Histological evaluation of resected lymph nodes revealed lipogranulomas and clusters of epithelioid macrophages with inclusions that were positive with the periodic acid-Schiff (PAS) stain (Figure 2).

Sections were deparaffinized in xylene, rehydrated by standard procedures and stained with haematoxylin and eosin or haematoxylin and periodic acid schiff. We detected Prm2, Tnp2 and GH1 using ...