Lytic bone lesion of the skull a rare manifestation of hepatocellular carcinoma: A case report

Sherif Wael, Speaker at Oncology Conference
Doctor

Sherif Wael

Mansoura University Hospitals, Egypt

Abstract:

Background: Hepatocellular carcinoma (HCC) ranks among the leading causes of cancer-related deaths worldwide, with metastatic spread to bones being alarmingly frequent. However, HCC metastases to the skull are notably rare, accounting for only 0.4-1.6% of all bone metastases. Typically, metastases are found in the spine, pelvis, and ribs. The occurrence of solitary skull metastases, especially in the absence of active primary liver cancer, is extremely uncommon.

 

Case description: We present the clinical case of a 57-year-old male patient with a documented history of hepatitis C virus infection but without prior evidence of active hepatocellular carcinoma. Over the course of several months, he developed a non-tender, progressively enlarging mass located in the occipital region of the skull. A computed tomography (CT) scan identified a lytic lesion with intracranial compression, although no midline shift was noted. Histopathological examination confirmed the lesion as metastatic HCC, further supported by immunohistochemical markers Hepatari- 1 and Cytokeratin- 19. Subsequent diagnostic procedures revealed hepatic lesions, including a positron emission tomography (PET)-CT scan. Further examination through CT imaging of the abdomen with contrast highlighted a well-defined focal lesion in hepatic segment 4a, measuring 4.3 × 4.3 cm, predominantly enhancing with HCC characteristics. The skull lesion was surgically removed en bloc, and the patient underwent adjunct radiotherapy and systemic therapy, with palliative therapy till his death in May 2024. To better understand and manage this atypical presentation, we conducted a review for the discussion of clinical manifestations, imaging findings, pathological features, and patient outcomes associated with HCC skull metastases.

 

Conclusion: This case emphasizes the critical importance of considering hepatocellular carcinoma in the differential diagnosis of solitary skull lesions, especially in patients with risk factors for liver disease. Prompt identification of the primary malignancy remains essential for ensuring optimal management and improving patient prognosis.

Biography:

Sherif Wael had completed his bachelora's degree of Surgery and Medicine at Faculty of Medicine Mansoura University, specifically from Mansoura Manchester Medical program, Mansoura Egypt, now as internship doctor at Mansoura University Hospital, working as first assistant for a consultant and a member of the Royal Collage in the United kingdom in his surgeries and clinic.

 

Published his first case report in Patient Safety in Surgery and is working on others to this moment.

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