Granular cell tumour and leiomyomatosis of the esophagus--a non-coincidental association?

Well-differentiated chondrosarcoma of the humerus with prominent granular cell component: a hitherto unreported occurrence

We report the case of a well-differentiated chondrosarcoma of the proximal humerus in a 60-year-old man that featured a prominent component of granular cells, the granules being shown by electron microscopy to be lysosomal. Although secondary granular cell changes have been described in a large variety of tumor types, this is, to the best of our knowledge, the first documentation of this phenomenon in a skeletal chondrosarcoma.

Endoscopic finding of granular cell tumour associated with leiomyomas in the oesophagus

Following a single report in the literature of granular cell tumour associated with diffuse leiomyomatosis in the oesophagus, we describe the case of a 39-year-old man in whom a granular cell tumour and two leiomyomas were endoscopically removed from this site. This previously unreported association of granular cell tumour with isolated leiomyomas suggests the need to bear in mind the possibility of other mesenchymal lesions, including leiomyomas or leiomyomatosis, when a granular cell tumour is found in the oesophagus.