Şule Yıldız SAĞCAN TERCAN, Göksu DALGIÇ DEMİRTAŞ, Mustafa Turhan ŞAHİN
Turkish Journal of Dermatology - 2026;20(1):39-41
Cydnidae can cause transient cutaneous pigmentation through defensive secretions. We report a case of 24-year-old woman who presented with sudden-onset asymptomatic brownish-black macules on the gluteal region following seaside exposure. The lesions were non-blanching and resistant to cleansing; dermoscopy revealed brown dots and irregular linear structures with superficial light-brown amorphous pigmentation. The pigmentation resolved spontaneously within one week, consistent with pigmentation caused by burrowing bugs. Awareness of this rare, self-limiting condition at atypical sites may prevent unnecessary diagnostic procedures.
