Abstract Background Involvement of lacrimal apparatus by Non Hodgkin lymphoma as a first manifestation is extremely rare and only three cases have been reported in children. The purpose of this report is to determine the clinical characteristic of patient with primary involvement of lacrimal apparatus with lymphoma. Case presentation A 7-year-old girl with history of tearing, gradually prog...

Posterior scleritis is a rare underdiagnosed condition that can potentially cause blindness. Its varied presentations lead to delayed or incorrect treatment. We present here the cases of two patients with nodular posterior scleritis mimicking a choroidal metastasis. Two female patients presented with a sudden unilateral visual loss associated with ocular pain. Fundus examination revealed tempor...

Two serial passages of canine malignant lymphoma (CML) were accomplished in 2 litters of Beagle neonates with suspen sions of viable CML whole cells. In these experiments 3 of 15 dogs inoculated with a single dose of either a cell suspension or a cell-free extract developed malignant lymphoma at 50, 53, and 80 days postinoculation. Two dogs with overwhelming CML were preirradiated, while one do...

undifferentiated nasopharyngeal corcinoma is frequently misdiagnosed as large cell malignant lymphoma. the aim of this study is to evaluate the diagnostic role of immunohistochemistry and electron microscopy in this tumor. 81 cases of nasopharyngeal carcinoma were studied. patients ranged from 9-90 years in age (mean: 48.5 years). the age incidence curve was bimodal with two peaks in 2-3 and 5-...

PURPOSE To report a case of diffuse peripapillary choroidal melanoma which began as a small choroidal nevus and was successfully treated with gamma knife radiotherapy. METHODS Observational case report. RESULTS A 31-year-old visually asymptomatic man presented for a routine eye examination and was noted to have a small choroidal nevus. Six years later, the lesion had become a diffuse juxtap...

Given the lower incidence and differences in distribution of malignant lymphoma in Asian than western populations, the association of alcohol intake and smoking with malignant lymphoma risk in Asian populations merits investigation. Here, we conducted a sex- and age-matched case-control study of a Japanese population using two data sets, the first and second versions of the Hospital-based Epide...

Carcinoma of the colon as a complication of chronic ulcerative colitis is relatively common, whereas malignant lymphoma is apparently rare. We report two cases of patients with malignant lymphoma complicating ulcerative colitis, a CD 30 + T-cell lymphoma of the intestine and a low grade B-cell non-Hodgkin's lymphoma of MALT type. It is important to be aware of the possibility of malignant lymph...

The development of malignant lymphoma in myoepithelial sialadenitis with and without Sjögren's syndrome was investigated. At first, prelymphomatous proliferation areas showing a polytypic immunoglobulin (Ig) pattern were seen. These transformed into malignant lymphoma with a monotypic Ig pattern, at first in small, circumscribed proliferation areas ("early lymphoma") and later in large, conflue...