[Primary tuberculous abscess and pyogenic psoas abscess: an uncommon association]. / Abcès primaire tuberculeux et à pyogène du psoas: une association exceptionnelle.

Psoas abscesses account for 5-10% of abdominal suppurations. They can be primary or secondary. Primary polymicrobic abscesses of the psoas muscle including, in particular, tuberculous abscesses and pyogenic abscesses, have never been reported in the literature. We report the case of a 35-year old patient, with no particular past medical history, admitted with pain in the right lumbar fossa associated with a fever of 40°C. Onset of symptoms had occurred 5 months before, but without fever. Abdominal CT scan showed an abscess of the right external transverse and oblique psoas muscles extended to the retroperitoneum and infiltrating the thoracoabdominal wall. Cytobacteriological examination of pus showed fast-growth monomorphic wild-type Escherichia coli strains. Systematically performed Real-time PCR test for the detection of Complex Mycobaterium tuberculosis was positive while direct examination after Ziehl-nelseen staining was negative. The culture on a solid Lowenstein Jensen medium was positive after one-month of incubation. The outcome of our patient was favorable under antibacillar quadritherapy and ceftriaxone. This study highlights that a tuberculous origin should be systematically suspected in patients living in endemic areas with chronic, recurrent psoas abscess not responding to antibiotics.

[Granulomatous spondylodiscitis: due mainly to tuberculosis but lymphoma cannot be excluded]. / Spondylodiscite granulomateuse: surtout la tuberculose mais ne pas omettre le lymphome.

Lower back pain is due to multiple etiologies that make diagnosis difficult. Primitive spinal lymphoma is rare and its diagnosis often requires ultrasound-guided biopsy. A 30-year old man hospitalized for inflammatory lumbago evolving within the context of an impaired general condition. Phisical examination revealed pain on palpation of the L2-L3 vertebral apophysis without peripheral tumor syndrome. Laboratory tests showed an inflammatory syndrome. Morphological assessment was in favour of a spondylodiscitis. The first biopsy showed granulomatous osteitis.Clinical and radiological worsening during antibacillary treatment led to reconsider the original diagnosis and a second biopsy confirmed the diagnosis of lymphoma. The diagnosis of skeletal tuberculosis in particular spinal tuberculosis requires bacteriological or histological confirmation in order not to overlook a primitive bone lymphoma.

[Peripheral neuropathy during Infliximab therapy: a case study]. / Neuropathie périphérique sous Infliximab: étude d'une observation.

Anti TNF alpha treatments are wide spectrum therapies. Multiple side effects have been reported in recent years, particularly peripheral neuropathies. We report a case of axonal neuropathy occurring three months after starting treatment with Infliximab. Our study focused on a 60-year old female patient treated for therapy-resistant hemorrhagic rectocolitis, requiring treatment with infliximab. Three months later, the patient had sensory axonal neuropathy. Etiologic assessment remained negative and dose reduction was accompanied by an improvement in symptoms. The time between initiation of treatment with Infliximab and the onset of clinical manifestations as well as improvement after dose reduction advocate the responsibility of infliximab in the occurrence of sensory neuropathy. Its management is not standardized and should be discussed case by case.