1. Folliculocystic and Collagen Hamartoma: A Subset of Fibrous Cephalic Plaque
- Author
-
Kyle Norton, Anita S. Savell, and Michael R. Heaphy
- Subjects
Pathology ,medicine.medical_specialty ,congenital, hereditary, and neonatal diseases and abnormalities ,business.industry ,General Engineering ,Dermatology ,tuberous sclerosis complex ,030204 cardiovascular system & hematology ,medicine.disease ,Hypomelanotic macule ,Angiofibromas ,fibrous cephalic plaque ,folliculocystic and collagen hamartoma ,Shagreen ,03 medical and health sciences ,Tuberous sclerosis ,0302 clinical medicine ,medicine ,Cutaneous hamartoma ,hamartoma ,Hamartoma ,business ,030217 neurology & neurosurgery ,Collagen hamartoma - Abstract
Tuberous sclerosis complex is known to cause a variety of cutaneous hamartomas, most commonly hypomelanotic macules, angiofibromas, shagreen patches, and fibrous cephalic plaques. In recent years, a new cutaneous hamartoma that bears physical and histological resemblance to fibrous cephalic plaque has been proposed called folliculocystic and collagen hamartoma. The primary difference between the two diagnoses is the histologic presence of infundibular cysts in the latter. However, some authors have called into question if the two diagnoses are truly distinct. In this case report, we present a patient with tuberous sclerosis complex and fibrous cephalic plaque with infundibular cysts and propose that the presence of cysts should be incorporated into the possible histologic features of fibrous cephalic plaque.
- Published
- 2021