sa国际传媒

Dear Dr. Roach: I鈥檓 an 81-year-old man. About two years ago, I began to realize that my testicles were shrinking, and they are now about the size of a marble.

Dear Dr. Roach: I am battling depression and have a question about psilocybin. I stopped taking Effexor for my depression because I did not like the side- effects. I also tried SAM-e, which had only a small effect.

Dear Dr. Roach: I read an article about a study the Mayo Clinic did using 20-milligram tablets of sildenafil for pulmonary arterial hypertension and that it improved walking distance by 75 per cent.

Dear Dr. Roach: Could you give some additional information about H. pylori infection? I was diagnosed with it recently, via biopsies taken during an endoscopic procedure.

Dear Dr. Roach: Is it possible for X-rays and a CT scan to miss advanced lung cancer? My brother worked two days before he died. He went to the hospital, was admitted to hospice and died the next day.

Dear Dr. Roach: I am in my mid-50s and in good health (I don鈥檛 take any medications). I rarely get sick with colds or flu. I have been vaccinated with all the common vaccinations for childhood.

Inappropriate sinus tachycardia most often seen in women in their 30s

Dear Dr. Roach: I have been following all the concerns about exposure to measles, but have not seen anything mentioned that it is dangerous for pregnant women to be exposed.

Dear Dr. Roach: My girlfriend has necrobiosis lipoidica. She suffers from this on her shins, as did her mother. She is not diabetic. We cannot find good information on how to rid her of this.

Dear Dr. Roach: I am a 66-year-old woman. I had a hysterectomy and removal of one ovary. For the past six months, I have had brown vaginal discharge. Should I be concerned? L.M.