I`m glad you were able to move past this.... I was not. I don`t think its necessary to suffer from PTSD in the course of healing you. All of the mammograms, MRI`s biopsy`s were performed by females, and I was present to hold her hand.
I actually asked about this, and was told that this was preferred by patients, so, they only hire females for these positions. I totally agree. I believe its about relating to a gender. Obviously I`m a male. I`m pretty sure that a female can`t relate to being hit in the testicles. LOL, also, I would also feel very uncomfortable about being on "display" regardless if it was intentional or not.
I went to school at one time to become a medical assistant. I was very aware of peoples right to be treated with respect an dignity. On a few occasions I had females drop there panties to there knee`s to receive an injection. I always turned my back to them, and asked them to please pull them up. LOL I think everyone has personal preferences, but as medical personnel, if there's genitalia or breasts involved, it should be automatic that you are examined by the same gender.
I`m sure there are those that won`t agree, but that`s my opinion.
At my wife's clinic, this is policy.
My wife is very kind and accommodating when it comes to providers.... I am not.

Hang in there, and next time demand it.... you are the patient