tailgut cyst is a very rare lesion of the retrorectal space seemingly derived from embryonic remnants of the tail gut which often causes rectal signs and symptoms. a unique case of this lesion presenting as a subcutaneous mass lateral to the coccyx is hereby described

Intravascular papillary endothelial hyperplasia (IPEH) is an uncommon benign vascular disease characterized by endothelial cell proliferation and papillary formation within the lumen of blood vessels arising from an organizing thrombus. The occurrence of this uncommon lesion is about 2% of all vascular tumors. IPEH mostly occurs in the 5th decade of life, and there is no gender or age predilect...

we report a rare case of congenital foregut cysts (esophageal bronchogenic cyst) in a young woman with history of long term dysphagia. she presented with dysphagia and upper gastrointestinal endoscopy showed bulge submucosal lesion in the distal of the esophagus. endoscopic ultrasound showed a 3×3 cm cystic lesion suggestive for esophageal duplication or bronchogenic cyst. computed tomography o...

intraluminal small bowel hematoma has been rarely reported in children, as a rare cause of small bowel obstruction. we present a case of an intraluminal ileal hematoma presenting as small bowel obstruction in a child. computed tomography (ct) indicated a large intraluminal hyperdense lesion in the distal ileum as the cause of small bowel obstruction. abdominal ultrasonography (us) showed an ech...

a 50-year-old male underwent a check-up for an insurance company. chest x-ray revealed a large ball-like lesion in the posterior mediastinum. the finding was confirmed by computed tomography (ct) scan (figure 1). the patient was referred to our center, where he had a successful mass removal surgery (figure 2). pathology identified the mass as neurinoma.

 Carcinosarcoma is a rare type of cancer that is composed of a mixture of sarcomatous and carcinomatous elements. Pulmonary carcinosarcoma has a 25% five-year survival rate with a prognosis poorer than other non-small cell lung carcinomas. Herein, we report a case of pulmonary carcinosarcoma and its 18F-FDG PET/CT findings. A 61-year-old male patient presented with brain symptoms, including hea...

Mixing of active neutrinos with sterile ones generate “induced” contributions to the mass matrix of active neutrinos ∼ mS sin θaS , where mS is the Majorana mass of the sterile neutrino and θaS is the active-sterile mixing angle. We study possible effects of the induced matrix which can modify substantially the implications of neutrino oscillation results. We have identified the regions of mS a...

Introduction: Papillary thyroid carcinoma (PTC) constitutes 75–85% of all thyroid cancers. PTC usually presents as a subtle, commonly slow-growing, painless thyroid mass or a solitary nodule in the neck. This presentation of a cystic neck lump, without the presence of a thyroid nodule, may imitate the course of a benign disease, thus delaying diagnosis and proper treatment.  Case Report: Thr...