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Marcello Menta Simonsen Nico

Publications and source records attributed to Marcello Menta Simonsen Nico.

10 recordsLinked to original sources

Lupus erythematosus: clinical and histopathological study of oral manifestations and immunohistochemical profile of epithelial maturation.

BACKGROUND: Lupus erythematosus (LE) is an autoimmune disease of unknown cause. Prevalence of oral involvement in patients with LE is uncertain but may vary from 9 to 45% in patients with systemic disease and from 3 to 20% in patients with chronic cutaneous involvement. METHODS: Incidence of oral lesions of LE and their clinical aspects were investigated. Their histopathologic features were analyzed, and the status of epithelial maturation was assessed through the expression patterns of cytokeratins. RESULTS: Twenty-six patients (from 188 examined) presented oral lesions of LE. Most of them were females (19) with systemic disease (11). Clinical aspects of these lesions varied, and lips and buccal mucosa were most affected. Histologically, lesions revealed lichenoid mucositis with perivascular infiltrate and thickening of basement. Cytokeratins profile showed hyperproliferative epithelium, with expression of CK5/6, and CK14 on all epithelial layers, CK16 on all suprabasal layers and CK10 on prickle cell layers only. CONCLUSIONS: Oral lesions of LE show a variety of aspects, and their microscopic features are of a lichenoid mucositis with deep inflammatory infiltrate. Cytokeratins expression patterns are of hyperproliferative epithelium, and this phenomenon must be analyzed in relation to the inflammatory cytokines for a better understanding of the mechanisms of the disease.

Adult↗

Childhood oral mucous membrane pemphigoid presenting as desquamative gingivitis in a 4-year-old girl.

Mucous membrane pemphigoid is a chronic inflammatory, bullous subepithelial auto-immune disease, with predominant involvement of the mucosal surfaces. Oral mucous membrane pemphigoid occurring in childhood is extremely rare. We describe a new case of this entity occurring in a 4-year-old girl who presented with desquamative gingivitis. Diagnosis was based on clinical presentation, histopathology, immunofluorescence and immunoblotting examinations. Treatment and 2-year follow-up are described.

Child, Preschool↗

Erysipeloid.

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Animals↗

Disseminated cytomegalovirus disease as a cause of prolonged fever in a bullous pemphigoid patient under systemic steroid therapy.

We present the first reported case of disseminated cytomegalovirus (CMV) in association with prednisone therapy in bullous pemphigoid (BP). A 66-year-old black male patient was admitted to our hospital presenting cutaneous pruritic lesions represented by tense blisters, with serous content on the arms, abdomen and legs. Laboratory findings confirmed the diagnosis of BP. After two weeks of prednisone therapy, the patient developed prolonged fever, which was caused by CMV disseminated disease, with prompt clinical recovery after ganciclovir administration.

Aged↗

Using oral tetracycline and topical betamethasone valerate to treat acrodermatitis continua of hallopeau.

Acrodermatitis continua of Hallopeau (ACH) is a rare type of localized pustular psoriasis. We report the case of a 65-year-old alcoholic woman who had severe inflammatory ACH for 10 years. Initial therapy with sulfasalazine was unsuccessful. The patient was then treated with oral tetracycline and topical betamethasone valerate with occlusive dressing. Her condition improved dramatically after one week.

Acrodermatitis↗

Exuberant juvenile hyaline fibromatosis in two patients.

Juvenile hyaline fibromatosis and infantile systemic hyalinosis are rare autosomal recessive disorders of infancy and early childhood that are histologically characterized by deposition of hyaline material. The main clinical features are papulo-nodular skin lesions, gingival hypertrophy, joint contractures, and bone abnormalities. However, infantile systemic hyalinosis has a more severe clinical presentation, including visceral involvement and premature death. Very recently, genetic studies identified mutations in the same gene in patients with both conditions, strongly suggesting that they belong to the same disease spectrum. We report two new nonrelated patients who met the criteria for the diagnosis of juvenile hyaline fibromatosis/infantile systemic hyalinosis. Clinical, histopathologic, immunohistochemical, and ultrastructural findings are presented, as well as an extensive review of the literature. Recent information regarding pathogenesis and treatment is discussed.

Adult↗

Inflammatory peeling skin syndrome studied with electron microscopy.

Peeling skin syndrome is a rare autosomal recessive dermatosis characterized by lifelong continual skin shedding with underlying erythema. We present a 10-year-old boy with this disease. Easy peeling of the skin associated with keratotic areas was observed. Microscopic findings included psoriasiformis dermatitis. Cleavage was observed between corneocytes as well as between granular-corneum cells and within the granular cell layer. Electron microscopic findings included intra- and intercellular cleavage of corneocytes and intracellular separation of granular cells. The molecular mechanisms of peeling skin syndrome are discussed.

Child↗