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Purpose: Positive peritoneal lavage cytology for gastric carcinoma cells (CY1) is considered distant metastasis and is classified as Stage IV. However, patients with CY1 comprise a heterogeneous population, and their prognosis varies greatly. The prognostic factors for gastric cancer patients with CY1 were retrospectively reviewed.Methods: The participants were 80 gastric cancer patients with CY1 in our institution encountered between 2005 and 2017. Prognostic factors were analyzed using univariate and multivariate analyses.Results: The operative procedure was distal gastrectomy for 30 patients, total gastrectomy for 27 patients, staging laparoscopy for 10 patients, gastrojejunostomy for 8 patients, and probe laparotomy for 5 patients. Other distant metastases were recognized in 36 patients. A multivariate analysis revealed that other distant metastases were the strongest independent risk factor for the overall survival (p < 0.0001). When the cohort was limited to CY1 patients without other distant metastases, cN2-3 (p = 0.01), the prognostic nutritional index (PNI) < 40 (p = 0.02) and Type 4 (p = 0.03) were independent risk factors according to a multivariate analysis. The survivals of patients with cN2-3 or PNI < 40 after gastrectomy were equivalent to those with other distant metastases, as assessed by log-rank analyses.Conclusions: The prognoses of CY1 gastric cancer patients with cN2-3 or PNI < 40 were poor, even after gastrectomy. [ABSTRACT FROM AUTHOR]

Undifferentiated gastric carcinoma is a rare histopathological type of cancer that does not show any differentiation toward adenocarcinoma or squamous cell carcinoma. It is thought to be highly malignant, and is associated with a poor prognosis. However, its clinical behavior has not yet been fully analyzed because of its rarity. We herein review the clinical characteristics and prognoses of patients with undifferentiated gastric carcinoma treated at our institutions. Among 2,651 gastric cancer patients, four (0.2 %) were histopathologically diagnosed to have undifferentiated carcinoma. These four patients included three males and one female. The median age of the patients was 60-year old (range 47-75). Three cases had distant metastases at diagnosis. One of these three cases was treated with chemotherapy alone, and the other two were treated with palliative gastrectomy and chemotherapy. The patient with no distant metastasis underwent curative gastrectomy and adjuvant chemotherapy. All patients died of cancer at a median of 5.4 (range 3.5-7.1) months after their diagnoses. [ABSTRACT FROM AUTHOR]

This report presents the case of a 66-year-old male with appendicular metastasis from hepatocellular carcinoma. He had a clinical history of right lobectomy of the liver after the diagnosis of hepatocellular carcinoma 3 years prior, and was admitted because of an asymptomatic appendiceal tumor detected by computed tomography. The appendiceal tumor was preoperatively suspected to be a recurrence of hepatocellular carcinoma, because of the patient's elevated level of serum α-fetoprotein and protein induced by vitamin K absence or antagonist II, and based on the magnetic resonance imaging findings. An appendectomy was thus performed, and the histopathological findings confirmed the diagnosis of a metastatic tumor from hepatocellular carcinoma. Appendicular metastasis is extremely rare. This is only the second case of a metastatic appendiceal tumor from hepatocellular carcinoma reported in the English literature. [ABSTRACT FROM AUTHOR]