Epithelioid Hemangioendothelioma (EH) is a rare malignant vascular tumour that is considered to be intermediate grade between benign Hemangioma and malignant Angiosarcoma originates from vascular endothelial or Pre endothelial cells. EH can occur anywhere in the body most commonly affects the Liver, Lungs, Bones, and although involves the Pleura, Mediastinum, Spleen, Skin, Breast, Head and neck area, Brain and Meninges and Lymph nodes. It often involves either superficial or deep soft tissue, visceral organs and less commonly, medium-size or large veins. The aetiology is unknown and is usually diagnosed at young adult, being rare in children. EH is locally aggressive, heterogenous and represents less than 1% of all the vascular tumours and capable of metastasis. Prevalence is 1 in 1 million. A 45Years old male presented with soft to firm subcutaneous swelling since 7years later it progressed rapidly in size from 1year in the Right upper anterior chest. On examination: A non-tender, multilobulated exophytic lesion in the subcutaneous plane showing few erythematous nodules of varying size and were firm in consistency. High frequency Ultrasound.(US) of Right Supraclavicular Mass, and MRI Thorax modalities suggest features of Supraclavicular soft tissue neoplasm showing vascular components and concern for Hemangioendothelioma. Management includes wide excision of the soft tissue lesion in the supraclavicular region and followed by excisional biopsy and histopathological confirmation. US and most sensitiveMagnetic Resonance Imaging(MRI) modality features along with pathological techniques of Histopathology and Immunohistochemistry(IHC) techniques confirms the vascular nature of tumour. Followed by the wide excision the patient has undergone adjuvant radiation therapy to decrease the risk of local recurrence and distant metastasis

Keywords : CT Computed Tomography, Epithelioid Hemangioendothelioma, Immunohistochemistry, Magnetic Resonance Imaging, Out Patient Department, T1 Weighted Images, T2 Weighted Images, Ultrasound.