A Rare Case of Congenital Methemoglobinemia with secondary polycythemia- Case Report and Literature Review

Haematology Journal of Bangladesh

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Field Value
 
Title A Rare Case of Congenital Methemoglobinemia with secondary polycythemia- Case Report and Literature Review
 
Creator Ara, Tasneem
Haque, Qazi Smita
Afrose, Salma
 
Subject Secondary Polycythemia
Congenital Methemoglobinemia
 
Description Congenital heart diseases are common cause of congenital cyanosis with polycythaemia. Congenital methemoglobinemia is a rare cause of lifelong cyanosis with polycythemia. Congenital methemoglobinemia is caused either by enzyme deficiency or by an abnormal Hb (Hb M). Asymptomatic despite presence of severe cyanosis indicates this rare disorder. We are reporting a rare case of polycythemia with cyanosis due to congenital methemoglobinemia. The patient was referred to our centre and attended Hematology OPD (out-patient department) when his routine CBC revealed erythrocytosis. At that time, we found him severely cyanosed especially apparent on lips, tongue, hands and feet. He was diagnosed as a case of congenital methemoglobinemia with 38% blood methemoglobin level (normal value-0.00-2.00%). On view of life long persistent cyanosis, without any cardiopulmonary and neurological abnormality, consanguinity of parent’s marriage, dark colored blood with high methemoglobin level, a final diagnosis of Type I enzyme deficiency congenital methemoglobinemia was made. He was treated with oral ascorbic acid 250 mg twice daily. At follow up after 6 months his skin color improved and RBC count returned to normal. We are reporting this case of congenital methemoglobinemia for the first time in Bangladesh to emphasize the importance of this rare entity in the differential diagnosis of asymptomatic cyanosis with polycythemia.
 
Publisher Haematology Society of Bangladesh
 
Date 2020-05-24
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format text/html
application/pdf
 
Identifier https://journal.hematologybd.org/index.php/haematoljbd/article/view/30
10.37545/haematoljbd201930
 
Source Haematology Journal of Bangladesh; Vol. 3 No. 01 (2019); 20-23
2707-1405
2523-1219
 
Language eng
 
Relation https://journal.hematologybd.org/index.php/haematoljbd/article/view/30/145
https://journal.hematologybd.org/index.php/haematoljbd/article/view/30/144
 
Rights Copyright (c) 2019 Tasneem Ara, Qazi Smita Haque, Salma Afrose
https://creativecommons.org/licenses/by-nc/4.0
 

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