B. Kazi, Abhishek Maurya, Anupam Chakrapani, Imaan Rumani
{"title":"继发于肺炎支原体的冷凝集素综合征","authors":"B. Kazi, Abhishek Maurya, Anupam Chakrapani, Imaan Rumani","doi":"10.25259/jhas_42_2023","DOIUrl":null,"url":null,"abstract":"A 47-year-old female presented with dyspnea, dry cough, and fatigue for ten days. On examination, she had severe pallor and bilateral crepts in the lungs. Complete blood count (CBC) showed a hemoglobin of 7.3 g/dL, reticulocyte count of 5.6%, and chest X-ray was normal. Her extended Direct Coombs test (DCT) showed C3d +3 and cold agglutinin titer of 1:256 at 4°C. A comprehensive respiratory panel showed positivity for Mycoplasma pneumonia. Thus, a diagnosis of cold agglutinin syndrome secondary to M. pneumonia was made, and she was started on injection doxycycline 100 mg IV twice a day, following which her symptoms and anemia improved without transfusion support.","PeriodicalId":499735,"journal":{"name":"Journal of Hematology and Allied Sciences","volume":"44 10","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Cold agglutinin syndrome secondary to Mycoplasma pneumoniae\",\"authors\":\"B. Kazi, Abhishek Maurya, Anupam Chakrapani, Imaan Rumani\",\"doi\":\"10.25259/jhas_42_2023\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A 47-year-old female presented with dyspnea, dry cough, and fatigue for ten days. On examination, she had severe pallor and bilateral crepts in the lungs. Complete blood count (CBC) showed a hemoglobin of 7.3 g/dL, reticulocyte count of 5.6%, and chest X-ray was normal. Her extended Direct Coombs test (DCT) showed C3d +3 and cold agglutinin titer of 1:256 at 4°C. A comprehensive respiratory panel showed positivity for Mycoplasma pneumonia. Thus, a diagnosis of cold agglutinin syndrome secondary to M. pneumonia was made, and she was started on injection doxycycline 100 mg IV twice a day, following which her symptoms and anemia improved without transfusion support.\",\"PeriodicalId\":499735,\"journal\":{\"name\":\"Journal of Hematology and Allied Sciences\",\"volume\":\"44 10\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-04-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Hematology and Allied Sciences\",\"FirstCategoryId\":\"0\",\"ListUrlMain\":\"https://doi.org/10.25259/jhas_42_2023\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Hematology and Allied Sciences","FirstCategoryId":"0","ListUrlMain":"https://doi.org/10.25259/jhas_42_2023","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Cold agglutinin syndrome secondary to Mycoplasma pneumoniae
A 47-year-old female presented with dyspnea, dry cough, and fatigue for ten days. On examination, she had severe pallor and bilateral crepts in the lungs. Complete blood count (CBC) showed a hemoglobin of 7.3 g/dL, reticulocyte count of 5.6%, and chest X-ray was normal. Her extended Direct Coombs test (DCT) showed C3d +3 and cold agglutinin titer of 1:256 at 4°C. A comprehensive respiratory panel showed positivity for Mycoplasma pneumonia. Thus, a diagnosis of cold agglutinin syndrome secondary to M. pneumonia was made, and she was started on injection doxycycline 100 mg IV twice a day, following which her symptoms and anemia improved without transfusion support.