Question: A 73 year old male with multiply recurrent squamous cell carcinoma of the vertex scalp undergoes resection and free flap reconstruction. The latissimus dorsi myofascial flap is utilized in conjunction with a split thickness skin graft. The pedicle is tunneled to the neck for anastomosis to the external carotid. What is the primary arterial supply and the typical length of the pedicle?

a) Descending branch of transverse cervical artery - 10 cm

b) Descending branch of transverse cervical artery - 15 cm

c) Thoracodorsal artery - 8 cm

d) Thoracodorsal artery - 15 cm

[Answer will be posted with next week's new question]

Answer to last week's question, “Confirm or Deny" (July 8, 2019)

B - Urine LTE4 greater than 165 pg/mg