rifampin and Lymphohistiocytosis--Hemophagocytic

Brucellosis is a common zoonotic disease worldwide. It has protean clinical manifestation and sometimes may has a life-threatening complication. A 4-year-old boy presented with a history of fever, myalgia and appetite loss for 3 weeks. On examination, he had hepatosplenomegaly. The initial working diagnosis was an infection, autoimmune disease and malignancy. Investigations showed positive

Topics: Animals; Brucellosis; Child; Child, Preschool; Doxycycline; Humans; Lymphohistiocytosis, Hemophagocytic; Male; Rifampin; Zoonoses

Mycobacterium bovis could infect patients with immunodeficiency or immunosuppressive conditions via Bacillus Calmette-Guérin (BCG) vaccination. Tuberculosis-related hemophagocytic syndrome (HPS) is reported, but not HPS caused by Mycobacterium bovis in children.. A boy with X-SCID was diagnosed with M. bovis-associated HPS, emphasizing that X-SCID should be considered when M. bovis is detected in a male infant with low lymphocyte counts.

Topics: Antibiotics, Antitubercular; High-Throughput Nucleotide Sequencing; Humans; Infant; Interleukin Receptor Common gamma Subunit; Isoniazid; Lymphohistiocytosis, Hemophagocytic; Male; Mutation; Mycobacterium bovis; Mycobacterium tuberculosis; Patient Discharge; Polymerase Chain Reaction; Pyrazinamide; Rifampin; Treatment Outcome; Tuberculosis; X-Linked Combined Immunodeficiency Diseases

Hemophagocyticlymphohistocytosis (HLH) is a proliferation of histiocytes with importanthemophagocytosisoccurring in different organs such as the spleen and the bone marrow. HLH is now increasingly diagnosed in the context of infections, malignancies and connective tissue diseases. Although brucellosis is an endemic infection in Tunisia, its association with HLH is a very rare condition which should be considered in patients with splenomegaly and cytopenia. Here, we describe brucellosis associated HLH in a 31 year-old man. The patient was admitted to our hospital with fever, sweating, and fatigue. Physical and laboratory findings revealed splenomegaly, pancytopenia, elevated serum transaminases, triglycerides, lactate dehydrogenase, and ferritin, and bone marrow hemophagocytosis. The Brucella agglutination test was positive. The patient improved after treatment with Rifampin and doxycyclin.

Topics: Adult; Anti-Bacterial Agents; Brucellosis; Doxycycline; Humans; Lymphohistiocytosis, Hemophagocytic; Male; Remission Induction; Rifampin; Treatment Outcome

Hemophagocytic lymphohistiocytosis (HLH) is a rare syndrome of excessive inflammation and tissue destruction due to abnormal immune activation and inflammation. HLH can occur primarily due to genetic etiology, or secondarily associated with malignancies, autoimmmune diseases or infections. There are a number of reports that revealed the relationship of hemophagocytosis with brucellosis. In this report, we described a brucellosis-related HLH case. A 73-year-old male who work as farmer was admitted to our hospital with the complaints of fever continuing for 10 days, loss of appetite and back pain. Physical examination revealed right upper quadrant tenderness and hepatomegaly. Since the patient exhibited five of the diagnostic criteria for HLH (fever, hepatosplenomegaly, bicytopenia, hypertriglyceridemia and high ferritin level), he was diagnosed as secondary HLH. PCR, microscopic agglutination and indirect fluorescent antibody tests gave negative results for the diagnosis of Crimean-Congo hemorrhagic fever, leptospirosis and Q fever, respectively. On the other hand, Rose Bengal test for brucellosis was positive, while standard tube agglutination test (STA) was negative. The patient's serum yielded a very high positive (1/1280) result when Coombs' test was performed in terms of the possibility of blocking antibodies or prozone phenomenon. Additionally, B.melitensis was isolated from his blood culture on the sixth day. The patient was treated with doxycycline and rifampicin, and on the 10th day of antibiotic therapy the patient was discharged and recommended to complete his treatment up to 6 weeks. In conclusion, in patients with secondary HLH symptoms especially in the endemic areas, brucellosis should be considered as a predisposing infection.

Topics: Aged; Agricultural Workers' Diseases; Anti-Bacterial Agents; Bacteremia; Brucella melitensis; Brucellosis; Causality; Coombs Test; Doxycycline; Humans; Lymphohistiocytosis, Hemophagocytic; Male; Rifampin

Hemophagocytic syndrome (HS) may be primary, or secondary, to malignancy, or to metabolic, collagen vascular, and infectious diseases such as brucellosis, miliary tuberculosis and some viral and fungal infections. The diagnostic findings of HS are high fever, hepatosplenomegaly, cytopenia, high serum ferritin and triglycerides, and low serum fibrinogen levels. Brucellosis is a zoonotic disease, with fever, fatigue, sweating, arthritis, hepatosplenomegaly, lymphadenopathy, and cytopenia being the most common symptoms and findings. Hematological manifestations of the disease may include anemia, leucopenia, leukocytosis, thrombocytopenia, and thrombocytosis. Brucellosis may occur in association with HS. Here, we describe brucellosis associated HS in an 8 year-old male patient. The patient was admitted to our clinic with weight loss, arthralgia, prolonged fever, sweating, and fatigue. Physical and laboratory findings revealed hepatosplenomegaly, pancytopenia, elevated serum transaminases, triglycerides, lactate dehydrogenase, and ferritin, and with erythrocytes, leukocytes, and thrombocytes phagocytosed by macrophages indicating hemophagocytosis. The Brucella agglutination test was positive. The patient improved after treatment with Rifampin (15 mg/kg/day) and trimethoprim-sulfamethoxazole (10 mg/kg/day).

Topics: Agglutination Tests; Anti-Bacterial Agents; Bacteriological Techniques; Bone Marrow; Brucella; Brucellosis; Child; Humans; Lymphohistiocytosis, Hemophagocytic; Male; Rifampin; Trimethoprim, Sulfamethoxazole Drug Combination