case_images: PMC3027001_01
case_images: Low-power examination revealed abnormal keratin, severe dermal sun damage, tattoo pigment, and a cellular dermal neoplasm.
case_images: CRIM2010-431813.001.jpg
case_images: PMC3027001_01_CRIM2010-431813.001.jpg
case_images: fig1
case_images: Microscopically, a poorly differentiated carcinoma was present within a sun-damaged dermis, infiltrating amongst dermal tattoo pigment as single cells and nests (Figures 1-4).
case_images: Basal keratinocyte dysplasia showing abnormal downward growth, abnormal surface keratin, and tattoo pigment within papillary dermis was noted.
case_images: CRIM2010-431813.002.jpg
case_images: PMC3027001_01_CRIM2010-431813.002.jpg
case_images: fig2
case_images: Microscopically, a poorly differentiated carcinoma was present within a sun-damaged dermis, infiltrating amongst dermal tattoo pigment as single cells and nests (Figures 1-4). The overlying epidermis showed focal abnormal keratin and basal keratinocyte dysplasia (Figure 2). 
case_images: High-power photomicrograph demonstrates cells with enlarged nuclei, one-to-two prominent nucleoli, cytoplasmic keratin, well-defined cell borders, and early pearl formation, features indicative of squamous differentiation.
case_images: CRIM2010-431813.003.jpg
case_images: PMC3027001_01_CRIM2010-431813.003.jpg
case_images: fig3
case_images: Microscopically, a poorly differentiated carcinoma was present within a sun-damaged dermis, infiltrating amongst dermal tattoo pigment as single cells and nests (Figures 1-4). Cytologically, the malignant cells displayed enlarged nuclei, one to two prominent nucleoli, abnormal cytoplasmic keratin, and intercellular bridges (desmosomes), typical of squamous differentiation (Figure 3).
case_images: Epithelioid and spindled squamous cells are seen infiltrating amongst dermal tattoo pigment.
case_images: CRIM2010-431813.004.jpg
case_images: PMC3027001_01_CRIM2010-431813.004.jpg
case_images: fig4
case_images: Microscopically, a poorly differentiated carcinoma was present within a sun-damaged dermis, infiltrating amongst dermal tattoo pigment as single cells and nests (Figures 1-4).