[Intranodal palisaded myofibroblastome: A rare cause of inguinal lymphadenopathy]. / Le myofibroblastome palissadique intraganglionnaire : une cause rare d'adénopathie inguinale.

INTRODUCTION: Lymphadenopathies are a major cause of consultation in internal medicine, with various causes of diagnosis. Unexplained persistent lymphadenopathy must be biopsied to rule out malignant tumor. CASE REPORT: We report the case of a 53-year-old man, with inguinal lymphadenopathy evolving for more than one year. The patient had no associated symptoms and his blood tests were unremarkable. Due to the progression of the adenopathy and its hypermetabolism on PET-CT, an excisional biopsy was performed. Histological analysis revealed an intranodal proliferation of spindle cells with a palisading pattern. ß-catenine and smooth muscle actin labelling were positive, leading to the diagnosis of intranodal palisaded myofibroblastoma, a benign tumour. CONCLUSION: Intranodal palisaded myofibroblastoma is a rare benign cause of adenopathy, with often inguinal lymph node localization and slow growth and without risk of recurrence after surgical removal.

[Hospitalization for infection in patients treated for giant cell arteritis: A single-centre retrospective study]. / Hospitalisation pour infection chez les patients suivis pour une artérite à cellules géantes : étude monocentrique rétrospective.

INTRODUCTION: Infections are associated with morbimortality of patients with giant cell arteritis (GCA). The aim of this work was twofold: the identification of factors predisposing to the risk of infection and the description of patients hospitalized with an infection occurring during the treatment period of CAG. METHODS: A monocentric retrospective study was conducted in GCA patients, comparing patients hospitalized for infection with patients without infection. The analysis included 21/144 (14.6%) patients with 26 infections (cases) and 42 control matched on sex, age, and diagnosis of GCA. RESULTS: Both groups were similar except for a higher frequency of seritis in cases (15% vs. 0%, p=0.03). Relapses of GCA were less common in cases (23.8% vs 50.0%, p=0.041). Hypogammaglobulinemia was present during infection. More than half of the infections (53.8%) occurred in the first year of follow-up with an average dose of 15mg/day of corticosteroids. Infections were mainly pulmonary (46.2%) and cutaneous (26.9%). CONCLUSION: Factors associated with infectious risk were identified. This preliminary monocentric work will continue with a national multicentre study.