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Biomedical subjects

F El Mezni

Publications and source records attributed to F El Mezni.

16 recordsLinked to original sources

[Pulmonary mucormycosis. Two cases].

Mucormycosis is a rare, devastating, opportunistic fungal infection, which occurs principally in some particular conditions, specially in non-controlled diabetic patients, notably during keratoacidosis. We report two cases in 62 and 72 year-old diabetic women. In both cases, histologic examination of endobronchial biopsies showed tissue invasion by hyphae with characteristic morphology leading to the diagnosis of pulmonary zygomycosis. This difficult diagnosis must be evoked in diabetic patients with non-responsive lung infections in order to apply early aggressive therapy.

Aged↗

[Solitary plasmocytoma of the rib: a rare tumor not to miss].

Solitary plasmocytoma is a rare tumor accounting for 5% of all plasma cell neoplasias. The diagnosis is based on identification of the localized tumor composed of monoclonal plasma cells identical to those observed in multiple myeloma, and absence of the signs in favor of a disseminated form. We report the case of a52-year-old man who presented a growth of the chest wall in the left axillary region. Imaging disclosed a mass of tissue with a large zone of osteolysis of the 6th rib and infiltration of the chest wall. Surgical biopsy for pathology study and immunohistochemistry enabled the diagnosis of costal plasmocytoma. Blood protein immunoelectrophoresis revealed a monoclonal kappa type IgG. Bence-Jones proteinuria was positive. Search for other localizations was negative and the diagnosis of solitary plasmocytoma was retained. Radiotherapy was delivered and the patient has remained in remission at one year. Costal localization is rare for solitary plasmocytoma. The diagnosis is based on imaging findings and pathology. Radiotherapy is the treatment of choice but with the risk of progression with other bone lesions, the development of medullary plasmocytosis and multiple myeloma. Factors predictive of systemic recurrence have not been identified. Regular surveillance is required.

Bone Neoplasms↗

[Hydatid pulmonary embolisms. Seven cases].

Hydatid pulmonary embolism is a rare condition. Diagnosis is difficult and there is no consensus on treatment. Prognosis is generally poor. We conducted a retrospective analysis of patients hospitalized between 1994 and 2002 who had a diagnosis of hydatid pulmonary embolism. Seven cases were identified. All patients had a cyst which spontaneously ruptured into the bloodstream. All patients were symptomatic. Chest x-ray revealed images of metastatic pulmonary echinococciasis in all patients. Thoracic CT and/or angioscan provided the diagnosis in five patients. In one, the diagnosis was established with pulmonary angiography. For one other, the diagnosis was established at the pathology examination of the surgical specimen. Searching for the primary localization of the hydatid disease revealed hepatic cysts in all patients, associated in one with a cyst in the right atrium. The cardiac cyst was not operated and all hepatic cysts were removed. Embolectomy was performed in one patient. Medical treatment with albendazole was given in five patients. The clinical course was marked by death in two patients, due to abundant hemoptysia. The five other patients are followed regularly and were doing well at six months to five years. The diagnosis of hydatid pulmonary embolisms is basically obtained with imaging. Treatment is surgical resection of the embologenic focus then embolectomy. The role of medical treatment is not clearly defined. The short- and mid-term prognosis is generally poor.

Adolescent↗

[Mucoepidermoid carcinoma of the lung. A series of 10 cases].

Mucoepidermoid carcinoma of the lung is rare. The microscopic findings distinguish low grade and high grade tumors. Conservative surgical resection is appropriate if possible for low grade tumors. For the high grade tumors, combined wide surgical resection and radiotherapy is recommended. We report 10 cases of mucoepidermoid carcinoma of the lung (5 low grade, 5 high grade) in 8 male and 2 female patients with a mean age of 43.9 years. Only 5 of 10 were smokers. All 10 patients underwent surgery. Operative procedures included 8 lobectomies and 2 pneumonectomies. Two patients received radiation therapy postoperatively. Three patients (2 high grade and 1 low grade) died. The other 7 patients were alive without evidence of recurrence.

Adult↗

[Idiopathic pulmonary hemosiderosis in adults].

Idiopathic pulmonary hemosiderosis (IPH) is a rare cause of diffuse alveolar hemorrhage characterized by abnormal deposition of hemosiderin iron in the macrophages of alveoli. Most cases occur in children. In adults, IPH is rare: almost 10 cases reported during the late 10 years. We report the case of a 20-year-old-girl with IPH. There was no evidence of pulmonary vasculitis or capillaritis. Long-term treatment with systemic corticosteroids was followed by clinical remission lasting 4 years.

Adult↗

[Complete extraction of a hydatid membrane by bronchial fibroscopy].

Pulmonary hydatid cyst is exceptional in our country. The diagnosis is generally established on the basis of imaging. Surgical treatment is indicated in most patients. We report a case of pulmonary hydatid cyst in a 74-year-old smoker (11 package-years) who presented cough with mucopurulent expectoration and occasional hemoptysis. The chest x-ray demonstrated a poorly delimited heterogeneous opacity in the upper third of the left lung which persisted after antibiotic therapy. Bronchial fibroscopy revealed a hydatid membrane in the left superior bronchus which was totally removed by aspiration. A control radiography after the fibroscopy demonstrated a clear regression of the opacity. A thoracic CT-scan was performed and revealed a residual cavity in the left upper lobe with bronchial dilatation. The indication for surgery was not retained. Treatment of pulmonary hydatid cyst by endoscopy is an exceptional event. Our exceptional case illustrates an atypical radiological presentation and the use of "therapeutic" fibroscopy.

Aged↗

[Huge benign lung tumor in a female smoker].

UNLABELLED: Pulmonary sclerosing hemangioma is a rare, slow-growing, benign tumor. Its potential for progression and its histiogenesis remains controversial. CASE REPORT: A routine chest X-ray revealed a right abdominal mass in 41-year-old woman. Search for a cause was negative. The patient underwent posterolateral thoracotomy for tumorectomy. Intraoperative pathology analysis revealed the benign nature of the tumor. No complication was observed postoperatively. The final pathological conclusion was sclerosing hemangioma of the lung. Pulmonary sclerosing hemangioma is a parenchymal tumor of the lung. The latest immunohistochemical studies of this lesion suggest a pneumocyte origin. Prognosis is good, but extension to lymph nodes may occur. Surgery is always required for cure, and must be associated with lymph node dissection for large tumors.

Adult↗

[Inflammatory pseudo-tumor of the lung. A pathology clinical study of one case].

Inflammatory pseudo-tumors of the lung are generally unifocal lesions with a benign prognosis. The pathogenesis is unknown. We report the case of a 71-year-old man who underwent exploration for dyspnea and chest pain associated with weight loss and a heterogeneous opacity in the lingula. This radiological and clinical presentation suggested a malignant bronchopulmonary tumor. Surgery was performed and the histologocial examination of the surgical specimen corrected the diagnosis: inflammatory pseudo tumor. No recurrence has been observed at three years.

Aged↗

[Lung carcinosarcoma. A case report].

Carcinosarcoma of the lung is a rare highly malignant tumor of unknown histogenesis. There is an epithelial carcinomatous component and a malignant mesenchmatous component with heterologous tissue. Survival at two years after surgical resection is not greater than 10%. We report a case observed in a 71-year-old man who developed chest pain. Outcome was fatal at three months. Pathology examination of a transparietal biopsy provided the diagnosis which was confirmed by immunohistochemistry on the surgical resection specimen.

Aged↗

[Benign myoepithelioma of the lung].

Benign myoepithelioma of the lung is a benign tumor caused by proliferating myoepithelial cells with no ductal component. These tumors are exceptional: only three cases have been reported in the literature. We report a fourth case in a 37-year-old woman at 8 months gestation. Pathological proof of diagnosis was obtained.

Adult↗

[Metastatic benign leiomyoma in a 46-year-old woman].

Chest X-ray in a 46-year-old woman with a history of hysterectomy for a uterine mass revealed a nodular opacity measuring 3 cm. Computed tomography identified 3 other nodules. Histology examination of the lung lesions identified the same configuration as that of the hysterectomy specimen performed two years earlier: benign metastatic leiomyoma. Approximately 40 cases have been reported in the literature.

Diagnosis, Differential↗

[Thymolipoma. A case report].

Thymolipoma is an uncommon benign tumor of the thymus. Asymptomatic, it is an incidental discovery. Pathogenesis remains controversial. We report a new case in a 36-year-old woman that was discovered on a chest x-ray ordered for pneumonia. The MRI findings suggested the diagnosis which was confirmed at the pathology examination of the surgical specimen.

Adult↗

[Lung metastasis disclosing a calf tumor].

Lung metastasis is a common finding, either before, with or after discovery of the primary tumor. Histological examination of a lung formation of unknown origin can lead to diagnosis of a primary tumor. We report the case of a 28-year old woman who presented an apparently primary tumor in the lower left pulmonary lobe. Pathology reported soft tissue alveolar sarcoma. The first manifestation of this rare soft tissue tumor can be a lung or brain tumor. Imaging evidenced the primary tumor in the left calf. Histology confirmed the diagnosis and the metastatic nature of the lung tumor.

Adult↗