Clinical Outcomes after Surgery for Linitis Plastica of the Stomach: Analysis of a Population Cancer Registry.

Linitis plastica (LP), a subset of gastric adenocarcinoma (GA), has been considered as a fatal disease with few management options. Little evidence has been reported regarding the role for surgical therapy in treating LP. A retrospective review of GA patients with LP from the surveillance, epidemiology, and end results database (2004-2009) was performed. 29,440 patients with GA were identified, of whom 948 (3.2%) had LP. After matching for American Joint Commission on Cancer (AJCC) stage, LP patients had significantly worse 5-year disease specific survival (DSS) compared with GA (6 vs 34%, P < 0.001). For potentially resectable LP patients (i.e., stage I-III), 5-year DSS was 0 per cent for no treatment and for radiation therapy alone, 18 per cent for both and surgery and radiation, and 20 per cent for surgery alone(P < 0.001). LP is a marker of poor survival in patients with GA. However, surgical resection provides the best oncologic outcomes in these patients with a 20 per cent 5-year DSS in patients with loco-regional disease.

Survival following operative management of gastric linitis plastica compared with non-operative management.

INTRODUCTION Linitis plastica (LP) is a particular subtype of diffuse gastric cancer and is thought to have a very poor prognosis. The operative approach in patients with LP has historically been questioned because of the poor outcomes. The aim of this study was to determine the current outcomes in LP patients who undergo radical resection. METHODS Patients with a new diagnosis of diffuse gastric adenocarcinoma between 2006 and 2010 were identified from a regional pathology database. LP was diagnosed based on histological, radiological and endoscopic findings. The patients' health records were analysed retrospectively and mortality data obtained from a regional cancer registry. The primary outcome assessed was overall survival. RESULTS Overall, 273 patients with diffuse gastric cancer were identified; 54 of these were diagnosed with LP. In the LP cohort, 17 patients underwent resection compared with 95 of the 219 patients in the non-LP group. The median survival following resection in patients with LP was 16.7 months (95% confidence interval [CI]: 8.3-25.1) while in LP patients who did not have surgery it was 3.6 months (95% CI: 2.2-4.9 months) (p<0.001). There was no significant difference in survival following resection between those with LP and those with non-LP diffuse gastric adenocarcinoma (median: 23.9 months, 95% CI: 15.8-32.1 months) (p=0.331). CONCLUSIONS Survival following resection in patients with LP is not significantly different to that in those with non-LP diffuse gastric cancer. A preoperative diagnosis of LP should not be a reason for denying radical treatment and such individuals should be managed in the same way as any other patient with diffuse gastric cancer.

Prognostic factors in patients with diffuse type gastric cancer (linitis plastica) after operative treatment.

OBJECTIVE: Treatment options for patients with diffuse type gastric cancer (linitis plastica) are discussed controversial. It is sometimes discussed that these patients should be treated primarily in palliative intention conservative without resection. METHODS: In a single-center analysis, we investigated 120 patients with diffuse type gastric cancer. All patients underwent a total gastrectomy, 45 patients even a multivisceral resection because of infiltrating growth, or metastases. Serum tumor marker CEA, CA 72-4, and CA 19-9 were recorded in all patients before surgery. An immunocytochemical detection of free peritoneal tumor cells (FPTC) using Ber-EP4 antibody was correlated with tumor stage and survival. Median follow-up time was 38 months. RESULTS: Complete resection rate was 31% (n = 37). 61% (n = 73) of all patients had already distant metastases at the time of surgery, 80% of them peritoneal carcinomatosis. Median survival for the whole group was 8 months, after complete resection 17 months. Lavage cytology, distant metastases, resection rate, and CA19-9 levels had significant influence on survival. CONCLUSION: A significant survival advantage for patients with diffuse type gastric cancer can only be achived after complete resection. We could define a subset of patients with an extremely poor prognosis even after surgical resection. Meticulous preoperative staging, including a diagnostic laparoscopy to exclude peritoneal carcinomatosis and free peritoneal tumor cells before resection should be mandatory in these patients.

Secondary linitis plastica of the rectum: EUS features and tissue diagnosis (with video).

BACKGROUND: Luminal metastases to the GI tract may be seen at the time of the primary diagnosis or may represent evidence of a distant recurrence. OBJECTIVES: To determine the prevalence of rectal-wall metastases in patients undergoing an EUS and to describe the EUS features and yield of EUS-guided FNA (EUS-FNA) and Trucut biopsy (TCB). DESIGN: A case series. SETTING: A single tertiary-referral center. PATIENTS: Patients undergoing lower GI (LGI) EUS from July 1, 2005, to October 31, 2007. INTERVENTION: EUS-FNA and/or TCB. MAIN OUTCOME MEASUREMENTS: EUS features and cytologic and/or histologic confirmation of secondary rectal linitis plastica. RESULTS: Over the 28-month period, an LGI-EUS was performed in 598 patients with presumed primary rectal cancer, of whom 6 (1%) were diagnosed with rectal-wall metastases. The EUS features were that of diffuse, circumferential, hypoechoic wall-thickening that mimics that of linitis plastica, breaching the muscularis propria in all cases. EUS-FNA and/or TCB of the rectal wall or perirectal lymph node established a diagnosis in all cases. The primary cancers originated from the bladder (n = 3), breast (n = 1), stomach (n = 1), and a right forearm cutaneous melanoma (n = 1). The time interval from the initial primary cancer diagnosis to that of GI-tract rectal metastasis ranged from 0 days (simultaneous diagnoses) to 119 months (mean +/- SD 49 +/- 43 months). LIMITATIONS: Although firm EUS criteria of rectal-wall metastases cannot be established based on 6 patients alone, certain features may prove useful for the diagnosis in the clinical practice. CONCLUSIONS: EUS-FNA and/or TCB can confirm the diagnosis of secondary linitis plastica of the rectum.

TS-1 as first-line therapy for gastric linitis plastica: historical control study.

Gastric linitis plastica (LP) is usually found as an advanced gastric cancer and has a poor prognosis. No sufficiently effective chemotherapy has been reported. In recent years, TS-1 has yielded a high response rate for advanced gastric cancers and favorable treatment results have also been suggested for gastric LP. We retrospectively compared and discussed anti-tumor effects and survival time for 62 consecutive patients with unresectable gastric LP who underwent chemotherapy at Kitasato University East Hospital between November 1995 and December 2002. They were divided into two groups: 19 patients given chemotherapy including TS-1 as first-line therapy (TS-1 group), and 43 patients given chemotherapy mainly with 5-fluorouracil, cisplatin, methotrexate and mitomycin C (non-TS-1 group). The overall response was 57.9% [95% confidence interval (CI) 35.7-80.1%] in the TS-1 group, which was significantly greater than the 27.9% (95% CI 14.5-41.3%) of the non-TS-1 group (P < 0.01). The median survival time was 402 days (95% CI 251-553 days) in the TS-1 group, which was also significantly longer than the non-TS-1 group (213 days, 95% CI 165-261 days, P < 0.01). Neutropenia and febrile neutropenia of grade 3 or higher were observed in 21.1 and 5.2%, respectively, in the TS-1 group, which were lower than the values of 37.2 and 20.9% in the non-TS-1 group. We conclude that greater anti-tumor effects and longer survival time can be expected from chemotherapy including TS-1 for gastric LP compared with conventional chemotherapy.

Study of survival and prognostic factors in patients undergoing resection for gastric linitis plastica: a review of 86 cases.

A retrospective study was conducted in a series of 86 patients (51 men and 35 women; mean age 63.4 years) treated from 1979 to 1995 for linitis plastica of the stomach (LP). The mean interval between the first manifestations and surgery was 3.5 months. The most frequent clinical sign was epigastric pain which occurred in 80.4% of cases. Biopsies were positive in 75.6% of cases. Typical features of LP were found in only 46% of esogastric barium enemas and 11.8% of upper gastrofiberscopic examinations. Seventy-four patients had surgical excision (51 total and 23 partial gastrectomies). There were 6 (7%) postoperative deaths and 10 (11.6%) surgical complications. Node involvement was found in 54 (72.9%) patients. Overall actuarial survival (n = 86) was 50% at 12 months, 40% at 18 months and 7.5% at 84 months. Survival did not depend on the delay in diagnosis, histological analysis of the extremities of the excised piece, associated tissue differentiation, node involvement or the type of surgical excision. The prognosis differed according to tumor height (P<0.01) and involvement of the deep stomach wall (P<0.001). No independent prognostic factor was found in multivariate analysis. Surgery remains the sole possibility for curative therapy in these patients.

Endoscopic ultrasonography in rectal linitis plastica.

BACKGROUND: Rectal linitis plastica (RLP) is a rare tumor with a poor prognosis. RLP can be a primary tumor, secondary to gastric linitis, or a metastatic form of breast or prostate carcinoma. Diagnosis is difficult because of nonspecific clinical and endoscopic findings and frequent negative biopsies (50%). The aim of this study was to evaluate the endosonographic appearance of RLP and to study the usefulness of endoscopic ultrasonography (EUS) in the follow-up of patients with RLP. METHODS: Twenty-two video-recorded EUS examinations performed in 11 patients with histologically proven RLP were retrospectively studied. Response to conservative treatment was evaluated in three patients with secondary RLP. RESULTS: In every case of RLP, EUS showed a circumferential thickening of the rectal wall (mean 13 mm); the thickening was mainly seen in the submucosa and the muscularis propria. In nine cases EUS showed signs of locoregional involvement (perirectal fat infiltration [n = 6], ascites [n = 5], lymph nodes [n = 3]) which was not seen by CT. In follow-up evaluations, EUS showed a lack of response to treatment in two patients with RLP secondary to gastric linitis. In the remaining patient with RLP secondary to breast carcinoma, EUS at first showed no response. The chemotherapy protocol was modified, and then improvement became evident at EUS. CONCLUSIONS: RLP shows typical features of rectal EUS that may assist in the diagnosis of this rare disease. Moreover, EUS can be useful in evaluating the response of this disease to treatment.

A review of carcinoma of the stomach at a tertiary care referral hospital.

BACKGROUND: Carcinoma of the stomach continues to cause a significant mortality in the United States. We reviewed the characteristics, treatment modalities, and survival of a group of patients with this cancer at a tertiary care referral hospital. MATERIALS AND METHODS: A retrospective computer based review of all patients with a diagnosis of carcinoma of the stomach in the Ohio State University (OSU) tumor registry was made. One hundred ninety-two analytical cases were found and the data was entered into a computerized database and analyzed. RESULTS: The overall median survival in this series of patients is 10 months with a median survival of 16 months (n.s.) in patients who underwent curative surgery (50% of the patients). There was an increased number of cardia lesion (37%) predominately in male patients (P < 0.05). A significantly greater number of female patients presented with linitis plastica and male patients with adenocarcinoma, although there was no difference in the operability, types of operations, and survival between the genders. Patients with signet ring cell cancer were significantly younger than the other two histological types reviewed but this did not alter outcome. CONCLUSION: Carcinoma of the stomach, despite newer image modalities, continues to present at advanced stages at time of diagnosis with an overall dismal prognosis. The increased incidence of cardia lesions noted require innovative therapies if any progress is to be made.

Gastric carcinoma: 30-year review.

The records of 1030 patients with gastric carcinoma seen between 1941 and 1970 were analysed. A 10-year follow-up was available for 1024. The overall operability and resectability rates were 80.9% and 53.5% respectively, and in the two decades 1951 to 1960 and 1961 to 1970, the rates increased significantly, as did the subtotal gastrectomy rate of 46.9%. Subtotal resection for cure was done in 59.5%, and for palliation in 40.5%. Fifty-six patients underwent a total gastrectomy. There was no significant increase in consecutive decades in either overall 5-year survival or survival following subtotal gastrectomy. The 5- and 10-year survival rates of 15.1% and 6.6%. Of the 5-year survivors, 54% had no lymphnode involvement and 35.2% had nodes positive for tumour spread. Gastroesophagectomy was associated with a high morbidity and extremely low survival. Of 56 patients having a total gastrectomy, 37 lived 1 year or more while only 5 survived 5 or more years. Linitis plastica occurred with equal frequency in men and women. Operability and resectability rates were lower and there was a 90.6% 1-year death rate.