Balanitis xerotica obliterans (BXO) or Lichen sclerosus (LS) of the genitalia is a chronic and progressive inflammatory disorder involving the skin of the penis. It commonly affects the foreskin but may also affect the penis and urinary opening as well as the urine tube (urethra).
A long, thin, strap-like muscle; runs diagonal over anterior thigh. O- anterior superior iliac spine I- medial tibial surface A- flexes leg, flexes & laterally rotates thigh
1 The vastus medialis is a muscle present in the anterior compartment of thigh, and is one of the four muscles that make up the quadriceps muscle. 2  It is the most medial of the vastus group of muscles, the others being vastus intermedius and vastus lateralis. The fibers converge onto the inner (medial) part of the quadriceps femoris tendon and the inner (medial) border of the patella. 2  The obliquus genus muscle is the most distal segment of the vastus medialis muscle.