26 August 2021
: Case report 
Polycythemia Vera Associated with Pulmonary Hypertension and Diffuse Large B-Cell Lymphoma: A Case Report
Challenging differential diagnosis, Rare disease, Rare coexistence of disease or pathology
Satoshi Kameda1ABCDEF, Fusako Sera1ABCDEF*, Kazuaki Sato2BCD, Masako Kurashige2BCD, Shuichiro Higo13E, Tomohito Ohtani
1E, Akihiro Tsuboi4E, Shungo Hikoso1E, Eiichi Morii2BCD, Osamu Yamaguchi5AE, Keiko Yamauchi-Takihara16AE, Yasushi Sakata1AE
DOI: 10.12659/AJCR.932956
Am J Case Rep 2021; 22:e932956
Figure 3. Microscopic findings in the pulmonary arteries: (A) Thickened walls of the pulmonary artery (hematoxylin-eosin stain) (scale bar 500 µm). (B) Elastica van Gieson staining showed intimal fibrosis (thin arrow) (scale bar 250 µm). (C) Elastica van Gieson staining showed thrombotic obstruction with recanalization (arrowheads) of the pulmonary arteries (scale bar 1 mm). (D) Megakaryocytes (thick arrows) seen in the lung tissue specimen (hematoxylin-eosin) (scale bar 250 µm).