933 Possible Causes for Lymphocytosis

  • Pharyngitis

    Lymphocytosis, along with greater than 10% atypical lymphocytes and mild thrombocytopenia, can be found in mononucleosis.[infectiousdiseaseadvisor.com] However, infectious mononucleosis is more common in persons 10 to 30 years of age and is associated with fatigue, posterior cervical adenopathy, and atypical lymphocytosis[aafp.org] PTx, formerly known as lymphocytosis -promoting factor, causes a decrease in the entry of lymphocytes into lymph nodes.[boundless.com]

  • Infectious Mononucleosis

    Characterized by the classic triad of fever, pharyngitis, and lymphadenopathy, along with atypical lymphocytosis. Often subclinical in young children.[us.bestpractice.bmj.com] Diagnosis is usually through serum labwork which would show lymphocytosis and a positive heterophile antibody test.[radiopaedia.org] The classic hematologic criteria, an absolute ( 50%) and atypical ( 10%) lymphocytosis, may be used when a monospot is not available.[pedclerk.bsd.uchicago.edu]

  • Adrenal Insufficiency

    Laboratory findings: CBC: normochromic, normocytic anemia, relative lymphocytosis with increased eosinophil count Acid-base: Mild metabolic acidosis Renal function: Prerenal[openanesthesia.org] Laboratory Findings and Management In cases of adrenal insufficiency, the complete blood count usually reveals anemia, neutropenia, eosinophilia, and relative lymphocytosis[news-medical.net] FBC - there may be anaemia, mild eosinophilia and lymphocytosis. Glucose - often low in children. LFTs - may be raised liver transaminases.[patient.info]

  • Tuberculosis

    CNS Tuberculosis: A meningeal pattern of spread can occur, and the cerebrospinal fluid typically shows a high protein, low glucose, and lymphocytosis.[library.med.utah.edu]

  • Viral Lower Respiratory Infection

    CDC BLOOD LYMPHOCYTOSIS IN A PATIENT WITH PERTUSSIS.[microbiologybook.org] Lymphocytosis is characteristic of this disorder and the lymphocyte morphology is often atypical. The cytology of the cells could be mistaken for neoplastic lymphocytes.[microbiologybook.org]

  • Drug-induced Fever

    Eosinophilia and atypical lymphocytosis are common, occurring in up to 30% of cases. 2 Allopurinol, anticonvulsants (particularly carbamazepine, phenobarbitone and phenytoin[medsafe.govt.nz] The hematologic abnormalities of DHS generally consist of eosinophilia, atypical lymphocytosis, lymphopenia and thrombocytopenia ( 16 ).[jpediatricsreview.com] Testing for acute CMV, acute EBV, or acute HSV infection should be undertaken if classical viral hepatitis has been excluded or clinical features such as atypical lymphocytosis[gi.org]

  • Follicular Lymphoma

    Marrow involvement common (85% have paratrabecular lymphoid aggregates); with marrow involvement, 40% have tumor cells in blood, which may resemble CLL 10% have peripheral lymphocytosis[pathologyoutlines.com] These may be memory B cells, circulating after initial stimulation In rare cases, can see pronounced peripheral blood B lymphocytosis (often secondary to infection), with[en.wikibooks.org]

  • Pertussis

    A lymphocytosis promoting factor probably plays an important role. Endotoxin does not seem to contribute to the pathogenesis.[symptoma.com] […] in the world Clinical Paroxysmal cough, post-tussive emesis, cyanosis, apnea, whoop Complications Pneumonia, atelectasis Diagnosis Culture, direct fluorescent antibody, lymphocytosis[medical-dictionary.thefreedictionary.com] Blood reports will show lymphocytosis due to elaboration of lymphocyte promoting factor which is a characteristic of B. petussis.[symptoma.com]

  • Extrinsic Allergic Alveolitis

    Confirmation of inciting antigen by history, investigation of environment, serum precipitin test, or BAL antibody X-ray or HRCT of chest showing changes consistent with HP BAL lymphocytosis[arupconsult.com] Comments: Intra-alveolar fibrin deposition is suggestive for acute HP, also for acute fibrinous and organizing pneumonia Typical bronchoalveolar lavage of HP shows lymphocytosis[pathologyoutlines.com] Diagnosis is usually based on occupational history and evidence of fibrosis on imaging, bronchoalveolar lavage with lymphocytosis , positive inhalation challenge testing,[amboss.com]

  • Mumps

    Blood tests demonstrate a relative lymphocytosis is seen in case of mumps infection.[symptoma.com]

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