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J Beylot

Publications and source records attributed to J Beylot.

At least 91 records · Page 5Linked to original sources

[Diagnosis of bilateral secondary tumors of the kidney. Contribution of cytology. Apropos of 2 cases].

The authors report bilateral secondary tumors of the kidney in two patients: one previously treated for an epidermoid tumor, the other for an anaplastic bronchial tumor. In both patients, clinical and radiological features were those of a malignant process. Scan-guided percutaneous fine needle aspiration provided the material necessary to make a definitive cytological diagnosis; it was thus possible to assess the malignancy and recognize the histological type of lesions.

Adult↗

Peripheral neuropathy with essential mixed cryoglobulinemia: biopsies from 5 cases.

Essential mixed cryoglobulinemia, which can cause hypersensitivity vasculitis, was observed in five patients with peripheral neuropathy. Three cases presented with multifocal neuropathies and two cases with symmetrical polyneuropathy. One had cryoglobulinemia with IgM monoclonal gammopathy IgG polyclonal gammopathy, and the other four had cryoglobulinemia with polyclonal gammopathy. Biopsies showed perivascular infiltration by mononuclear cells around medium, and mainly small-sized blood vessels. This was observed in the epineurium (five cases) and muscular fragments (three cases). At ultrastructural examination two cases showed severe damage of most myelinated fibers, which presented acute stages of Wallerian-like degeneration, and the three other cases showed a less widespread destruction of myelinated fibers. Most endoneurial capillaries showed swollen endoneurial cells. Myelino-axonal degeneration of myelinated fibers is probably due mainly to the vasculitis always present in the epineurium. This damage was probably worsened by the modifications of endoneurial capillaries. These lesions and their mechanisms are quite different from those observed in cases of cryoglobulinemia with an isolated monoclonal gammopathy.

Aged↗

[Pyoderma gangrenosum and hemopathies. Apropos of 2 cases].

Pyoderma gangrenosum (PG) is an uncommon ulcerative disease of the skin. The cause is unknown but the condition is often associated with other diseases such as rheumatoid arthritis, ulcerative colitis, Crohn's disease or monoclonal gammopathy. The association between PG and haematological malignancies (acute leukaemia, Myeloproliferative disorders) is infrequent. Two cases of PG associated with haemopathy are described; one had primary thrombocythaemia and the other, acute myeloblastic leukaemia following for myeloma. The significance of this association is discussed in the light of other observations previously reported in the literature.

Adrenal Cortex Hormones↗

[A fatal case of chloroquine-resistant neuromalaria in a traveller to Cameroon].

A death from chloroquinoresistant falciparum malaria contracted by a traveller under chloroquine chemoprophylaxis during a stay in the Cameroon provides the authors with an opportunity to analyze the extension of chloroquinoresistance in Africa. Having appeared there about 10 years ago, it remained for a long time localized in East Africa. In recent years, it has moved West. Today, 17 countries located from the North to the South between Sudan and Mozambique, and from East to West between Kenya and the Cameroon are affected, as are the Malagasy Republic, the Comores and Zanzibar. The strains resistant to chloroquine are still sensitive to amodiaquine. In certain regions which are widespread in the continent, resistance to pyrimethamine has become evident in the last 30 years; resistance to pyrimethamine-sulfadoxine and pyrimethamine-dapsone has appeared in the last 3 years in East Africa. In the light of the complexity of the problem of malaria chemoprophylaxis, the authors emphasize the necessity of resensitizing the public at large with respect to personal protection against biting anopheline mosquitos, especially during the hours of darkness. The medical profession should equally be made aware of these new problems. Three types of chemoprophylaxis in relation to the areas visited are proposed: the first for West Africa; the second for Central Africa, neighbouring regions and the Malagasy Republic and the Comores; the third for the 3 East Africa countries the most affected, which are Kenya, Burundi and Tanzania.

Africa↗

[Ophthalmologic manifestations of leukocytoclastic vasculitis. Apropos of 3 case reports].

Ophthalmological lesions enter in the definition of Cogan's syndrome, associated with vestibulo-auditory symptoms. They are present in almost one half of patients with Wegener's granulomatosis and in 10 to 20 p. 100 of patients with periarteritis nodosa, where they may be the initial symptom. Yet they are seldom described in leucocytoclastic angiitis of small vessels, 3 cases of which are reported here. The first case concerns a 71-year old woman with cutaneous leucocytoclastic angiitis which regressed within a few days under dapsone. However, the drug had to be withdrawn on account of acute haemolysis. Thereafter, new skin lesions and severe pain in the left eye with fall in visual acuity developed simultaneously. Eye examination showed a large, marginal ulceration of the cornea extending to the adjacent sclera and reflecting deep involvement of the sclerocorneal limbus. Systemic corticosteroid therapy in doses of 1 mg/kg/day was instituted, resulting in gradual disappearance of the skin lesions and stabilization of the ophthalmic lesion. There remains, however, thinning of the cornea and sclera which entails a definite risk of perforation should the angiitis recur. The second patient was a 54-year old man seen for fever, polyarthralgia, purpura of the lower limbs and rapidly extending necrotic ulceration of the scrotum. A few days previously, inflammatory chemosis of the right eye had suddenly developed. Under systemic corticosteroids (1.5 mg/kg/day), the ophthalmic symptoms rapidly regressed, but the patient died of digestive tract haemorrhage. The third case was that of a 36-year old woman with urticaria associated with arthralgias and diffuse myalgia.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

[Cutaneous immunofluorescence in B virus diseases. 100 cases].

Immunofluorescence tests in healthy skin were performed in 75 patients with hepatitis B virus diseases (group I), in 25 HBs-antigen negative patients with the same diseases (group II) and in 90 controls (group III). HB virus diseases included acute, prolonged hepatitis; chronic, persistent and active hepatitis; cirrhosis and periarteritis nodosa. The immunofluorescence test was positive (micro- or macrogranular deposits in the walls of dermal vessels of HBs-antigen associated or not with immunoglobulins and complement) in 8 patients of group I (prolonged hepatitis 1; chronic persistent hepatitis 2; chronic active hepatitis 3; periarteritis nodosa 2), 3 of whom had no clinical manifestations, and in 3 patients of group II (chronic active hepatitis 2, periarteritis nodosa 1). Although not all patients with extrahepatic HB virus disease have a skin test positive for HBs-antigen and, conversely, a positive skin test does not necessarily imply clinical manifestations, it seems that skin immunofluorescence should be systematically performed as part of immunological investigations in all diseases where the HB virus might be involved.

Acute Disease↗