Solitary Subcutaneous Nodule over the Right Elbow

DOI: 10.4103/0019‐5154.198029 A 25-year-old male presented with a solitary asymptomatic swelling over the right elbow of six months duration. There was no history of joint pain, breathlessness, diabetes, or any other systemic complaint. He was not on any medication. Cutaneous examination revealed solitary, nontender, subcutaneous nodule measuring 4 mm × 4 mm over the right elbow [Figure 1]. The overlying skin was apparently normal. Other mucocutaneous, general, and systemic examinations were within normal limits. The histopathology of excised nodule revealed well-encapsulated subcutaneous tumor comprising of proliferating small-caliber blood vessels and adipose tissue [Figure 2]. The proliferating capillaries formed the bulk of the lesion and imparted an angiomatous pattern of growth with few of them containing thrombi in their lumen [Figure 3]. A variable amount of spindle cells, with few mast cells were present between the proliferating capillaries without any significant cellular atypia, pleomorphism, or mitotic figure [Figure 4].