As in the kidney and digits, scleroderma can cause sclerosis of the pulmonary arterioles leading to pulmonary hypertension. The pulmonary arterioles show concentric intimal proliferation, medial hypertrophy and adventitial fibrosis. In systemic sclerosis, endothelial dysfunction in the small arterioles triggers a cascade of vasoactive mediators, vascular remodeling, and in situ thrombus formation, resulting in progressive luminal narrowing. Pulmonary hypertension is occasionally seen in lupus as well.

Here is a pathology (and a normal) that is not generally apparent on either gross or CT exam.

What is the name of this pathology and what disease (SLE or systemic sclerosis) is it associated with?