Question : Can it also happen that stress (from any such illness) directly accelerate/increase male pattern baldness without causing acute/chronic telogen effluvium?
This is a great question that has never been fully addressed by scientific studies in any rigorous manner. A 2010 study from the International Journal of Trichology suggested that lifestyle factors and stressful life events were not significantly affected by the onset of genetic hair loss.
SAWANT ET AL. Int J Trichology. 2010 Jul;2(2):81-5. doi: 10.4103/0974-7753.77510. Androgenetic Alopecia: Quality-of-life and Associated Lifestyle Patterns.