RESUMO
Plexiform angiomyxoid myofibroblastic tumor (PAMT) is a rare mesenchymal tumor of the stomach. To date, about 40 cases of PAMT have been reported in the literature. This tumor is not specific in clinical manifestations and microscopically characterized by a plexiform growth pattern. Here, we report the case of an 11-year-old male patient who was diagnosed with PAMT. He had a complaint of right epigastric discomfort with episodic pain, gastroscopy displayed a submucosal bulge at the pylorus, and CT showed a mass in the right abdomen with uneven, delayed enhancement, and a partial gastrectomy revealed a tumor at the pylorus. Histologically, the tumor was multinodular and rich in blood vessels with thin wall; the interstitium had abundant myxomatous stroma; the tumor cells were spindle-shaped, star-shaped, or oval. Immunohistochemically, the tumor cells were positive for Calponin, Caldesmon, and SMA, but negative for CD34, ALK, S-100, desmin, CD117, and Dog-1. This patient was followed up for 12 months, and recurrence or metastasis was not observed. Diagn. Cytopathol. 2017;45:55-58. © 2016 Wiley Periodicals, Inc.
Assuntos
Tumores do Estroma Gastrointestinal/patologia , Miofibroma/patologia , Mixoma/patologia , Neoplasias Gástricas/patologia , Biomarcadores Tumorais/metabolismo , Criança , Tumores do Estroma Gastrointestinal/metabolismo , Humanos , Masculino , Miofibroma/metabolismo , Mixoma/metabolismo , Neoplasias Gástricas/metabolismoRESUMO
ObjectiveTo explore the value of CT virtual endoscopy in the treatment strategies in low rectal cancer surgery.MethodsFifty- seven cases of rectal cancer in Jining First Hospital were collected,preoperative rectum CT virtual endoscopy,detailed records of patients with rectal invasion and the circumstances surrounding lymph nodes were investigated.Differences were compared in patients after routine pathological examination.And the distance of the tumor from the anal margin was compared with the preoperative rectum on rectal examination and rectal CT virtual endoscopy.ResultsPreoperative rectum CT virtual endoscopy had no significant difference in evaluation of metastases of the surrounding lymph nodes.Compared with postoperative pathological examination( x2 =2.5,P ＞ 0.05 ),while had significant difference in evaluation in perirectal infiltration( x2 =4.44,P ＜ 0.05 ).Rectal examination and rectum CT virtual endoscopy had no significant difference judgement of the tumor from the anal margin ( P ＞ 0.05 ).ConclusionsCT virtual endoscopy has a great significance in the preoperative evaluation of rectal cancer surgical treatment strategies,which should be further studied.
