exertional dyspnea, shortness of breath and a dry cough. Clinical examination revealed signs of a leftsided pleural effusion. Chest-wall expansion and basal air entry were reduced; percussion over the lower chest produced a dull note. A posteroanterior chest film demonstrated a left pericardial mass (Fig. 1, arrows). Computed tomography of the chest disclosed an extracardiac mass filled with fl...

A Mesenteric cyst are rare abdominal tumours with an incidence quoted in literature of 1 in 105000 to 250000 hospitalized adult patients [1]. The origin of cyst can be lymphatic, mesothelial, enteric, urogenital, or dermoid. Symptomatic presentation of mesenteric cyst in adult patients is rare. Moreover, presentation of a soft tissue tumour in mesentery is itself rare and presentation mimicking...

Neurenteric cyst in the thoracic cavity may produce a myriad of clinical features. We report a 7-month-old girl who presented with significant bleeding per rectum. On imaging, a mediastinal cystic structure with air-fluid levels was evident with cervico-thoracic vertebral anomalies. The cyst was excised and histopathology showed intestinal mucosal lining with heterotopic pancreatic tissue confi...

Nasolabial cyst is a rare non-odontogenic, soft-tissue, developmental cyst occurring inferior to the nasal alar region. The patient usually presents with a slowly enlarging asymptomatic swelling, typically without radiographic abnormalities. This paper documents the presentation and management of a 46-year-old woman with a nasolabial cyst. The histopathologic features, differential diagnosis, t...

Thyroglossal duct cyst (TDC) is a developmental anomaly that usually appears in early childhood. The common presentation is midline swelling of the neck, which moves with both tongue protrusion and deglutition. Diagnosis is usually clinical and radiological. Fine needle aspiration cytology (FNAC) can be used as a tool for the exclusion of malignancy in adult patients. In some cases thyroid scan...

Hydatid cyst, the larval stage of Echinococcus spp., is a common parasitic disease in Iran. The liver and the lungs are the most commonly involved organs. Hydatid cysts have also been reported in bones and soft tissues such as muscle, brain tissue, spleen, thyroid and even in the heart. Hydatid cyst of the inguinal area, resembling a hernia is a rarity presenting at an unusual site. A hyper...

We report the case of a 25-year-old man who had a penetrating keratoplasty for keratoconus. A year and a half after surgery a cyst was noted in the anterior chamber, which was observed to enlarge over six months. Because of anxiety about endothelial touch, it was removed surgically. Histologically the cyst was composed of stratified, non-keratinized squamous epithelium attached to loose fibrova...

The Toxoplasma biology that underlies human chronic infection is developmental conversion of the acute tachyzoite stage into the latent bradyzoite stage. We investigated the roles of two alkaline-stress-induced ApiAP2 transcription factors, AP2IV-3 and AP2IX-9, in bradyzoite development. These factors were expressed in two overlapping waves during bradyzoite development, with AP2IX-9 increasing...

Toxoplasma gondii is a protozoan parasite of great importance to human and animal health. In the host, this obligate intracellular parasite persists as a tissue cyst that is imperceptible to the immune response and unaffected by current therapies. The tissue cysts facilitate transmission through predation and give rise to chronic cycles of toxoplasmosis in immunocompromised patients. Transcript...