Non-Alpine Thyroid Angiosarcoma Presenting with Unique Spinal Metastasis: A Rare Case Report from Pakistan.

Thyroid angiosarcoma is an extraordinarily sparse malignancy, often populating alpine regions. Clinically, thyroid angiosarcomas tend to be nonspecific in presentation, starkly dependent on site, size, extension, and metastases. Tumors are locally aggressive and can present with sudden onset pain due to intra-nodular hemorrhage and compressive symptoms from sudden expansion. Due to the disease being a scarcely reported entity, there is little scholarship regarding its management. We report an interesting case of a 63-year-old man presenting with a swelling in the neck, incidentally found to be a thyroid angiosarcoma with a first-time reported associated spinal metastasis. The patient has a uniquely presenting thyroid angiosarcoma and is the first patient to present as such within a non-alpine South Asian region.