[Pilomatrixoma in a tattoo]

Epidural analgesia and tattoos: a modified technique to minimise risks and improve safety

A healthy young woman with a sizeable lumbar tattoo was admitted to the delivery room in active labour at full-term gestation. She was experiencing strong, painful contractions and anxiety, concerned about the possible risks of receiving an epidural through a tattoo. Although there is little published evidence to suggest complications of performing an epidural through a tattoo, some studies report 'tissue coring phenomenon'. The anaesthesiology team informed the patient of the risks inherent in a traditional epidural and the potential long-term risks of receiving an epidural through the tattoo. Upon signing the informed consent form, the modified epidural technique was performed, and its administration proceeded without complications. A healthy boy was born 3.5 hours later in a vacuum-assisted delivery. This article describes the modified epidural technique designed to minimise tissue coring, and the results of 18 months of uneventful patient follow-up.

Squamous Cell Carcinoma and Tattoo: A Man With a Tattoo-Associated Squamous Cell Carcinoma and Review of Benign Tumors, Lymphoid Conditions, and Malignant Neoplasms Occurring Within a Tattoo

Tattoos, a common form of body adornment, have been associated with numerous cutaneous complications. These include not only benign neoplasms and malignant tumors but also lymphoid conditions occurring within the tattoo. Tattoo-associated dermatomyofibroma, epidermoid inclusion cyst, hemangioma, lipoma, milia, and pilomatricoma are benign lesions that have each only been described in one individual. However, there are only a few reports of persons with either dermatofibroma or seborrheic keratoses within their tattoo; also, benign nevi within a tattoo may be more common than the number of reported individuals. In contrast, there are multiple patients with tattoo-associated pseudoepitheliomatous hyperplasia. Lymphoid conditions that have been observed in a tattoo include single patients with either lymphomatoid papulosis or B-cell lymphoma; however, several individuals have been described with pseudolymphoma developing within their tattoo. Tattoo-associated cutaneous cancer predominantly includes individuals with squamous neoplasms (such as keratoacanthomas and squamous cell carcinomas) and malignant melanoma; however, basal cell carcinoma originating within a tattoo is not uncommon. A 57-year-old man is described who received a tattoo on his left forearm 35 years earlier; he subsequently developed a squamous cell carcinoma in the black tattoo ink. In contrast to the patient in this report, tattoo-associated squamous neoplasms usually develop within a median of four weeks after tattoo inoculation, touch-up, or laser-assisted removal. Also, in contrast to the reported patient, tattoo-associated squamous neoplasms are more commonly observed in red tattoos. However, malignant melanoma and basal cell carcinoma more frequently occur in black and darker-pigmented tattoos. In addition, dermatofibrosarcoma protuberans, cutaneous leiomyosarcoma, and invasive breast duct carcinoma cutaneous metastases have each been described to appear within a patient’s tattoo. It remains to be determined whether tattoo inoculation or tattoo pigment, or both have an epidemiologic role in the subsequent development of benign, lymphoid, or malignant lesions within the tattoo. Several observations support either a direct or indirect role of tattooing as a contributing factor and tattoo pigment as a carcinogen in the etiology of tattoo-associated malignancies. Investigation into the possible relationship between tattoos and cancer development is in progress.