There are few effective models for the study of human lymphoid neoplasms, including in vivo xenografts in immunocompromised animals. Exploiting the additional immune privilege of the anterior chamber of the nude mouse eye, a novel method of direct heterotransplantation of cells from childhood leukemias and lymphomas has been developed. The establishment and characterization of 18 lymphoid xenog...

CASE REPORT We describe a 79 year-old woman who had a small lesion on the inner corner of her right eye for the last 6 months. The lesion was surgically excised and histologically analysed, with a diagnosis of oncocytoma of the caruncle. DISCUSSION Ocular oncocytomas are rare benign neoplasms found in the caruncle, conjunctiva, lacrimal gland and lacrimal sac. They are composed of transformed...

a 22-year-old man presented with exertional dyspnea commencing one month prior to his admission. echocardiography revealed a non-homogenous mass, and the pathology examination of the pericardial biopsy was compatible with angiosarcoma.

A 30-year-old man was admitted because of febrile respiratory infection and confusion. A lumbar puncture revealed mild pleocytosis and elevated protein. Continuous conjugate eye oscillations in horizontal, rotatory, and vertical direction and diffuse myoclonus were observed (figure; see video on the Neurology Web site at www.neurology.org). Cytomegalovirus (CMV) encephalitis was diagnosed on th...

Leiomyosarcoma of the iris is rare. Blodi (i964) doubted the occurrence of malignant myomata in the iris. Ashton (i964) described four cases of leiomyosarcoma as almost certainly malignant. The invasive properties of one of the neoplasms described were so obvious, that it was considered the most definitely malignant (Fig. i). The patient from whom this neoplasm was removed recently attended the...

Trichoepitheliomas are uncommon benign adnexal neoplasms that originate from the hair follicles. Multiple familial trichoepithelioma constitute an autosomal dominant disease characterized by the appearance of multiple flesh-colored, symmetrical papules, tumors and/or nodules in the central face and occasionally on the scalp. Although clinical diagnosis is usually straightforward in light of the...

Embryonal rhabdomyosarcoma of orbit presenting as a case of rapid proptosis of the right eye is reported in a 4 year old male child. There was no evidence of recurrence during a follow up of 6 months. Rhabdomyosarcoma is one of the most common primary malignant orbital neoplasms of child hood. It usually produces a precipitously progressing unilateral proptosis of sudden onset. It is a highly m...

OBJECTIVE To report the clinical and histopathologic findings of retinal astrocytic tumors that showed progressive growth in four patients with tuberous sclerosis complex (TSC). METHODS Four young children each developed an enlarging retinal neoplasm that eventually necessitated enucleation of the affected eye. The systemic findings, clinical course, and histopathologic findings were reviewed...

Air pollution is a significant health risk factor. Long-term exposure to ambient air has impact on chronic respiratory illnesses and diseases related problems. The aim of this study was investigate the association between pollution, in Northern Thailand. daily mean concentrations PM10 PM2.5, including meteorological condition data from 2015 2020, were measured recorded by Pollution Control Depa...