[Gastric bronchogenic cysts. An unusual location].

Bronchogenic cysts are rare benign lesions that arise during embryogenesis of the primitive proximal intestine and are located primarily in the lung. They are lined with cuboid or columnar pseudostratified and ciliated epithelium and have elastic fibers, smooth muscle, bronchial glands and cartilage in their walls. Gastric bronchogenic cysts are extremely rare with very few reported cases.

[Dendritic infraclavicular fibromyxolipoma: At the boundary between spindle cell lipoma and solitary fibrous tumour].

Dendritic fibromyxolipoma (DFML) is a rare soft tissue tumor recently described with only 27 cases reported in the literature. None of them have shown recurrence or metastasis after excision. Histologically it is composed of small stellate or spindle cells in a myxoid stroma with abundant collagen bundles mixed with mature adipose tissue.

Histological Features, p53, c-Kit, and Poliomavirus Status and Impact on Survival in Merkel Cell Carcinoma Patients.

Background: Merkel cell carcinoma (MCC) is a rare and aggressive malignancy from neuroendocrine cells in the skin. Despite being one of the most life-threatening of skin cancers, little is known about the potential signaling mechanism that drives carcinogenesis in MCC. The purpose of this study is to assess the impact of Merkel cell polyomavirus (MCPyV), p53, and c-kit on the histological features and clinical prognosis of MCC treated in our regional hospitals.

Molluscum Contagiosum Infection Involving a Benign Epidermoid Cyst in an Immunocompetent Patient.

A 78-year-old man presented with a round- to oval-shaped nodule on his right eyebrow. The lesion first developed 5 years ago as a small solitary white nodule and subsequently enlarged over the past 2 years. His medical history was unremarkable.

Spontaneous hemoperitoneum secondary to retroperitoneal tumor rupture.

Objective: To report a case of GIST type retroperitoneal tumor with spontaneous rupture to the abdominal cavity causing acute abdomen secondary to hemoperitoneum.

Methods/results: We report the case of an 84 year-old man with history of BPH and chronic atrial fibrillation. He presented to the Emergency Department with diffuse abdominal pain, syncope and accompanying vegetative symptoms.