Chyloperitoneum is the presence of chyle in the peritoneal cavity. This study focuses on acute chyloperitoneum, a rare condition with an unclear incidence due to limited number of reported cases in the literature. Here, we present a 24-year-old Saudi female with chyloperitoneum diagnosed intraoperatively during a laparoscopic appendectomy for acute appendicitis that was managed successfully with a low-fat diet and drainage, alongside a literature review to elucidate the condition\'s pathophysiology and therapeutic strategies. A conservative management approach is recommended for acute chyloperitoneum in the context of appendicitis, this includes intraperitoneal drainage, appendectomy when needed, and careful observation. Our proposed management strategy aligns with findings from the literature review and supports conservative management as a safe and effective treatment modality for this rare condition.

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Acute chylous peritonitis is an uncommon medical condition that can occur suddenly, resulting in the buildup of chylous fluid in the peritoneal cavity. It is considered idiopathic because the exact cause is often unknown. The symptoms of acute chylous idiopathic peritonitis can mimic other abdominal emergencies, making it challenging to diagnose and manage, requiring a multidisciplinary approach. We present a case report of acute idiopathic chylous peritonitis miming acute abdomen, how was successfully treated with surgery, and provide a comprehensive review of the available literature on this topic. Chylous peritonitis is a rare condition whose clinical presentation mimics an acute abdomen. It is necessary to undertake careful exploration. An emergent laparotomy is indicated to treat the peritonitis and search for and treat the underlying cause.

Introduction: Chyloperitoneum arises from lymph leakage into the abdominal cavity, leading to an accumulation of milky fluid rich in triglycerides. Diagnosis can be challenging, and mortality rates vary depending on the underlying cause, with intestinal volvulus being just one potential acute cause. Despite its rarity, our case series highlights chyloperitoneum associated with non-ischemic small bowel volvulus. The aims of our study include assessing the incidence of this association and evaluating diagnostic and therapeutic approaches. Material and Methods: We present two cases of acute abdominal peritonitis with suspected small bowel volvulus identified via contrast-enhanced computed tomography (CT). Emergency laparotomy revealed milky-free fluid and bowel volvulus. Additionally, we conducted a systematic review up to 31 October 2023, identifying 15 previously reported cases of small bowel volvulus and chyloperitoneum in adults (via the PRISMA scheme). Conclusions: Clarifying the etiopathogenetic mechanism of chyloperitoneum requires specific diagnostic tools. Magnetic resonance imaging (MRI) may be useful in non-emergency situations, while contrast-enhanced CT is employed in emergencies. Although small bowel volvulus infrequently causes chyloperitoneum, prompt treatment is necessary. The volvulus determines lymphatic flow obstruction at the base of the mesentery, with exudation and chyle accumulation in the abdominal cavity. Derotation of the volvulus alone may resolve chyloperitoneum without intestinal ischemia.

BACKGROUND: Chylous ascites is a rare but morbid condition following removal of residual mass in non-seminomatous germ cell tumours following chemotherapy.
METHODS: We hereby present the case of a 20-year-old man who had undergone RPLND with complete surgical excision. A lesion of the Cisterna chyli complicated the operation. The post-operative course was marked by the appearance of chylous ascites. The conservative management strategy for this complication was successful, but only after a month.
UNASSIGNED: Chylous ascites is a rare but morbid condition following removal of residual mass in non-seminomatous germ cell tumours following chemotherapy. Conservative management based on a high-protein diet with fat restriction and medium-chain triglyceride supplementation, and somatostatine are usually successful. Surgery should be reserved for situations that are refractory to treatment.
CONCLUSIONS: We report our successful management and, we also analysed the different management protocols using our experience and review of the literature.

BACKGROUND: Chyle leakage/ascites after surgical resection of neuroblastic tumors may delay the start of chemotherapy and worsen prognosis. Previous studies have reported a highly variable incidence and risk factors remain largely unknown. This study aims to analyze the true incidence of chyle leaks and ascites and seeks to identify risk factors and optimal treatment strategies.
METHODS: Medline/Embase databases were searched according to PRISMA guidelines. Literature reviews, case reports, and non-English papers were excluded. Data were extracted independently following paper selection by 2 authors.
RESULTS: The final analysis yielded 15 studies with N = 1468 patients. Chylous ascites was recorded postoperatively in 171 patients (12%). Most patients experiencing chyle leaks were successfully treated conservatively with drainage, bowel rest, parenteral nutrition and octreotide with variable combinations of these treatment options. 7/171 (4%) patients required operative exploration to control troublesome persistent chyle leaks. In risk factor analysis, higher tumor stage was significantly associated with the risk of chyle leak (P < 0.0001) whereas no correlation was observed with adrenal vs non-adrenal tumor location, INRG risk groups and tumor laterality.
CONCLUSIONS: Chyle leakage after surgery for neuroblastic tumors is a common morbid complication occurring in some 12% of patients. Higher INSS tumor stage portends greater risk(s). Conservative therapy strategies appear successful in the majority of cases. To avert this complication meticulous mesenteric lymphatic ligation is recommended especially for those patients with higher tumor stage(s) requiring extensive radical surgery including retroperitoneal lymph node resection.
METHODS: III.
METHODS: Systematic review.

Chylothorax without chylous ascites after liver transplant is rare. We present 2 cases of isolated chylothorax after liver transplant and a literature review.
We compiled a literature review of chylothorax cases after abdominal surgery and analyzed the cases related to liver transplant. The demographic information, follow-up results, and treatment details of our 2 cases of chylothorax after living-donor pediatric livertransplant were discussed.
An 8-month-old child and a 15-month-old child with cholestatic liver disease and urea cycle defect, respectively, underwent living-donor left lateral segment liver transplant. Patients who presented with chylothorax after discharge were treated conservatively.
Isolated chylothorax is rare complication after abdominal surgery, which is mostly possible to treat with conservative methods. Interventional procedures and a surgical approach should only be performed in resistant cases when conservative treatment has failed.

BACKGROUND Chylous ascites (chyloperitoneum), a condition arising from lymphatic leakage in the peritoneal cavity, is rare in liver cirrhosis patients, accounting for less than 1% of cases. Treatment typically involves therapeutic paracentesis, dietary modifications, a low-fat, high-protein diet, and medium-chain triglyceride (MCT) supplementation. Orlistat, a fat absorption inhibitor, has been reported to show potential efficacy in treating chylous ascites. CASE REPORT We detail the case of a 59-year-old male patient admitted for decompensated liver disease and worsening ascites. Diagnostic paracentesis identified chylous ascites, indicated by a 3.5 mmol/L triglyceride level. Despite administering therapeutic paracentesis, dietary modifications, MCT supplementation, Spironolactone, and Terlipressin for a presumed hepatorenal syndrome, the patient\'s ascites remained chylous for two weeks. On administering orlistat, a significant reduction in ascites volume and chylous content was observed, with triglyceride levels dropping to 0.7 mmol/L. CONCLUSIONS Our case illustrates the potential of orlistat in managing chylous ascites in liver cirrhosis patients, marking only the second such case reported in the existing literature. It encourages further exploration of orlistat\'s therapeutic potential in treating chylous ascites.

Chylous ascites (CA) are a rare finding of triglyceride-rich peritoneal fluid within the abdominal cavity. Malignancy, cirrhosis, and trauma after abdominal surgery are the leading causes of CA in adults. Currently, there are no published guidelines on the management of CA. This report describes a case of an 18-year-old female presenting with abdominal pain and distention following median arcuate ligament syndrome (MALS) decompression. A computed tomography (CT) of the abdomen and pelvis showed large-volume ascites with normal hepatic morphology. Paracentesis and ascitic fluid studies were positive for milky fluid rich in triglyceride. Her recent history of MALS decompression revealed the cause of her acute CA to be a postoperative complication from her abdominal surgery. This case highlights the diverse etiology of ascites and the importance of a careful history and physical examination when evaluating adults with ascites.

Chyloperitoneum (chylous ascites) is a rare complication of peritoneal dialysis (PD). Its causes may be traumatic and nontraumatic, associated with neoplastic disease, autoimmune disease, retroperitoneal fibrosis, or rarely calcium antagonist use. We describe six cases of chyloperitoneum occurring in patients on PD as a sequel to calcium channel blocker use. The dialysis modality was automated PD (two patients) and continuous ambulatory PD (the rest of the patients). The duration of PD ranged from a few days to 8 years. All patients had a cloudy peritoneal dialysate, characterized by a negative leukocyte count and sterile culture tests for common germs and fungi. Except for in one case, the cloudy peritoneal dialysate appeared shortly after the initiation of calcium channel blockers (manidipine, n = 2; lercanidipine, n = 4), and cleared up within 24-72 h after withdrawal of the drug. In one case in which treatment with manidipine was resumed, peritoneal dialysate clouding reappeared. Though turbidity of PD effluent is due in most cases to infectious peritonitis, there are other differential causes including chyloperitoneum. Although uncommon, chyloperitoneum in these patients may be secondary to the use of calcium channel blockers. Being aware of this association can lead to prompt resolution by suspension of the potentially offending drug, avoiding stressful situations for the patient such as hospitalization and invasive diagnostic procedures.