[Bullous pemphigoid with unilateral sparing after axillary lymphadenectomy].

An 83-year-old woman presented to our outpatient clinic with bullous pemphigoid with a unilateral sparing of the left arm after axillary lymphadenectomy because of breast cancer. Cases of localized manifestations of bullous pemphigoid are mainly caused by lymphedema or radiation. The absence of blistering after lymphadenectomy is a rare and interesting manifestation. Pathophysiologically, blister formation may be attenuated or absent altogether due to decreased T‑cell activation and thus reduced inflammatory infiltrate because of the absence of peripheral lymph nodes.
(© 2021. The Author(s).)