Intramuscular dirofilariasis mimicking an orbital metastasis in a patient with breast cancer.

We present the unusual case of a 74 year-old female with a history of breast cancer who presented with acute painless orbital swelling and vertical diplopia. MRI revealed a focal enhancing mass within the superior rectus muscle. As the concern for metastatic disease was high, surgical biopsy was performed and revealed an unusual mimicker of metastatic disease, the parasitic infection dirofilariasis.

A new heat source for thermochemical ablation based on redox chemistry: initial studies using permanganate.

Purpose: To evaluate exothermic permanganate redox chemistry for utility in tumour ablation.

Materials And Methods: Sodium permanganate (1-3 mL, 1 or 2 M) and glycerol (1 mL, 1 M) were injected in triplicate into a beaker using three injection orders: (1) simultaneous, (2) glycerol injection then permanganate injection, (3) permanganate injection then glycerol injection. Selected experiments were repeated with glucose, sucrose, dextrin, maltodextrin, different polysaccharides, and polyvinyl alcohol as substrates.