La Revue de médecine interne
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Tropheryma whipplei culture and genome sequencing have, thanks to new tools, rationalized both diagnosis and treatment of Whipple's disease. Whipple's disease involves mainly Caucasian male, approximately 50-years-old, suffering from arthralgia, weight loss and diarrhea. A worsening of clinical manifestations after immunosuppressive therapy is frequently observed while antibiotics prescribed for another infection improves the clinical status. ⋯ PCR and culture (particularly for cerebrospinal fluid) performed on various tissues and fluids allow the localized infections diagnosis. In classic Whipple's disease, the treatment with doxycycline (200mg/day) and hydroxychloroquine (600 mg/day) for a length of 12 months followed by a lifetime treatment by doxycycline (200 mg/day) should be recommended to avoid reinfection. In localized infections, a treatment with doxycycline (200mg/day) and hydroxychloroquine (600 mg/day) is proposed for 12 to 18 months followed by a lifetime follow-up.
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Hypophysitis is a rare disorder. As clinical manifestations and radiologic signs are non specific, the diagnosis is difficult. Pathogenesis of hypophysitis remains largely unknown but new histological and etiological variants have been recently reported. ⋯ An entity of IgG4 related plasmatic hypophysitis has been described and well-defined diagnostic criteria have been proposed. Monoclonal antibodies directed against the cytotoxic T-lymphocyte antigen-4 (CTLA-4), investigated in metastatic cancer, can induce hypophysitis. Several candidate pituitary auto-antigens have been described in the last decade, although none has proven to be useful as a diagnostic tool.
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Case Reports
[Herpes simplex hepatitis with macrophage activation syndrome in an immunocompetent patient].
Herpes simplex hepatitis is a rare cause of acute hepatitis in immunocompetent patients. The triad of fever, increase in liver enzymes and leucopenia is suggestive of herpes simplex hepatitis. Delayed diagnosis without antiviral therapy contributes significantly to an unfavorable outcome. ⋯ Despite its relatively low occurrence rate, diagnosis of herpetic hepatitis should be discussed in immunocompetent patients with acute liver failure. The benefit of an early acyclovir treatment should lead clinicians to consider this uncommon diagnosis in unexplained cases of hepatitis and to test rapidly HSV DNA levels by PCR in plasma.