Unicentric Castleman's disease in the female pelvis.

Castleman's disease (CD) or angiofollicular lymphoid hyperplasia is a rare disorder with unknown aetiology that can easily be misdiagnosed as lymphoma, neoplasm, or infection. Diagnosis is challenging due to its non-specific symptoms and radiologic signs as well as its rarity. We report a case of a middle-aged woman with a mass adjacent to the uterus that was accidentally detected by ultrasound; it was believed to be of ovarian origin. Subsequently, the patient underwent a successful tumorectomy. Pathological examination confirmed the hyaline-vascular type of CD in a pelvic location. This was a typical case of an asymptomatic unicentric and hyaline-vascular type of CD.

The value of multidetector-row computed tomography in lymph node staging of gastric cancer: a preliminary Vietnamese study.

INTRODUCTION: Gastric cancer (GC) is the fourth most common malignant disease in the world, following breast cancer, colorectal cancer, and lung cancer. This study aimed to evaluate the usefulness of multidetector-row computed tomography (MDCT) in identifying the metastatic lymph node of GC. MATERIAL AND METHODS: A cross-sectional study was performed after receiving approval by the institutional review board. A total of 88 patients with GC, who underwent radical gastrectomy, were examined by MDCT. Categorical variables were compared using Fisher's exact test. The discriminating ability of lymph node size was determined according to an area under the receiver operating curve(AUROC) analysis, and the optimal cut-off point was determined. RESULTS: The proportion of metastatic lymph node patients in the proximal group (32.3%) was significantly higher than that in the distal group (18.4%). T categorisation and lymph node sizes were significantly different between the non-metastatic lymph node and metastatic lymph node groups. The AUROC for lymph node size was 0.738, with an optimal cut-off point of 7.5 mm,producing a sensitivity of 71.5% and a specificity of 70.5%. CONCLUSIONS: MDCT displayed medium accuracy for the determination of metastatic lymph nodes and N categorisation. Based on our findings, although MDCT is generally the first choice for preoperative assessments in GC patients, other diagnostic modalities should supplement MDCT in order to achieve more precise N staging.