Paria Dehghanian

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BACKGROUND Langerhans cell histiocytosis (LCH) is a rare histiocytic proliferation of unknown etiology. It is characterized by granuloma-like proliferation of Langerhans-type dendritic cells and mainly affects young children. Although multiple investigators have suggested the possible role of viruses, such as Epstein-Barr virus (EBV), human herpesvirus-6(More)
Biliary leakage after T-tube removal is an important complication which can be lethal especially in patients who received immunosuppressant agents. The purpose of the study is to determine a method which can evaluate the completion of tract formation in high-risk patients. Participants include 46 patients who were candidates for open cholecystectomy and(More)
INTRODUCTION Although perforation of the esophagus, in the anterior cervical spine fixation, is well established, cases with delayed onset, especially cases that present pseudodiverticulum, are not common. In addition, management of the perforation in this situation is debated. CASE REPORT Delayed esophageal pseudodiverticulum was managed in two patients(More)
Megacystis microcolon intestinal hypoperistalsis syndrome (MMIHS) is a multisystemic disorder in which impaired intestinal motor activity causes recurrent symptoms of intestinal obstruction in the absence of mechanical occlusion, associated with bladder distention without distal obstruction of the urinary tract. MMIHS and prune belly syndrome may overlap in(More)
BACKGROUND Langerhans cell histiocytosis is a rare proliferative histiocytic disease of unknown etiology. Histologically, it is characterized by granuloma-like proliferation of Langerhans-type dendritic cells derived from bone marrow. Many investigators have suggested the possible role of viruses such as Epstein-Barr virus, human herpesvirus-6 (HHV-6),(More)
Clear cell sarcoma of the kidney (CCSK) is a rare renal neoplasm of paediatrics, making up about 3% of all renal tumours in paediatrics, with a high tendency for developing bone metastasis. A seven year-old boy was referred to our clinic with two firm, large masses over the manubrium of the sternum and right frontal area, which pathologically were confirmed(More)
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