title: Mohs micrographic surgery in the setting of squamoid eccrine ductal carcinoma: addressing a diagnostic and therapeutic challenge.
abstract: OBJECTIVE
  The purpose of this case report and literature review was to summarize the current knowledge surrounding this rare cutaneous tumor and promote awareness of the success of Mohs micrographic surgery as a definitive therapeutic modality in a case of squamoid eccrine ductal carcinoma.
  
  
  METHODS
  Case report and literature review.
  
  
  METHODS
  Squamoid eccrine ductal carcinoma has been introduced as a rare type of eccrine carcinoma with only eight previously reported cases in the literature. Despite the tumor's introduction as a type of eccrine carcinoma, the true etiology is currently contentious; the lesion represents a diagnostic challenge, and its malignant potential remains uncertain. Thus, proper histological diagnosis and definitive management are under active discussion.
  
  
  METHODS
  Index case patient records review and peer-reviewed literature.
  
  
  RESULTS
  The authors present the ninth reported case of squamoid eccrine ductal carcinoma and the third report of Mohs micrographic surgery for complete extirpation of the lesion.
  
  
  CONCLUSIONS
  The anecdotal success of Mohs micrographic surgery as a therapeutic modality in the treatment of three cases of squamoid eccrine ductal carcinoma (including the case reported herein) suggests that this is an effective yet tissue-sparing surgical modality. However, given the poorly understood natural history of squamoid eccrine ductal carcinoma and the uncertainty of the lesion's etiological and malignant taxonomy, further experiences with this tumor are necessary and close follow up of patients is suggested.
authors: Department of Internal Medicine, Division of Dermatology, The Ohio State University Medical Center, Columbus, Ohio.
authors: Shane
authors: S
authors: Clark
authors: Adam
authors: A
authors: Young
authors: Eli
authors: E
authors: Piatigorsky
authors: Larisa
authors: L
authors: Ravitskiy
references: Histopathology. 1998 May;32(5):478-80
references: 9639127
references: J Am Acad Dermatol. 1992 Jun;26(6):976-90
references: 1607418
references: Am J Dermatopathol. 2009 Dec;31(8):849-52
references: 19786851
references: J Cutan Pathol. 2006 Jun;33(6):413-7
references: 16776716
references: Am J Dermatopathol. 1993 Oct;15(5):492-6
references: 7694517
references: Am J Dermatopathol. 1993 Oct;15(5):435-40
references: 7694516
references: Am J Dermatopathol. 2010 May;32(3):287-292
references: 20010402
references: Semin Diagn Pathol. 1987 Feb;4(1):38-74
references: 2823361
references: J Cutan Pathol. 2004 Feb;31(2):145-52
references: 14690459
references: Dermatol Surg. 2004 Dec;30(12 Pt 2):1574-9
references: 15606845
references: Histopathology. 1997 Mar;30(3):288-93
references: 9088963
references: Am J Dermatopathol. 1990 Aug;12(4):344-9
references: 2168131
references: J Cutan Pathol. 2006 Mar;33(3):191-206
references: 16466506
references: Dermatol Surg. 2005 Nov;31(11 Pt 1):1462-4
references: 16416622
references: J Cutan Pathol. 2007 Jun;34(6):503-7
references: 17518781
references: J Am Acad Dermatol. 1998 Jul;39(1):79-97
references: 9674401
references: Adv Dermatol. 2008;24:33-57
references: 19256304