Idiopathic Facial Aseptic Granuloma: Clinical and Ultrasound Findings in 3 Cases

Dermoscopic features of idiopathic facial aseptic granuloma

“…Histopathology usually shows a chronic dermal inflammatory infiltration with histiocytes, lymphocytes, neutrophils, and multinucleated giant cells. Ultrasound studies reveal a solid, hypoechoic, well‐demarcated lesion without calcium deposits or microcalcifications …”

Cutaneous ultrasound and its utility in pediatric dermatology. Part I: Lumps, bumps, and inflammatory conditions

“…Upon resolution, thickness decreases and the surrounding tissues recover their normal echogenicity and blood flow. Calcification within the lesion has not been previously reported …”

“…It usually presents as a well-defined, dermal, oval, hypoechoic lesion, with the major axis parallel to the skin surface. 59,60 An irregular posterior wall, with ill-defined and lobulated margins, has also been reported. 61 During the inflammatory or active phase, surrounding tissues gain echogenicity.…”

“…Sonographic findings of IFAG may facilitate diagnosis. It usually presents as a well‐defined, dermal, oval, hypoechoic lesion, with the major axis parallel to the skin surface . An irregular posterior wall, with ill‐defined and lobulated margins, has also been reported .…”

“…Increased blood flow can be detected in Doppler mode, both peri-and intralesionally, especially in the deepest part of the lesion. 59 The increased echogenicity in the surrounding hypodermis might represent inflammation, 59 but can also be explained as a posterior artifact produced by blood vessels. 62 Upon resolution, thickness decreases and the surrounding tissues recover their normal echogenicity and blood flow.…”