What are the symptoms of Hemophagocytic lymphohistiocytosis ?
What are the signs and symptoms of Hemophagocytic lymphohistiocytosis? The signs and symptoms of hemophagocytic lymphohistiocytosis typically develop during the first months or years of life. However, in rare cases, affected people may not show symptoms until later in childhood or even into adulthood. The features of this condition may include: Fever Enlarged liver and/or spleen Skin rash Lymph node enlargement Breathing problems Easy bruising and/or abnormal bleeding Kidney abnormalities Heart problems Increased risk for certain cancers (leukemia, lymphoma) Many people with this condition also develop neurologic abnormalities. The neurological symptoms vary but may include irritability, fatigue, abnormal muscle tone, seizures, neck stiffness, mental status changes, ataxia, blindness, paralysis, and/or coma. The Human Phenotype Ontology provides the following list of signs and symptoms for Hemophagocytic lymphohistiocytosis. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Reduced natural killer cell activity 13/13 Granulocytopenia 11/14 Neutropenia 5/7 Abnormal natural killer cell physiology - Anemia - Ataxia - Autosomal recessive inheritance - Coma - CSF pleocytosis - Encephalitis - Episodic fever - Failure to thrive - Fever - Generalized edema - Hemiplegia - Hemophagocytosis - Hepatomegaly - Hepatosplenomegaly - Hyperbetalipoproteinemia - Hypertonia - Hypertriglyceridemia - Hypoalbuminemia - Hypoalphalipoproteinemia - Hypofibrinogenemia - Hyponatremia - Hypoproteinemia - Increased circulating very-low-density lipoprotein cholesterol - Increased CSF protein - Increased intracranial pressure - Increased serum ferritin - Increased total bilirubin - Irritability - Jaundice - Leukopenia - Lymphadenopathy - Meningitis - Muscular hypotonia - Prolonged partial thromboplastin time - Prolonged prothrombin time - Seizures - Splenomegaly - Tetraplegia - Thrombocytopenia - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.