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Atypical fibroxanthoma: An analysis of 105 tumors
Author(s) -
Bitel Alena,
Schönlebe Jacqueline,
Krönert Claudia,
Wollina Uwe
Publication year - 2020
Publication title -
dermatologic therapy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.595
H-Index - 68
eISSN - 1529-8019
pISSN - 1396-0296
DOI - 10.1111/dth.13962
Subject(s) - atypical fibroxanthoma , medicine , histopathology , sarcoma , infiltration (hvac) , histology , pathology , immunohistochemistry , dermatology , physics , thermodynamics
Atypical fibroxanthoma (AFX) is a rare, low‐grade dermal sarcoma. We analyzed our files from January 2001 to January 2020 for AFX. Clinical parameters, histopathology, treatment and outcome have been investigated. We identified 87 patients (mean age of 80.0 ± 8.4 years) with 105 confirmed tumors. Of these patients 86.2% were males. The most common clinical presentation was nodular (93.3%). The majority of AFX was located on the head with a mean tumor diameter of 15.0 mm ± 3.5 mm. All tumors showed a dermal localization, in 46.4% with a focal infiltration of the deeper layers. Second skin cancer was reported in 62.1% of patients. Collision tumors were seen in six patients. Treatment was surgical with three‐dimensional margin control. Relapses were noted in 11.4% of tumors with a mean delay of 11.7 ± 17.3 months. Focally deeper infiltration of AFX was a risk factor ( P = .014). None of the purely dermal AFX relapsed. No metastasis was observed. AFX is a rare mesenchymal tumor of elderly patients. Treatment of choice is the complete surgical excision. Due to the high rate of other skin malignancies among patients with AFX, a regular follow‐up is recommended.

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