Biomedical subjects

S Louahlia

Publications and source records attributed to S Louahlia.

11 recordsLinked to original sources

PubMed2003

[Medico-legal certificates in dentistry-oral medicine].

Certificates are acts meant to note facts of medical order. They constitute the proof of the bodily damage in a file of repair request. Only a doctor in medicine can write such a paper. The disciplinary, penal and civilian responsibility is committed every time that the doctor agrees to write a medical certificate. The medical secret must be respected when writing such a medical certificate. The document must be handed the patient. The dentist can establish certificates of different nature when he is asked by his patients, since the noted facts are part of his expertise. The certificate must be written after exam of the patient. The description of the lesions must be precise and complete. Under pain of nothing, the medical certificate must include: the identity of the doctor, the patient's one, the date of writing and the signature of the editor. The ITT show on the medical certificate is of great importance because it determines jurisdictions related to voluntary and involuntary violence.

Confidentiality↗

PubMed2001

[Primary malignant melanoma of the cervix uteri: apropos of 1 case with review of the literature].

The authors report a case of malignant melanoma of the cervix uteri diagnosed in a young 35-year-old patient. Isolated genital bleeding was the beginning symptom. The physical exam showed a cervical dark tumor, with extension into the vagina (superior third), the parametrium was free. Cervical biopsy concluded to a malignant melanoma. No other abnormalities were observed and the tumor was classed stage IIA-FIGO. A total hysterectomy with bilateral annexectomy and pelvic lymphadenectomy was performed. In the way, the patient died after ten months by local and general recurrence. Primitive malignant melanoma of the cervix uteri is rare. Only 39 cases are reported in literature at this day. It is usually initially misdiagnosed mainly in the achromic forms, then the immuno-histochemical study is useful. Its treatment is not well codified and its histogenesis was controversial for a long time.

Adult↗

PubMed1999

A rapid and reliable method for NO quantification and 15NO/14NO determination using isotope ratio mass spectrometry: an application for the detection of NO synthesis in propionibacteria.

For the last decade, numerous studies have focused on the positive or toxic effects of nitric oxide (NO) in procaryotic and eucaryotic cells. This gas has fundamental roles in neurotransmission, vasodilatation, cytotoxicity, and intestinal motility. The ability to produce NO by intestinal microflora or probiotic bacteria is unknown. In this preliminary study, we present a rapid and reproducible procedure for NO quantification and 15NO/14NO determination (based on the reaction between nitrite and acidic potassium iodide) by isotope ratio mass spectrometry. Using this method, we have demonstrated for the first time in vitro production of NO by a dietary bacterium (Propionibacterium acidipropionici, Pa 1) under anaerobic culture conditions. Using different sources of nitrogen, we have clearly shown that propionibacteria can synthesize NO from reduction of nitrate or nitrite. In our experimental conditions, NO synthase was not involved in NO production by propionibacteria.

Anaerobiosis↗

PubMed1995

[Retroperitoneal liposarcoma. Two cases].

Concerning two cases of liposarcomas developing in the retroperitoneal space, the characteristics of these rare tumors are reviewed. They are the most frequent mesenchymal tumors. Often, they are uncovered by palpable abdominal mass or when they compress adjoining organs. Computed tomography has proved valuable in the diagnosis of these lesions. Surgical removal is the treatment of choice. Recurrences are frequent and prognosis is poor.

Adult↗

PubMed1995

[Mediastinal malignant schwannoma disclosed by pericardial tamponade in von Recklinghausen disease].

The authors report a case of a 47-years-old patient with Von Recklinghausen's disease. He was admitted with pericardial tamponade. 2D echocardiography showed, in addition to the compressive pericardial effusion, an enormous intrapericardial tumor compressing the left cardiac cavities. The patient died soon after pericardial drainage. The post-mortem examination revealed the diagnosis of malignant schwannoma of the left costo-vertebral gutter with an anterior intrapericardial development. A review of the literature showed that malignant schwannomas are seldom localized in the mediastinum, are associated with Von Recklinghausen's disease in 2 to 13% of cases, and have a poor prognosis. Pericardial tamponade is an exceptional presenting sign of mediastinal malignant schwannoma.

Cardiac Tamponade↗

PubMed1994

[Carcinosarcoma of the bladder. Apropos of two cases].

The authors report two cases of carcinosarcoma of the bladder, review the literature, and study the clinical, histological, therapeutic and evolutive aspects of this unusual tumor. It is a rare tumor which represent less than 0.5 per cent of all cancers of the bladder. It is three times more frequent in men than in women. Hematuria is the most frequent alarming symptom and pathogenesis is still a matter of debate. Diagnosis is based on the pathological examination including immunohistochemical study and, if necessary, with electron microscopy examination. The tumor contains two highly malignant cellular components: one is epithelial and the other is mesenchymal. Treatment is not well codified. Early diagnosis and radical cystectomy seem to improve the prognosis, which is usually poor. 5 year survival rate is about 20 per cent.

Carcinosarcoma↗

PubMed1988