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ABSTRACT. A schwannoma is a slow-growing benign neoplasm of the peripheral nerves composed of Schwann cells. Pathologically, is characterized by solid, subcutaneous, asymptomatic lesions. Histologically, it is made of prototypes of cellular organization called Antoni A and Antoni B. The most common site for its occurrence is the tongue, followed by the palate, the floor of the mouth, the buccal mucosa, the lips, and the mandible. This article describes the case of a 55-year-old woman presenting with a firm, nodular, encapsulated mass in the sub mucous area of the vestibular zone behind the right cheek. The clinical, pathological, and immunohistochemical analysis showed that this was a case of intraoral schwannoma.
RESUMEN. El schwannoma es una neoplasia benigna de crecimiento lento de los nervios periféricos compuestos por células de Schwann. Su anatomía patológica se caracteriza por lesiones sólidas, subcutáneas y asintomáticas. Histológicamente está compuesto por prototipos de organización celular denominados Antoni A y Antoni B. La lengua es el sitio más común, seguido por paladar, piso de boca, mucosa bucal, labios y mandíbula. En este trabajo se describe un caso de una mujer de 55 años que presenta una masa firme, nodular y encapsulada en la zona submucosa del vestíbulo derecho detrás del carrillo. Después del análisis clínico, patológico e inmunohistoquímico, se determinó que era un caso de schwannoma intraoral.
Asunto(s)
Inmunohistoquímica , Técnicas de Investigación , Carcinoma NeuroendocrinoRESUMEN
Introduction: Pulmonary sequestration(PS) is a cystic or solid mass composed ofnonfunctioning primitive tissue that doesnot communicate with the trachea-bronchialtree and has anomalous systemic bloodsupply. Pulmonary sequestration is a raredisease, of unknown etiology, representing0.1-6% of all structural lung diseases anddevelopmental malformations. We describea case of girl with pulmonary sequestration.Result: She has been admitted in ourhospital with left lower lobe mass. Fordifferential diagnosis we did X-ray, CTscanning, MRI of chest and angiography.In the X-ray had been detected retrocardiactriangular mass. CT scanning shown us massin the left lower lobe. Due to angiography wecan’t seen arterial supply. MRI demonstratedas like as X-ray, retrocardiac triangular mass.She had been gone under the electivesurgery: Left thoracotomy, resection ofpulmonary sequestration, drainage of pleuralcavity.During and after the surgery had notcomplication and she had been dischargedafter few days of post-operative treatment.She had been fully recovered.Conclusions: Pulmonary sequestrationis rare anormaly with multiple theoreticaletiologies. Due to high technological imaginginvestigations can take right diagnosis.The patient can be fully recovered afterthe surgical treatment. Intralobular typeis more difficult to resect the pulmonarysequestration.
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Rhizoctonia solani is a most widely recognized strong saprophyte with a great diversity of host plants. It is a first ever case of extensive human mycosis caused by Rhizoctonia solani in a 65-year-old diabetic and hypertensive farmer, with a history of head injury caused by fall of mud wall. Necrotic material collected revealed septate fungal hyphae with bacterial co-infection. Fungal culture on SDA at 25°C showed cotton wooly growth progressing to greyish-white to shiny metallic black colonies and identified on basis of septate mycelial growth without conidia, right angle branching, presence of compact hyphal forms and anastomosis between branching hyphae on LPCB mount.