Performance of Multiparametric Functional Imaging to Assess Peritoneal Tumor Burden in Ovarian Cancer.

PURPOSE: The aim of the study was to evaluate the clinical utility of pretreatment 18F-FDG PET/CT with quantitative evaluation of peritoneal metabolic cartography in relation to staging laparoscopy for ovarian carcinomatosis. PATIENTS AND METHODS: A retrospective review of prospectively collected data from 84 patients with FIGO (International Federation of Gynecology and Obstetrics) stage IIIC to IV ovarian cancer was carried out. All patients had a double-blinded 18F-FDG PET/CT review. Discriminant capacity of metabolic parameters to identify peritoneal carcinomatosis in the 13 abdominal regions according to the peritoneal cancer index was estimated with area under the receiver operating characteristic curve (AUC). RESULTS: The metabolic parameter showing the best trade-off between sensitivity and specificity to predict peritoneal extension compared with peritoneal cancer index score was the metabolic tumor volume (MTV), with a Spearman ρ equal to 0.380 (P < 0.001). The AUC of MTV to diagnose peritoneal involvement in the upper abdomen (regions 1, 2, and 3) ranged from 0.740 to 0.765. MTV AUC values were lower in the small bowel regions (9-12), ranging from 0.591 to 0.681, and decreased to 0.487 in the pelvic region 6. 18F-FDG PET/CT also improved the detection of extra-abdominal disease, upstaging 35 patients (41.6%) from stage IIIC to IV compared with CT alone and leading to treatment modification in more than one third of patients. CONCLUSIONS: 18F-FDG PET/CT metrics are highly accurate to reflect peritoneal tumor burden, with variable diagnostic value depending on the anatomic region. MTV is the most representative metabolic parameter to assess peritoneal tumor extension.

Vaginal reconstruction with pedicled vertical deep inferior epigastric perforator flap (diep) after pelvic exenteration. A consecutive case series.

Vaginal reconstruction after pelvic exenteration (PE) represents a challenge for the oncologic surgeon. Since the introduction of perforator flaps, using pedicled vertical DIEP (deep inferior epigastric perforator) flap allows to reduce the donor site complication rate. From November 2012 to December 2014, 27 PEs were performed in our institution. 13 patients who underwent PE with vaginal reconstruction and programmed DIEP procedure for gynecologic malignancies were registered. Nine patients underwent PE for recurrent disease and four for primary treatment. Six of the 13 patients have a preoperative fistula. Anterior PE was performed in 10 patients, and total PE in 3 patients. A vertical DIEP flap was performed in 10 patients using one or two medial perforators. The reasons for abortion of vertical DIEP flap procedure were: failure to localizing perforator vessels in two cases, and unavailability of plastic surgeon in one case. A vertical fascia-sparring rectus abdominis myocutaneous flap was then harvested. Median length of surgery was 335min, and 60min for DIEP harvesting and vaginal reconstruction. No flap necrosis occurred. One patient in the VRAM (vertical rectus abdominis myocutaneous) group experienced a late incisional hernia and one patient in the DIEP flap group required revision for vaginal stenosis. In our experience, DIEP flap represents our preferred choice of flap for circumferential vaginal reconstruction after PE. To achieve a high reproducibility, the technically demanding pedicled vertical DIEP flap has to be harvested by a trained surgeon, after strict evaluation of the preoperative imaging with identification and localization of perforator vessels.

Cytoreductive surgery with hyperthermic intraperitoneal chemotherapy for the treatment of endometrial cancer with peritoneal carcinomatosis.

OBJECTIVE: To investigate the benefit of cytoreductive surgery combined with hyperthermic intraperitoneal chemotherapy (HIPEC) for the treatment of endometrial peritoneal carcinomatosis. STUDY DESIGN: Preoperative, intraoperative and postoperative data were collected prospectively for 13 patients treated in our University hospital. RESULTS: Of the thirteen patients treated, one patient was lost to follow up. Three patients died within the first twelve months of treatment, and two patients died at respectively 12.4 and 19.4 months after the HIPEC procedure. Seven patients are alive, four of them without recurrence, between 1.5 and 124.8 months after surgery. The Peritoneal Cancer Index (PCI) and the Completeness of Cytoreduction-Score (CC-S) are prognostic factors for survival after HIPEC treatment for peritoneal carcinomatosis of endometrial origin. CONCLUSIONS: The significant survival time in selected patients should lead to a study of the management of peritoneal carcinomatosis of endometrial origin in a larger number of cases, and justifies a clinical trial on a larger scale.