DGK saw her primary care physician, Dr. Raymond Di Pasquo, for recently developed skin lesions. After having seen Dr. Di Pasquo on Nov. 20, 2001, DGK consulted with a dermatologist, Dr. Robert Signore, who biopsied the lesion on her right lateral thorax on Dec. 3, 2001.
The biopsy was sent to Pinkus Dermatopathology Laboratory, where it was interpreted by the defendant physician, Dr. Darius Mehregan.
On Dec. 20, 2001, Dr. Mehregan reported that the specimen was squamous cell carcinoma or a type of skin cancer; a low-grade malignancy believed to have originated from the neck of the hair follicle. This kind of tumor is reported to rarely progress into an invasive squamous cell carcinoma. From there, DGK was referred to a surgeon specializing in chemosurgery for removal of skin tumors.