Yes, I did see this several times. It depends on the sensitivity of the hair follicles for the DHT. You can see these patterns with the trichoscope and analyse it with the system of the Tricholab.

The treatment is the same since both patterns are caused by DHT. I treat it with Esthecin with very good results and no side effects. It is used topical twice a week. See my articles on researchgate. REP884 is the lab code of Esthecin.

Dear Mostafa Elsersy

I hope this is helpful: https://www.bosleypro.com/Blog/Education/What_Is_Female_Pattern_Baldness_qq_

Treatment For Female Pattern Baldness Women often tend to change up their hairstyles when thinning occurs. This is a temporary fix as the thinning and shedding will continue, which is consistent with female pattern baldness. The earlier you begin treatment, the likelier you are to prevent or lessen future hair loss. There is one medication approved by the FDA for female pattern baldness, but these are the options available.

• Minoxidil Minoxidil (Bosley for women) is the only medication approved as a treatment for female pattern balding and the only medication approved on the market for usage by women. As women generally do not lose as much hair as men, the minoxidil in regrowth treatments usually has about two percent in the formulas. With daily usage, a person will begin to see some regrowth within six weeks to two months, which is why it is an effective option.
• Spironolactone Spironolactone is a medication that is prescribed as a diuretic. It can also be used to treat androgenic alopecia, although it can take as long as one year to see regrowth of hair. The side effects are also problematic as women on a diuretic can experience irregular menstruations and spotting, fatigue, sensitivity in breasts, and electrolyte irregularities.
• Laser Treatments or Hair Transplants Women may choose laser treatments or Bosley Hair Restoration to revive growth cycles. There are also a number of non-surgical hair loss treatment that you could consider. It is important to keep in mind that female pattern baldness is not reversible, but it is possible to prevent symptom advancement by implementing a regular Bosley haircare routine that is especially formulated for your scalp health and vivacious hair strand restoration. 

So Dr.Hans, if treatment is the same regardless of the pattern, why they are differentiating between both patterns?

Dear Mustafa Elsersy, That is because the female hairs are 75% less vulnerable for the DHT and this in a different pattern. So the cause (DHT) is the same.

YES for "Can women have male pattern baldness and vice versa (males with female pattern baldness)", but infrequent. YES generally (not absolutely) for "Will treatment differ?" Minoxidil and 5ARIs (5-Alpha reductase inhibitors) can be applied in both gender but anti-androgen such as Spironolactone and Cyproterone is applied only for females. The aetiology is genetic predisposition and hormonal (androgen). However, pathophysiology in FPHL was not well understood yet. In fact, aetiology might be polygenic and multifactorial.