Pedicled circumflex scapular artery perforator flap with intra‐axillary tunneling for axillary defect coverage after surgical excision of hidradenitis suppurativa: A case report and literature review

Abstract

Axillary defects represent a rather common issue in plastic surgery practice. Surgical resections related to skin disease are frequent in this region and their extension often requires soft tissue transfer for coverage. In this setting, locoregional pedicled flaps are usually preferred. The nearby tissues offer pliable but still resistant skin, which satisfy the “like‐with‐like” reconstructive principle. Over the years different procedures have been described for this purpose. Among them, a valuable and often underestimated technique is the circumflex scapular artery perforator flap (CSAP). This technique might be particularly suitable for thin but relatively large defects. Its main advantages are a low donor site morbidity, a very reliable anatomy, and a perforator pedicle able supply a large skin paddle. In the present work, we report the use of a pedicled vertical CSAP flap passed through the axillary canal in order to cover a 9 cm × 7 cm axillary defect after surgical excision of hidradenitis suppurativa resistant to conservative treatment. The perforator‐based pedicled presented two branches, which allowed us to harvest safely a large skin paddle, which limited its range of motion. For this reason, we opted for a passage through the axillary canal for the flap inset. The postoperative course was uneventful and full shoulder range of motion was obtained at 3 months follow‐up. Despite most of the descriptions of this flap available so far showed its employment for limb's reconstructions, we believe that it is a very useful tool also for locoregional coverage. Moreover, the unconventional passage below the axillary muscles allowed reaching the recipient site even with a shorter pedicle, such as the one encountered in this case.