The implications and management of complex biliary injuries at a tertiary hepatobiliary specialty center.

Injuries of the biliary tract and complex injuries involving vascular and parenchymal tissue can be detrimental despite the improved use of laparoscopy. Complex biliary injuries are variable depending on the type of injury as well as patient and surgeon factors. We present four cases of complex biliary injuries at our tertiary referral center with hepatobiliary expertise: biliary stenosis with obstruction, double duct system anatomy, combined right hepatic arterial transection and biliary duct injury, and a complete pedicle injury. Early identification and specialized repair of complex biliary injuries is essential to minimize patient morbidity. Notably, consulting a specialist intraoperatively in case of difficult dissection and visualization or a suspected injury and considering bail-out strategies such as a subtotal cholecystectomy or conversion are safe approaches to minimize complex biliary injuries. Earlier recognition and repair of complex biliary injuries improves outcomes when immediate intraoperative repair can be performed rather than delayed postoperatively.

Immunotherapy for metastatic liver disease from colorectal carcinoma: case series from the Middle East.

Immunotherapy poses new considerations and alterations to the management of metastatic colorectal carcinoma (mCRC), where chemotherapy achieves complete radiological response but yields complete pathological response in few patients only. Immunotherapy may be superior in the conversion of unresectable disease to resectable liver lesions from mCRC and downsizing borderline lesions for more feasible resectability and achieving complete pathologic response, with the potential for cure and to alter current, established guidelines for surgical resection with a shift from chemotherapy. We present two patients with hepatic lesions from mCRC characterized by deficient mismatch repair (dMMR) which were unresectable after traditional chemotherapy but were converted to resectable lesions with a complete histopathological response following immunotherapy. Complete histopathologic response and radiologic regression or disappearance of liver lesions was observed in patients with dMMR mCRC after pembrolizumab. Immunotherapy exhibits notable potential for cure, achieving complete, successful surgical resection and improving prognosis.

Indirect ballistic injury to the liver resulting in retained bullet complicated with hepatic abscess: a case report.

Indirect and extraperitoneal penetrating liver injury is an extremely uncommon phenomenon. In this report, we highlight the case of an 18-year-old male patient that sustained a gunshot wound with an entry site through the right buttock and landed in the liver. He presented to us in sepsis due to developing a hepatic abscess at the site of the dislodged bullet that was confirmed with computed tomography. Interestingly, the ballistic missile did not cause any visceral injury due to its indirect and extraperitoneal trajectory. The patient underwent diagnostic laparoscopy, where the hepatic abscess was unroofed and evacuated. A free-floating bullet was found and extracted, and a small bile duct leak was repaired. The patient had an uneventful post-operative course and was duly discharged on an empiric course of antibiotics.

Management of ruptured hepatocellular carcinoma invading the gastrointestinal tract: A case report.

INTRODUCTION AND IMPORTANCE: Hepatocellular carcinoma (HCC) constitutes most of primary liver cancers. HCC invading the gastrointestinal tract (GIT) is considered a rare entity with limited reports in the literature. Management can either be palliative or curative such as transarterial chemoembolization (TACE) followed by definitive resection. Here, we present a case of direct HCC invasion of the GIT that was managed by surgical resection. CASE PRESENTATION: A 74-year-old male with a history of a liver mass, found to have HCC. Admitted for medical optimization prior to definitive resection, however his stay was complicated by hemorrhagic shock, with imaging findings of hemoperitoneum suggestive of spontaneous rupture of the mass. TACE was done to stabilize the patient prior to resection. Patient was taken immediately to the operating room for definitive resection. CLINICAL DISCUSSION: Most cases of direct HCC invasion into the GI tract present mainly with GI bleed. Some patients, present with abdominal pain without any warning signs of an occult GI bleed. Thus, absence of an occult GI bleeding does not exclude a GIT invasion. Management options are several, but in advanced stages, management is not limited to palliation. CONCLUSION: GIT invasion is a rare complication of HCC reported in scarcity in the literature. Most cases present with GI bleeding but with some rare cases, they present with more generalized symptoms like abdominal pain, weight loss or fatigue. Despite having a poor prognosis, complete surgical resection of the tumor may be a reassuring and life prolonging treatment option for these patients.

Metastatic melanoma to the small bowel causing intussusception: A case report.

INTRODUCTION AND IMPORTANCE: Melanoma is a malignant skin neoplasm with a high metastatic potential. Several reports have shown that metastatic melanoma has a predilection to metastasize to the GI tract; however, diagnosing metastatic melanoma as a cause of intussusception has been reported in only few cases with variable presentations. CASE PRESENTATION: We present the case of a 48-year-old woman with a long history of metastatic melanoma who presented with recurrent enteric intussusception due to a melanoma lesion acting as a pathologic lead point despite immunotherapy treatment. We contribute the management plan, diagnostic modalities, and surgical approach of this rare form of adult intussusception in guidance of future management plans. CLINICAL DISCUSSION: The variability in presentation of adult intussusception makes diagnosis difficult and the lack of consensus on management and surgical strategies poses challenging hurdles. A diagnostic laparoscopy followed by reduction and resection of the intussuscepted lesion in a small surgical field is an effective and beneficial palliative procedure with favorable outcomes. Our patient developed intussusception despite receiving a trial of dual immunotherapy after chemotherapy. CONCLUSION: It may be insufficient to control disease even with dual immunotherapy after chemotherapy. Further studies are needed to determine the optimal surgical and oncological management in treating gastrointestinal metastasis of malignant melanoma.