Pathological fractures in cancer patient cause severe pain that is difficult to control pharmacologically. Even with good pain relief at rest, breakthrough and incident pain can be unmanageable. Continuous regional nerve blocks have a definite role in controlling such intractable pain. We describe two such cases where severe pain was adequately relieved in the acute phase. Continuous femoral nerve block was used as an efficient, cheap and safe method of pain relief for two of our patients with pathological fracture femur. This method was proved to be quite efficient in decreasing the fracture-related pain and improving the level of well being.

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Background Castleman’s disease is a rare lymphoproliferative disease which can mimic other malignant tumours and can be associated with paraneoplastic pemphigus especially in the paediatric age group. This presentation can be challenging even to the seasoned anaesthesiologist when it comes to managing such a case presenting for laparotomy. Case presentation Here such a case in a 12-year-old who was initially diagnosed as retroperitoneal sarcoma complicated with paraneoplastic pemphigus and inferior venacaval thrombus is presented and its anaesthetic management and challenges are discussed. Special care needs to be taken while anaesthetizing such a patient keeping in mind the difficult airway, adrenocortical suppression, and exacerbation of skin lesions due to various anaesthetic procedures. For this case, the histopathology turned out to be Castleman’s disease. Conclusion The anaesthetic challenges associated with paraneoplastic pemphigus in paediatric age group receiving perioperative thromboprophylaxis need special mention. Here we are discussing the challenges and anaesthetic management of such a case as literature on this aspect is few.

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