A paramedian forehead flap used to reconstruct a large full-thickness defect of the nasal tip is based on which vessel?
- A Supratrochlear artery ✓
- B Supraorbital artery
- C Angular artery
- D Superficial temporal artery
Correct answer: A. Supratrochlear artery
Explanation
The paramedian forehead flap is the workhorse regional flap for large nasal defects. Its pedicle is the supratrochlear artery, which exits the orbit above the medial canthus and runs vertically on the forehead beside the midline, allowing reliable rotation down to the nose. The supraorbital artery exits further laterally at the supraorbital notch, the angular artery supplies the melolabial region, and the superficial temporal artery belongs to scalp and auricular flaps.
Reference: Grabb and Smith's Plastic Surgery, 8th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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