Unusual size, topography, and surgical resolution of an acquired fibrokeratoma

Abstract

Acquired fibrokeratoma is a rare benign skin tumor that usually manifests as a slow-growing solitary nodular lesion of the digits. We report a case of plantar acquired fibrokeratoma evidencing its atypical size and topography, in addition to the treatment with simple surgical excision followed by healing by second intention. Nondigital fibrokeratomas may occur in 18% of cases and rarely affect the palmoplantar region. These lesions are usually asymptomatic and show ≥ 3cm in size at the time of diagnosis due to delayed diagnosis. Complete surgical excision is the treatment of choice, which is usually curative. In general, primary closure is chosen; however healing by second intention becomes an option in regions of difficult approach.

Acquired fibrokeratoma: A retrospective study in a tertiary centre in South India

“…AFK is an uncommon, sporadic, benign, acquired, slow-growing, fibrous tumour that commonly affects the fingers, especially in areas adjacent to interphalangeal joints. [ 2 7 8 9 ] It can also occur on palms, dorsum of hands, nail bed, periungual region, wrist, elbows, knees, toe, ankle, sole, calf, prepatellar area, lower lips and nose. [ 3 7 8 ] AFK has a slight preponderance among males and occurs more commonly in middle-aged adults.…”

“…[ 2 7 8 9 ] It can also occur on palms, dorsum of hands, nail bed, periungual region, wrist, elbows, knees, toe, ankle, sole, calf, prepatellar area, lower lips and nose. [ 3 7 8 ] AFK has a slight preponderance among males and occurs more commonly in middle-aged adults. [ 9 ] In a case series, Baykal et al .…”

Neoformación en cara ventral de primer ortejo

“…9 Otras localizaciones menos frecuentes son: talones, muñecas, codo, área prepatelar, labio inferior y nariz (18% de los casos). 6,7 Suele comenzar como neoformación solitaria de aspecto papular, firme, del color de la piel o ligeramente eritematosa con un collarete hiperqueratósico en su base y escama periférica, que crece y forma una neoformación exofítica, sésil o pediculada, de bordes bien definidos. 1,5,6 Se han reportado algunos casos con superficie verrugosa.…”

“…6,7 Suele comenzar como neoformación solitaria de aspecto papular, firme, del color de la piel o ligeramente eritematosa con un collarete hiperqueratósico en su base y escama periférica, que crece y forma una neoformación exofítica, sésil o pediculada, de bordes bien definidos. 1,5,6 Se han reportado algunos casos con superficie verrugosa. 10 La localización ungueal puede generar depresión lineal canalicular.…”

“…Otras posibilidades diagnósticas son: fibromatosis digital infantil, quistes mixoides y neurofibromas cutáneos. 2,6,22…”