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Biomedical subjects

M Mokni

Publications and source records attributed to M Mokni.

At least 55 records · Page 3Linked to original sources

[Acute rhabdomyolysis disclosing polymyositis in children].

UNLABELLED: Traumatic and non-traumatic rhabdomyolysis have been mostly reported in adults. Polymyositis rarely leads to rhabdomyolysis. CASE REPORT: We report the case of a 13-year-old girl with rhabdomyolysis. Full recovery was observed after symptomatic treatment. Nine months later she developed polymyositis. CONCLUSION: Long-term follow-up is necessary for rhabdomyolysis, even in those cases with an isolated occurrence caused by viral infection.

Acute Disease↗

[Pyoderma gangrenosum. 15 cases].

We report a retrospective study of 15 cases of pyoderma gangrenosum. The male/female ratio was 2, average age 40 years (range: 2-48 years). The typical ulcerous form was observed in 11 patients, whereas bullous pyodrma gangrenosum was noted in 2 patients and the granulomatous superficial form in 2 others. The leg was the most frequent localization. It was often associated with another skin localization. Two patients had neutrophilic pulmonary involvement which was concomitant to the skin ulcers. Association with internal disease was found in 8 patients. Histology showed vasculitis in 11 patients. In 9 of them, leukocytoclastic vasculitis was observed. Prednisone and clofazimine were the most frequently prescribed drugs. Th rate of recurrence of pyoderma gangrenosum was 46% independently of treatment. Occurrence of neutrophilic pneumopathy was rapidly fatal in two of our patients

Adolescent↗

[Intense hemosiderin deposits in a case of self-healing congenital histiocytosis].

BACKGROUND: Congenital self healing histiocytosis, described for the first time in 1973 by Hashimoto and Pritzker, is characterized by multiple violaceous brown cutaneous papulonodules present at birth and disappearing spontaneously in 2 to 4 months. There are classically no systemic manifestations and the prognosis is always good. We present a case, particular by the intensity of hemosiderinic deposits. CASE-REPORT: The patient was a 2-month-old female infant. Physical examination at birth revealed a healthy-appearing full-term newborn, with five skin lesions: firm violaceous-reddish pigmented papules and nodules distributed over the head (scalp and forehead), right ear, right forearm and the flexural aspect of the left thigh. There was no hepatosplenomegaly or lymphadenopathy, and the patient's general condition was excellent. Histologic examination confirm the diagnosis by showing a dense polymorphous infiltrate composed of histiocytes associated with giant cells and erythrocytes extravasation. Perls stain was strongly positive. Staining with S100 Protein was positive. Outcome was good with involution of all lesions with atrophic and pigmented scars. DISCUSSION: The patient's excellent general condition, the absence of visceral locations and the spontaneous self healing allows us to classify this form as a benign self healing congenital histiocytosis. This patient presented intensely hemosiderinic deposits giving the lesions a strongly pigmented aspect.

Hemosiderosis↗

[Gougerot-Sjögren syndrome disclosed by MALT lymphoma of the salivary glands. Report of 3 cases].

Sjögren's syndrome is characterized by an increased risk of developing non-Hodgkin's lymphoma. The lymphoma is most frequently extra-nodal, preferentially affecting the salivary gland: low-grade MALT lymphoma. Conversely, underlying Sjögren's syndrome has been recently identified by some authors in patients with non-Hodgkin's lymphoma. In the present report, we present three cases of Sjögren's syndrome disclosed by low-grade salivary gland MALT lymphoma. The patients were all women aged 33, 38 and 52 years. Extension work-up revealed nodal and bone marrow involvement in one case and no evidence of disseminated disease in the two others. Using the European criteria, all of our patients had certain Sjögren's syndrome. Labial salivary gland biopsy and immunopathological studies in newly diagnosed low-grade MALT lymphoma would be helpful in identifying the real frequency of this association.

Adult↗

[Giant cell lesions of the maxilla disclosing primary hyperparathyroidism].

We report 2 cases of giant-cell lesions of the maxilla in two female patients aged 42 and 22 years. The initial diagnosis was giant-cell tumor and giant-cell repair granuloma. The diagnosis of brown tumor was established at discovery of primary hyperparathyroidism. We emphasize the importance of searching for hyperparathyroidism in patients with a giant-cell lesion of the maxilla.

Adenoma↗

[Epidemiologic and parasitologic data concerning sporadic cutaneous leishmaniasis in northern Tunisia].

This study refers to 23 patients presenting with the sporadic forms of cutaneous leishmaniasis encountered in northern most humid parts of Tunisia. Culture inoculation for parasitic isolation was processed using two media: the classical NNN and a rabbit serum based medium (SLC). Cultures were positive in 17 cases with SLC medium and 13 cases with NNN medium. Eight isolates were typed using 15 isoenzymes systems. Six isolates were identified as Leishmania infantum MON-24 which confirms the crucial role of this zymodeme in causing this form of cutaneous leishmaniasis. The other two isolates were identified as Leishmania infantum MON-1, which is the principal agent of visceral leishmaniasis in the Mediterranean area.

Adolescent↗

[Tuberculous mesenteric lymphadenitis: a case report].

The authors report a case of mesenteric tuberculous lymphadenitis which mimic a pancreatic cystadenoma. They emphasize ultrasound and CT scan features which lead to the recognition of tuberculosis and permit a percutaneous fine needle biopsy. Laparotomy seems the most reliable method for a positive diagnosis. The place of different imaging methods is discussed.

Adult↗

Leishmanin skin test lymphoproliferative responses and cytokine production after symptomatic or asymptomatic Leishmania major infection in Tunisia.

Resistance to Leishmania parasite infection requires the development of a cellular immune response that activates macrophage leishmanicidal activity. In this study we have investigated the lymphoproliferative responses and in vitro cytokine production of peripheral blood mononuclear cells (PBMC) from individuals living in an endemic area for L. major infection in Tunisia. The results were compared with the DTH reaction of the leishmanin skin test (LST). Sixty-seven individuals were included in the study: 22 persons (age range 9-60 years) who developed, 2 years before the present study, a parasitologically confirmed localized cutaneous leishmaniasis (LCL) that healed spontaneously, and 45 individuals (age range 18-20 years) born and living in the same area, with no previous history of LCL. LST was positive (skin induration > or = 5 mm) in 20/22 cured cases of LCL and in 75% of healthy individuals without history of LCL. LST+ individuals expressed vigorous Leishmania-specific lymphoproliferative responses associated with in vitro production of interferon-gamma (IFN-gamma) but not IL-4. Interestingly, IL-10 was detected in parallel with the highest levels of IFN-gamma in PBMC supernatants from 3/20 cured LCL and 8/25 individuals without history of LCL. Our results showed a 98% concordance between the DTH reaction assessed by LST and the in vitro proliferative assay induced by soluble leishmanial antigens. Moreover, proliferative assays as well as cytokine analysis did not show any significant difference of the immune memory to parasite antigens developed by patients who had overt cutaneous leishmaniasis and those who had apparently asymptomatic infection.

Adolescent↗

[Neurosarcoma of the submandibular gland arising in a pleomorphic adenoma. Apropos of a case].

A 71-year-old woman consulted for a tumor of the right submandibular gland that had been present for 4 years and had rapidly increased in size during the last two months. Histological examination of frozen sections and immunohistochemistry concluded to a poor differentiated sarcoma probably a neurosarcoma with residual pleomorphic adenoma component. In spite of wide resection, local recurrences with nodes and lung metastases occurred leading to the death of the patient. We think interesting to report this unusual salivary tumor and to discuss its pathological features.

Adenoma, Pleomorphic↗

[Thymic cyst in the neck. Apropos of a case].

Cervical thymic cyst is an uncommon lesion. It is usually diagnosed after cervicotomy for lateral swelling of the neck. We present a case in a 12-year-old boy. Clinical diagnosis was cystic hygroma, but computed tomography revealed extension of the cyst to the anterior mediastinum, suggesting its thymic origin. Successful excision was performed through a neck incision alone. There has been no recurrence of the cyst nor immune deficiency within a 2-year follow-up. Pathogenesis and diagnostic modalities are discussed.

Child↗

[Vulvar Crohn disease: 3 cases].

BACKGROUND: Vulvar involvement in Crohn's disease is uncommon. The elementary lesion is usually an ulceration: 44 cases have been reported in the literature. In 20 p. 100 of the cases, vulvar involvement is the only manifestation of the disease. We report 3 new cases of vulvar lesions in Crohn's disease. CASE REPORTS: The first case had vulvar lesions which complicated ileocolic Crohn's disease, in the other two cases there were no digestive manifestations. One patient developed voluminous edema of the right labium. The diagnosis of Crohn's disease of the vulva was suggested by the characteristic lesions, presence of epithelioid and giant cell granuloma at histology examination of the vulva specimen and finally on rapidly favorable course after treatment with sulfasalazine. The ulcers regressed with medical treatment but remission was temporary with recurrence at treatment withdrawal. DISCUSSION: These cases underline the difficulties encountered in establishing the diagnosis of Crohn's disease in patients who develop vulvar ulcerations alone with no signs of digestive disease and emphasize the difficult problem of long-term control.

Adolescent↗