A case report.
abstract: BACKGROUND
  Thrombocytopenia occurs in 51% of neonates with polycythemia and is independently associated with growth restriction. Increased hematocrit is associated with decreased platelet count. The possibility of a hemorrhage should be noted.
  
  
  METHODS
  A Chinese male newborn presented with elevated hemoglobin and hematocrit levels. The platelet count decreased to 10×109/L during the 1st week after birth and remained abnormal at day 12. Vitreous turbidity of the right eye was detected 2 days later and was suspected of stemming from endophthalmitis or ocular inflammation. Two weeks later, vitreous turbidity decreased and a macular hemorrhage became visible. Optical coherence tomography confirmed the diagnosis of a retinal hemorrhage.
  
  
  CONCLUSIONS
  Thrombocytopenia associated with polycythemia can induce a vitreous hemorrhage, which may be confused with ocular infection or inflammation.
authors.affiliation: First Hospital of Jilin University, 130021 Changchun, Jilin, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Cui
authors.affiliation: First Hospital of Jilin University, 130021 Changchun, Jilin, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: First Hospital of Jilin University, 130021 Changchun, Jilin, China.
authors.forename: L
authors.initials: L
authors.lastname: Liang
authors.affiliation: People's Hospital of Changchun City, 728, Nanjing Street, 130000 Changchun, Jilin, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Li
authors.affiliation: First Hospital of Jilin University, 130021 Changchun, Jilin, China. Electronic address: haohao760203@sina.com.
authors.forename: Q
authors.initials: Q
authors.lastname: Hao
mesh_terms: D001780:Blood Coagulation Tests; D003937:Diagnosis, Differential; D004906:Erythrocyte Count; D006400:Hematocrit; D006452:Hemoglobinometry; D006801:Humans; D007231:Infant, Newborn; D020300:Intracranial Hemorrhages / Q000097:blood / Q000175:diagnosis / Q000209:etiology; D008266:Macula Lutea; D008297:Male; D010976:Platelet Count; D011086:Polycythemia / Q000097:blood / Q000175:diagnosis / Q000209:etiology*; D012016:Reference Values; D012166:Retinal Hemorrhage / Q000097:blood / Q000175:diagnosis / Q000209:etiology*; D013921:Thrombocytopenia / Q000097:blood / Q000175:diagnosis / Q000209:etiology*; D041623:Tomography, Optical Coherence; D014823:Vitreous Hemorrhage / Q000097:blood / Q000175:diagnosis / Q000209:etiology