title: Radiologic misunderstanding of cutaneous angiomyolipoma in the alar base.
abstract: In this article, we will examine a case of cutaneous angiomyolipoma in the right nasal alar base area of a 36-year-old man. Generally, angiomyolipoma occurs in the kidney and, histologically, has features that are similar to cutaneous angiomyolipoma: smooth muscle cells, mature adipose cells, and a convoluted thick-walled blood vessel. Clinically, renal angiomyolipoma is related to tuberous sclerosis, but cutaneous angiomyolipomas occur very rarely, with a total of only 23 cases documented in the literature, with 39% (9/23) of those cases occurring in the ear or surrounding areas. In particular, the abundance of blood vessels inside a cutaneous angiomyolipoma produces good enhancement on computed tomographic image, making it easy for the tumor to be mistaken for a vascular tumor. In this particular case, we will report about a previously unheard case of cutaneous angiomyolipoma occurring in the nasal alar base that was mistaken for a vascular tumor.
authors.affiliation: From the Department of Plastic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
authors.forename: Hyun Ho
authors.initials: HH
authors.lastname: Han
authors.forename: Jong Yun
authors.initials: JY
authors.lastname: Choi
authors.forename: Bommie F
authors.initials: BF
authors.lastname: Seo
authors.forename: Suk Ho
authors.initials: SH
authors.lastname: Mun
authors.forename: Jong Won
authors.initials: JW
authors.lastname: Rhie
authors.forename: Sang Tae
authors.initials: ST
authors.lastname: Ahn
authors.forename: Deuk Young
authors.initials: DY
authors.lastname: Oh
mesh_terms: D018207:Angiomyolipoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003951:Diagnostic Errors; D006801:Humans; D008297:Male; D008875:Middle Aged; D009669:Nose Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed