Tumours of the Palm and Sole Resembling Basal Cell Epithelioma.

Eccrine Poroma

“…It apparently never struck previous observers th at seborrheic keratosis is not found on plantar skin, which is by far the commonest site for eccrine poroma. In a previous communication [16] it was concluded th at two cases of basal cell epithelioma of the sole reported by Zugerman [28] were in reality eccrine poromas, and th at a tum or of the sole considered by Hunter and Hellier [15] to be an eccrine poroma was actually a basal cell epithelioma. In one of our patients a " cystic" nodule had been removed from the knee.…”

“…In one case the poroma developed on the finger of a physician who showed evidence of radiation effects from fluoroscopy with inadequate protection. Preceding traum a was occasionally noted [7,15] in the previously recorded cases. There was no known fam ily history of similar lesions in the previous reports or in our m aterial.…”

“…All of our cases were of the white race, but eccrine poroma has been described in Negro [9,10,17,20,21,25], Japanese [27], Mexican [25], and Mestizo [22] patients. Cases have been reported from France [1,3,6,7], England [12,15], Belgium [8], Australia [14], Venezuela [21], Portugal [2], Japan [27], and Colombia [22]. The age of the patients at the tim e of biopsy is presented in Table II.…”

Bowen’s Disease and Squamous Cell Carcinoma of the Palm

“…Table I summarizes the previously published observations regarding palmar Bowen's disease. We have not included the case described by Rook [9], republished later [5], where no formal histological diagnosis of Bowen's [7], was a case of Bowen's disease involving essentially the dorsal and lateral aspects of the fingers. Similarly, Mackie [6] observed a palmar extension of Bowen's disease of the dorsum of the hand.…”

Rodent Ulcer of the Palm

“…Its ap pearance on the palm is an extremely rare phenomenon, and only a few histologically confirmed cases have been reported [6,7], The patient presented by Rook [15] cannot be classified as true BCC of the palm, be cause later the tumor was histologically con firmed as the metastasizing bowenoid carci noma [5], Hunter andHellier [5] described a case of palm tumor of 30-years duration, re sembling BCC, but histologically it was diag nosed as eccrine poroma.…”