Pedunculated pigmented basal-cell carcinoma on the buttock of a black man

Polypoid Basal Cell Carcinoma on the Nose Tip

Basal cell carcinoma (BCC) is usually seen on the face as a pigmented nodule. We herein report a patient who presented with a polypoid BCC on the nose tip. Clinically, we suspected adnexal tumor; however, the findings of dermoscopy were consistent with that of BCC. Although the tumor was excised at the stalk, it was completely resected. Since the clinical manifestation was characteristic, we reviewed previously reported polypoid BCCs and found that this tumor can occur at any site, including the trunk and inguinal region, which are not preferential sites for ordinary BCC. There have been no reports of polypoid BCC on the nasal tip. The initial diagnoses varied, including adnexal tumors, and dermoscopic examinations proved useful for suspecting polypoid BCC. Histopathologically, the tumor cells in the resected specimens were within the polypoid area. Although BCC is a common tumor, polypoid BCC has distinct clinical features, and we should keep this rare subtype in mind.

Multiple polypoid basal cell carcinomas on the perineum of a patient with basal cell nevus syndrome

We present a case report of a patient with basal cell nevus syndrome (BCNS) who developed multiple polypoid basal cell carcinomas (PBCC) in the perineum. PBCC is a rare variant of nodular BCCs. Clinically, PBCCs mimic acrochordons. We recommend that the perineum, perianal, and genital areas should be included in the routine exam of patients with BCNS.

Polypoid Basal cell carcinoma on the perianal region: a case report and review of the literature

We report the case of an 88-year-old Japanese woman with polypoid BCC on the perianal region. The basaloid, solid aggregations of BCC were limited to the upper to middle part of the polypoid area. A review of the English and Japanese literature that excluded cases of fibroepithelioma of Pinkus found 21 total cases in which the polypoid BCC could be recognized as a variant of nodular BCC. The following points were used to categorize the lesions: 1) characteristic polypoid appearance that often mimics clinically benign or malignant adnexal neoplasms, melanocytic nevus, or malignant melanoma; 2) the peculiar favorable locations such as scalp (23.8% of the 21 cases), genital area (23.8% of the cases), and back-buttock areas (19% of the cases). These areas suggest that etiologic factors other than ultraviolet radiation exposure are involved in such cases. These characteristic locations may also be the main reason why fibroepithelioma of Pinkus type BCCs frequently manifest with a polypoid appearance, because these types of BCCs also have similar preferred sites such as the back-buttock and genital areas. Polypoid BCCs appear to affect more women than men than do nodular BCCs (7 men and 14 women). Although the polypoid BCCs have a large average size, they are not considered aggressive because the lesions are well-circumscribed and the growth patterns are non-infiltrative.

Pedunculated basal cell epithelioma which is not Pinkus tumor

A 33-year-old female with pedunculated basal cell epithelioma was reported. She had noticed a cutaneous tumor on the scalp for two years before admission. It developed gradually and clinically resembled fibroma or pigmented nevus. Total resection was performed, and its histopathology revealed the solid or cystic type of basal cell epithelioma.

Pigmented basal cell carcinoma: investigation of 70 cases

BACKGROUND

Pigmented basal cell carcinoma (PBCC) is a clinical and histologic variant of BCC.

OBJECTIVE

Our purpose was to identify the histologic subtypes of BCC that were most often associated with pigment and to determine whether this correlated with outcome after excision.

METHODS

A series of PBCC was identified and the histologic subtype noted. Margins of all excisions were examined for residual tumor. These results were then compared with a series of nonpigmented BCCs.

RESULTS

In a series of 1039 consecutive BCCs, 70 (6.7%) contained pigment. The histologic growth pattern most frequently associated with pigment was the nodular/micronodular pattern (12.4%) followed by the nodular (7.7%), superficial (7.2%), micronodular (4.0%), and the nodular/micronodular/infiltrative (3.4%) patterns. Margins were examined for evidence of residual tumor in the 40 cases that were excised. In only one case (2.5%) was the margin positive for tumor. This was statistically significant (p less than 0.05) compared with 388 excisions of nonpigmented BCCs with comparable growth patterns in which 69 (17.7%) showed positive margins.

CONCLUSION

PBCC, as a clinical variant, is more frequently excised with adequate margins than are tumors of comparable histologic subtypes that do not contain pigment.

Basal cell carcinoma in North American blacks. Clinical and histopathologic study of 26 patients

Basal cell carcinoma is rare in blacks. A clinical and histopathologic review of 43 basal cell carcinomas in 26 black patients is reported. Basal cell carcinoma was found to be more common in women than in men. Our data indicated a lower prevalence on the nose and trunk compared with other reports. Multiple tumors were more common in our series. Our study included the youngest black patient with a pure basal cell carcinoma, the first reported superficial basal cell carcinoma, the second reported perianal basal cell carcinoma, and one albino patient with 12 tumors. Histologically there was a positive correlation between the maximum depth of tumor invasion and the maximum diameter of the lesion. Of three basal cell carcinomas arising in scars, metastasis developed in one. Our report includes a review of basal cell carcinomas in North American blacks.