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Biomedical subjects

C Beylot

Publications and source records attributed to C Beylot.

At least 127 records · Page 7Linked to original sources

Cutaneous metastasis from papillary carcinoma of the thyroid. A case confirmed by monoclonal antithyroglobulin antibody.

A 59-year-old woman with a history of papillary carcinoma of the thyroid gland developed three reddish nodules on the scalp. A skin biopsy showed a dermal tumor composed of sheets of clearly differentiated thyroid vesicles. Cutaneous metastases of thyroid carcinoma are very rare and this case is the first case confirmed by immunoperoxidase studies using monoclonal antithyroglobulin antibody. Positive reactions were obtained in colloid and at apices of thyrocytes. Monoclonal antibodies to human thyroglobulin may offer a unique opportunity to confirm the tissue origin of cutaneous metastasis.

Acitretin↗

Roxithromycin in skin and soft tissue infections.

In a double blind randomised investigation in 76 patients, roxithromycin (150 mg bd) and doxycycline (200 mg once daily) were compared in two groups of patients who were well-matched for age, sex, body weight, diagnosis, duration and severity of disease and associated pathological conditions, with infected skin conditions. Clinical effectiveness was 92% for roxithromycin and 82% for doxycycline, and bacteriological effectiveness also 92% and 82% respectively, the differences not being statistically significant.

Aged↗

Monoclonal IgM and chronic urticaria: two cases.

We report two patients with chronic urticaria and serum monoclonal IgM without detectable lymphoid disease. In the 14 cases previously reported, clinical, histologic, and immunologic characteristics appeared very similar. The pathogenesis of this peculiar entity is discussed.

Aged↗

[Cutaneous metastases of a prostatic cancer. Apropos of a case].

Cutaneous metastasis from prostatic carcinoma are quite unusual (40 reported cases in the literature), usually occurring several months or years after initial diagnosis. In our patient tumoral nodules were exclusively located on the scrotum. Prostatic nature of metastatic cells were proved by Immunocytochemistry.

Adenocarcinoma↗

[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↗

[Postoperative pyoderma gangrenosum. Apropos of 2 cases].

The typical lesion of pyoderma gangrenosum is a rapidly extending necrotic ulceration, often associated with a system affection, inflammatory colitis, hematologic affections, rheumatic disorders. In about 30% of cases it develops on the site of a sometimes minimal injury. In the two cases reported one developed in the region of a graft after excision of a basal cell epithelioma, the other in a peritoneal drainage scar after colon resection. In patients with pyoderma gangrenosum, initial discussion must involve possible causes of the cutaneous necrosis, but in the cases reported the clinical appearance and rapid progression of the lesion, and negative results of serial bacteriologic and mycologic examinations were in favor of this diagnosis. An accurate diagnosis is essential since general corticotherapy is usually necessary.

Adrenal Cortex Hormones↗

[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↗