Basal cell carcinoma and squamous cell carcinoma in a single tumor in the anterior auricular area

Concurrent presentation of porocarcinoma and basal cell carcinoma arising on a capillary malformation: a case report

Porocarcinoma (PC) and basal cell carcinoma (BCC) are distinct skin cancers. Few studies have documented the occurrence of two concurrent types of skin cancers, and to the best of our knowledge, this represents the inaugural report of such a coexisting lesion arising from a capillary malformation. Herein, we report a case of concurrent PC and BCC presenting with capillary malformation. A 93-year-old woman visited our hospital with a protruding mass in her right nasal ala that appeared as a capillary malformation. A biopsy was performed on the skin lesion, and BCC was diagnosed. A wide excision was performed. Permanent biopsy revealed that the skin lesion was a PC with basal cells and squamous differentiation. The safety margin of the deep tissue margin was < 0.1 cm; however, considering the advanced age of the patient, further excision was deemed to not possess any benefits. This case illustrates the importance of recognizing the possibility of multiple skin cancers, even in patients with benign lesions such as capillary malformations. The rarity of this presentation highlights the importance of thorough investigation and histopathological examination of skin lesions in guiding appropriate surgical excision.

Coexistence of Cutaneous Squamous Cell Carcinoma and Basal Cell Carcinoma in a Renal Transplant Recipient: A Case Report

In solid organ transplant patients, non-melanoma skin cancer remains a leading cause of mortality. The most common skin malignancies in solid organ transplant patients are squamous cell carcinoma (SCC) and basal cell carcinoma (BCC). In organ transplant patients, SCC is 100 times more prevalent, and BCC is 10 times more prevalent than in the general population. Many risk factors for developing such malignancies are equivalent to those in the general population. However, in the transplant population, such cancers occur at an earlier age, act more aggressively, and often appear at multiple locations. Thus, assiduousness on the patient's part and healthcare providers is the highest priority. The concurrence of SCC and BCC together is rarely encountered in a post-transplant individual. We report a rare case of coexistence of SCC and BCC in the same patient. A 63-year-old man had been diagnosed with SCC and BCC simultaneously by a punch biopsy performed at two different scalp lesions of different diameters. This review describes an unusual occurrence of both skin cancers concurrently in a kidney transplant recipient.

Malignant lesions of the ear

The dermatologic lesions of the external ear are quite protean and they encompass pre-malignant, malignant and inflammatory entities. The ear is endowed with functional and cosmetic importance and it is part of the "H-zone", which is the area of the head that generally presents tumors that can be considered high risk regardless of their size. As a matter of fact, skin malignancies of the ear tend to have a less benign course compared to the ones located on other areas of the body and complete excision has proven to be challenging. This mini-review provides an overview on the malignant cutaneous lesions of the external ear with a focus on their dermoscopic and reflectance confocal microscopy features. The most prevalent neoplasms of the auricle are squamous cell carcinoma and basal cell carcinoma followed by melanoma. These malignant lesions appear to be more common in men and to have a worse prognosis compared to when they arise from other body districts. There is a relative dearth of large studies centered on the clinical, dermoscopic and reflectance confocal microscopy features of skin cancers of the ear. Hence, further research inquiring into the specific dermoscopic and reflectance confocal microscopy characteristics of the cutaneous malignant lesions of the external ear, if any, are warranted for the future.

Basal cell nevus syndrome with excessive basal cell carcinomas

Basal cell nevus syndrome (BCNS), also known as basal cell carcinoma nevus syndrome, Gorlin syndrome, Gorlin-Goltz syndrome, and nevoid basal cell carcinoma, is a rare autosomal dominant disorder with a prevalence of approximately 1/60,000. A lower prevalence rate of 1/13,939,393 has also been reported in Korea. We report the case of a 40-year-old male patient with multiple black pigmented macules on the face that first appeared when he was a teenager. His clinical features of jaw cysts, bifid ribs, and calcification of the falx cerebri were fitting within the criteria for the diagnosis of BCNS. We excised all suspected macules and sent permanent biopsy. Most of the histological examinations of the biopsy samples taken during surgical excision of the face masses showed basal cell carcinomas. Ten months after the surgery, the patient has remained free from symptoms and is undergoing follow-up observation.