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1.
Cureus ; 15(8): e44206, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37767268

RESUMO

Lymphangiectasia is the benign malformation of lymphatic channels associated with either focal or diffuse dilation of vessels and impaired lymph drainage. This malformation has the potential to create a cystic mass due to the accumulation of lymphatic fluid. While rare in adults, intussusception, the telescoping of the proximal bowel into the distal bowel, can be caused by a mass within the bowel. In this case, a near-obstructing cystic colon mass developed in a 74-year-old man; this was later found to be a large lymphangiectasia. In addition, this near-obstructing colonic lymphangiectasia served as the lead point in a colo-colonic intussusception. Due to this complication, the mass was immediately removed by a laparoscopic oncologic right-extended hemicolectomy which proved to be both diagnostic and therapeutic.

2.
Cureus ; 14(8): e28042, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36120228

RESUMO

Gastrointestinal neuroectodermal tumors (GNETs) are malignant tumors frequently arising within the muscularis propria of the gastrointestinal tract and often extend into the submucosa and subserosa. The stomach is the second most common site of incidence of GNETs after the small intestine. The most important differential of GNET is the clear cell sarcoma-gastrointestinal (CCS-GI). Both share similar morphological as well as molecular features and show S100 positivity; however, the lack of melanocytic differentiation in GNET distinguishes it from CCS-GI. Both typically show rearrangements of the EWSR1 gene, with t(12;22) (q13;q12) EWSR1-ATF1 or t(2;22) (q34;q12) EWSR1-CREB1 fusions. We present a case of a 71-year-old man with an incidentally discovered GNET in the gastric cardia and fundus.

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