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Hepatic haemangiomas are the most common benign hepatic tumour; they are usually solitary, less than 5 cm in size, and clinically silent. Giant cavernous haemangiomas are a minor subset of hepatic haemangiomas, often symptomatic due to a mass lesion, complications or compression of adjacent structures. Few of these are pedunculated—often difficult to diagnose because of their exophytic development and greater tendency towards complications through the twisting of their peduncle. We report the case of a 55-year-old woman with a giant pedunculated hepatic cavernous haemangioma causing abdominal pain, with epigastralgia mimicking a gastric stromal tumour. We discuss the diagnostic workup, focusing on the useful of computed tomography and magnetic resonance imaging findings and giving a brief report of the therapeutic management and literature review.

Horner’s syndrome (HS) is caused by an interruption of the cervical sympathetic pathway to the eye and the face. Acquired HS is mainly caused by benign or malignant neoplasms, and in patients with a history of cancer, it is almost always the result of tumor infiltration into the periphery or the central region of the cervical sympathetic chain. We present the case of a 52-year-old patient with long-term disease-free survival (6 years) after a radical mastectomy for breast cancer who presented with cervicobrachialgia and typical HS due to a left lateral-cervical and supraclavicular lymph nodal mass. Treatment of the metastatic disease with taxanes and concurrent trastuzumab resulted in a complete pain resolution, as well as long-term clinical and radiologic remission; however, the neurological cohort of HS remained as the expression of permanent damage to the sympathetic pathway. This report presents a highly rare case of HS as the first and solitary appearance of metastatic disease in a breast cancer patient. This neurologic involvement should always raise suspicion of metastatic infiltration, and the early recognition of the syndrome may prevent permanent nerve injury.

e11556 Background: Node negative (N0), early breast cancers (EBC) smaller than 2 cm (stage IA) are generally considered at good prognosis. However, the prognostic role of tumor characteristics such...