Small pulmonary AVMs (▸) with peripherally localizing lymphoid aggregates (∗) were confirmed on explanted lung pathology. Immunohistochemical staining directed against (a) H/E, (b) CD4, (c) CD8, (d) CD20, and (e) CD68. Bilateral lung transplantation in a patient with humoral immune deficiency: a case report with review of the literature: Farmer JR, Sokol CL, Bonilla FA, Murali MR, Kradin RL, Astor TL, Walter JE - Case reports in immunology (2014). Not altered. CC.