Cutaneous tumors located on the nasal ala often pose challenges to a Mohs surgeon because of the ala’s unique anatomy. Hemostasis is difficult and, if not accomplished quickly and fully, leads to an obscured surgical field. Intraoperative trauma can result in both patient and surgeon due to frequent blotting and blood clearing attempts in a small anatomic area. The usual method of pressure appl...

IMPORTANCE The stairstep graft is a novel method to modify the lateral anchoring point of lateral grafts for nasal valve correction. OBSERVATIONS Eight consecutive patients with a diagnosis of nasal valve collapse were included in the study. The novel method of stairstep grafts was performed to reinforce the lateral crus and to widen the nasal valve. Postoperative evaluations were performed b...

The zona limitans intrathalamica (ZLI) is located at the border between the prospective ventral thalamus and dorsal thalamus, and functions as a diencephalic signaling center. Little is known about the mechanism controlling ZLI formation. Using a combination of fate-mapping studies and in vitro assays, I show that the differentiation of the ZLI from progenitor cells in the alar plate is initiat...