An Unusual Presentation of Midline Lethal Granuloma.

Extranodal natural killer T-cell lymphoma, nasal type (ENKTCL), is a rare form of non-Hodgkin lymphoma that is strongly related to Epstein-Barr Virus (EBV) infection and commonly presents as "midline lethal granuloma." Herein, we report a middle-aged lady who presented with a two-week history of fever, sore throat and constitutional symptoms. Intraoral examination revealed a lacerated soft palate with an ulcerated uvula.

Primary Extraosseous Ewing Sarcoma of the Maxillary Sinus in an Adult-A Rare Case Report.

Introduction: Ewing sarcoma (ES), which is described as diffuse endothelioma of the bone, is divided into osseous and extraosseous Ewing sarcoma (EES) mostly affecting children and adolescents. It is a rare, aggressive, and poorly differentiated small blue round cell tumor that seldom affects the head and neck regions.

Case Report: Herein, we reported a 46-year-old man presenting with right nasal block, epistaxis, and epiphora from the right eye for one month.

Nasopharyngeal Carcinoma with Cystic Cervical Metastasis Masquerading as Branchial Cleft Cyst: A Potential Pitfall in Diagnosis and Management.

Introduction: Most metastatic lymph nodes from head and neck malignancy are solid. Cystic nodes are found in 33% - 61% of carcinomas arise from Waldeyer's ring, of which only 1.8% - 8% originate are from the nasopharynx.

Presence of human papillomavirus in pterygium in Taiwan.

Purpose: To evaluate the prevalence and possible role of human papillomavirus (HPV) in the formation of pterygia in patients in Taiwan, a tropical country with high prevalence of pterygium.

Methods: A total of 62 patients with 65 pterygia were retrospectively examined. Ten normal conjunctiva, 8 conjunctival nevi, and 2 malignant conjunctival melanomas served as controls.

Herpes simplex virus and pterygium in Taiwan.

Purpose: To evaluate the presence of herpes simplex virus (HSV) in pterygia to study the possible association between HSV and pterygia in Taiwan, a tropical country with a high prevalence of pterygium.

Methods: Sixty-five pterygia, 10 normal conjunctiva, 8 conjunctival nevi, and 2 malignant conjunctival melanomas were obtained. Clinical histories were recorded for each patient.

Immunohistochemical expression of OCT4 in primary central nervous system germ cell tumours.

OCT4 is a POU-domain transcription factor that is expressed in embryonic stem cells and germ cells. OCT4 has been detected in specific types of testicular germ cell tumour (GCT), including seminoma and embryonal carcinoma. The aim of this study was to evaluate the role of OCT4 expression in the diagnosis of primary central nervous system (CNS) pure and mixed GCT.

Paecilomyces lilacinus scleritis with secondary keratitis.

Purpose: To report a case of Paecilomyces lilacinus scleritis with secondary keratitis after initially diagnosed immune-based scleritis.

Methods: An 82-year-old man was diagnosed with immune-based scleritis and treated with oral cyclophosphamide 50 mg twice daily. However, multiple scleral abscesses and a fibrinoid aqueous reaction developed 3 months later.

Aortic dissection in a young patient without any predisposing factors.

Aortic dissection is rare in the pediatric and young adult population. We hereby present a case of a 17-year- old male patient, without any predisposing factors, who developed an aortic dissection. The initial presentation was acute abdominal pain with massive retroperitoneal hematoma.

Simultaneous occurrence of Hodgkin's lymphoma and Kaposi's sarcoma within the same lymph nodes of a non-AIDS patient.

We report a case of simultaneous occurrence of Hodgkin's lymphoma and Kaposi's sarcoma within the same lymph nodes of a 61-year-old woman without human immunodeficiency virus (HIV) infection. Epstein-Barr virus (EBV) was detected in the Hodgkin cells and Reed-Sternberg cells by EBV LMP-1 immunostaining and Epstein-Barr virus encoded early RNA (EBER) in situ hybridization. In contrast, Kaposi's sarcoma cells were positive for human herpes virus 8.

Clinical and endoscopic features for alimentary tract cytomegalovirus disease: report of 20 cases with gastrointestinal cytomegalovirus disease.

Background: The clinical presentations and endoscopic features of cytomegalovirus (CMV) infection in the gastrointestinal (GI) tract are diverse, and can mimic other inflammatory gastrointestinal diseases.

Methods: From 1987 to 2003 at Chang-Gung Medical Center, 20 patients with CMV infections of the GI tract who were assessed using endoscopic examinations and diagnosed via pathologic studies were retrospectively reviewed.

Results: Most of the patients were adults with immunocompromised conditions (10/20).