A Rare Coexistence of Mesenteric Lymphangioma and Ulcerative Colitis, Obscuring the Right Cause of Symptoms.

Lymphangiomas are rare, cystic tumors representing congenital malformation of the lymphatic vessels. Mesenteric lymphangioma (ML) is a rare presentation of lymphangiomas. Misdiagnosis of ML can occur because of its rarity and resemblance to other entities. Ulcerative colitis (UC) is the most common type of inflammatory bowel disease (IBD), with an increasing incidence in pediatric populations. Here, we present a rare case of the coexistence of ML and UC. The uncommon radiological findings of ML can lead to overlooking UC; however, slight dissociation between clinical symptoms and radiological findings and the consequential decision to further investigations enabled us to reach an accurate diagnosis and avoid delaying the treatment of UC.

How do magnetic resonance cholangiopancreatography findings predict conversion from laparoscopic cholecystectomy for acute cholecystitis to bailout procedures?

BACKGROUND: Acute cholecystitis is one of the most prevalent surgical abdominal conditions. The Tokyo Guidelines describe the management of acute cholecystitis and recommend bailout procedures for "difficult" cholecystitis cases. This study aimed to identify risk factors for conversion from laparoscopic cholecystectomy to bailout procedures in patients with acute cholecystitis. METHODS: This retrospective cohort study was conducted at a single center between January 2017 and December 2021. Patients who underwent laparoscopic cholecystectomy for acute cholecystitis were enrolled and classified into bailout and non-bailout groups. The patients' characteristics and perioperative data were compared between the 2 groups. RESULTS: In total, 161 patients who underwent laparoscopic cholecystectomy for acute cholecystitis were reviewed. Fourteen were excluded because of a lack of preoperative magnetic resonance cholangiopancreatography; thus, 147 patients were enrolled (bailout group, 21; non-bailout group, 126). Age (74 vs 67 years old; P = .048), days from onset to surgery (3 vs 2 days; P = .02), or defect of cystic duct in magnetic resonance cholangiopancreatography (57% vs 29%; P = .02) were significantly associated with conversion to bailout procedures. In the logistic regression analysis, a defect of the cystic duct in magnetic resonance cholangiopancreatography was an independent predictor for bailout procedures (odds ratio, 2.793; P = .04). CONCLUSION: In this study, defect of the cystic duct in the magnetic resonance cholangiopancreatography can predict conversion to bailout procedures. To the best of our knowledge, this is the first report to describe magnetic resonance cholangiopancreatography finding of the cystic duct as a predictor of surgical difficulty in patients with acute cholecystitis.

A Rare Case of Severe Post-operative Pyoderma Gangrenosum After Surgery for Perforated Diverticulitis at the Sigmoid Colon.

Pyoderma gangrenosum (PG) is a nonbacterial ulcerating skin condition. It is typically associated with other systemic disorders. However, approximately 20%-30% of cases are idiopathic. Post-operative PG (PPG) is a rare type of PG with a rapidly expanding cutaneous ulcer at a surgical site and is often misdiagnosed as a wound infection. The difficulty in diagnosis can lead to unnecessary surgical interventions and delay in the treatment of PG. Herein, we present the case of a 68-year-old patient with severe PPG with no underlying diseases. He underwent an emergency laparotomy (Hartmann's procedure) for perforated diverticulitis. After the operation, systemic inflammatory response syndrome (SIRS) developed and the skin around the incisional wound, stoma, injection venous lines, and electrocardiogram monitoring pads gradually became erythematous. Skin biopsy and the absence of a source of infection confirmed the diagnosis of PG. Drug therapy for PG with steroids, and tumor necrosis factor-α inhibitors improved SIRS and the patient recovered.

Anatomical challenge: a rare coexistence of caecal cancer and isolated duodenal malrotation.

Intestinal malrotation is a congenital anomaly, treated mostly during childhood. A small number of cases are incidentally found in adulthood, during operation for other abdominal diseases, such as colon cancer.Here, we present a case of caecal cancer with isolated duodenal malrotation, a subtype of intestinal malrotation, discovered incidentally during the operation for the cancer. Although the anatomical abnormality made the operation more complicated, laparoscopic resection was safely performed with oncologically adequate lymphadenectomy, owing to intraoperative confirmation of anatomy and careful dissection.