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Biomedical subjects

B Granel

Publications and source records attributed to B Granel.

107 records · Page 6Linked to original sources

Excessive concern with physical appearance leading to a diagnosis of adrenal adenoma.

We report an unusual case of Cushing's syndrome manifested by anxiety over body image in a 26-year-old nurse. Initial presentation was a 'dermatological non-disease'. Clinical signs became increasingly evident during the course of the disease, justifying an adrenal gland evaluation which showed a secreting adrenocortical adenoma. Surgical treatment led to recovery with return to normal appearance and cessation of her aesthetic complaints. Our observation shows that persistent aesthetic complaints may sometimes reveal early hypercorticism.

Adrenocortical Adenoma↗

Catastrophic arterial reactivity during primary antiphospholipid syndrome--a case report.

Arterial reactivity leading to acute thrombosis at the site of a needle stick injury has never been described during antiphospholipid syndrome. The authors report a case characterized by a succession of thrombotic events occurring during or immediately after arterial angiographies or arterial surgery, in which catastrophic arterial reactivity can be strongly suspected. In this particular patient, it can be postulated that damage to the endothelial cells of the vessels injured during manipulation may have precipitated or aggravated the preexisting susceptibility to thrombosis.

Adult↗

[Pseudo-Glanzmann thrombasthenia in the course of autoimmune thrombocytopenic purpura].

INTRODUCTION: Auto-immune thrombocytopenic purpura is associated with platelet anti-glycoprotein antibodies, particularly with anti-GPIIb/IIIa complex. Persistence of these antibodies sometimes leads to acquired auto-immune thrombopathy. EXEGESIS: We report the case of a woman treated by splenectomy for auto-immune thrombocytopenic purpura, who developed 5 years later an ecchymotic syndrome despite normal platelet count. High bleeding time and platelet aggregation defect in vitro were evidenced. Following the initial thrombocytopenia, anti-glycoproteins GPIIb/IIIa with lupus anticoagulant and benign monoclonal gammapathy were noticed. Platelet controls showed that hypoaggregant activity was secondary to the persistence of anti-GPIIb/IIa antibodies. CONCLUSION: This acquired auto-immune thrombopathy simulating Glanzmann's thrombasthenia was secondary to the persistence of platelet anti-glycoproteins GPIIb/IIIa.

Aged↗

[Diagnostic approach to hypereosinophilia].

Blood hypereosinophilia is a common finding in medical practice requiring further investigation. There are a wide range of potential causes including atopic disorder, drug allergy, parasitic infection, certain forms of immune deficiency, inflammatory process, hemopathy, and malignant disease. Diagnosis of persistent hypereosinophilia not associated with parasitic infection is one of the major diagnostic dilemmas in medicine. If through investigation fails to achieve diagnosis, idiopathic hypereosinophilia may be suspected including the possibility of essential hypereosinophilic syndrome or Chusid syndrome. The primary determination for diagnosis of hypereosinophilia involves the presence or absence of parasitic infection. If parasitic infection is ruled out, it is often difficult to distinguish benign, self-limiting forms from severe forms requiring careful surveillance and subsequent treatment. From a pathophysiological standpoint, one may ask if some eosinophilic conditions are not due to deregulation of immunologic mechanisms that normally protect the organism against parasitic infection.

Diagnosis, Differential↗

[Genetic control of hypereosinophilias].

Polynuclear eosinophils play a major role in host defense against infectious diseases and especially helminthiasis. Onset of hypereosinophilia can be attributed to two mechanisms which can occur separately or in combination. The first mechanism involves enhancement of medullary production and differentiation of eosinophils. The second is prolonged life span of eosinophils. Response to eosinophils depends on various cytokines including IL-5, IL-4, IL-3 and GM-CSF. Since it contains the genes coding for these cytokines, the 5q31-q33 region of chromosome 5 is the focus of study on genetic control of human hypereosinophilia. The goal of these studies is to allow screening of subjects predisposed to helminthic infection and to deregulation of immune responses that may lead to atopy and various types systemic inflammatory diseases.

Chromosomes, Human, Pair 5↗

[Occlusion of the central retinal vein after vaccination against viral hepatitis B with recombinant vaccines. 4 cases].

OBJECTIVES: Hepatitis B vaccination has been proven to be effective and well-tolerated. Certain neurological, ocular or systemic complications have, however, been reported to be induced by the vaccine. Clinicians should be aware of exceptional ocular complications. CLINICAL REPORT: Four patients under 50 years of age developed occlusion of the central vein of the retina after vaccination with recombinant hepatitis B vaccine. None of the classical causes of occlusion of the central vein of the retina could be evidenced. DISCUSSION: Several pathophysiological hypotheses have been proposed to explain these ocular manifestations after vaccination: role of immunocomplexes, antigenic cross-reactions, role of immediate hypersensitivity, simulation of a pathogenic lymphocyte repertoire. None of these hypotheses is entirely satisfactory. It is important however to emphasize the need for a complete general evaluation, including an ophthalmological examination in the presence of unexplained ocular manifestations following hepatitis B vaccination.

Adult↗

Severe lower limbs lymphedema following breast carcinoma treatment revealing radiation-induced constrictive pericarditis--a case report.

In patients treated for breast carcinoma, unilateral lymphedema of the upper limb is usual. However, to the authors' knowledge, lower limb lymphedema has never been reported as a complication of breast carcinoma therapy. They report here the first case of a radiation-induced constrictive pericarditis revealed by severe lower limbs lymphedema. A 60-year-old woman was treated for left breast carcinoma with quadrantectomy, axillary lymphadenectomy, and combined radio chemotherapy (60 grays). Three and a half years later she suffered from a diffuse and increasing lower limbs lymphedema, which became huge and disabling. Radiation-induced constrictive pericarditis was evidenced by right cardiac cavities catheterization. A dramatic improvement was rapidly obtained after pericardectomy. Histopathologic analysis of the pericardium did not reveal neoplastic cells. Radiation-induced constrictive pericarditis is usually responsible for lower limbs edema, but lymphedema is exceptional. This case highlights the need to search for a constrictive pericarditis also in the case of lower limbs lymphedema, particularly in a patient treated with mediastinal radiotherapy or combined radio chemotherapy.

Antineoplastic Combined Chemotherapy Protocols↗

[An unusual cause of long-term fever: Behçet disease].

BACKGROUND: Behçet's disease is an uncommon cause of prolonged fever. This misleading presentation is illustrated by a new case where fever occurred after polyvalent vaccination. CASE REPORT: A 39-year-old female patient was seen for prolonged fever after returning from a trip to Africa. She had received polyvalent vaccinations prior to leaving France. At admission fever had persisted for 2 months. The diagnosis of Behçet's disease was finally established on the basis of clinical signs, buccogenital aphtosis and pathergy. Colchicine was partially effective against although low-grade persisted in the evening. DISCUSSION: Clinicians should be aware that Behçet's disease can provoke long-term fever which can sometimes be an inaugural sign. Sensitivity tests may be useful to identify the trigger, for example polyvalent vaccination.

Adult↗

Cryoglobulinemia vasculitis following intravesical instillations of bacillus Calmette-Guerin.

Infections and/or immune-mediated reactions may occur after intravesical instillation of bacillus Calmette-Guérin for the treatment of bladder carcinoma. We report herein a cryoglobulinemia vasculitis occurring after intravesical BCG instillation for a superficial papillary transitional cell bladder carcinoma. The patient, an 80-year-old man, presented peripheral ischemia 10 days after the second course of intravesical BCG instillation. Biological evaluation revealed autoimmune thrombocytopenia, hypergammaglobulinemia, low C3 and C4 complement fraction levels related to mixed cryoglobulinemia and lupus anticoagulant. The patient was treated with heparin and prostacyclins with a good outcome. All of the immune anomalies spontaneously regressed within 3 months. To our knowledge, cryoglobulinemia has only been reported once in the literature and lupus anti-coagulant has never been reported as a complication of intravesical BCG instillation.

Adenocarcinoma↗