A case of a woman of 23 years old with lesions in the exposed areas of the skin (face and lower neck) is presented. The histological study was compatible with pemphigus (subcorneal acantholysis and acantholytic cells). The direct immunofluorescence revealed the presence of IgG in intercellular spaces on all the surfaces of the epidermis. In the indirect immunofluorescence ANA (1/800), anti-DNA (1/200) and anti-ICS (1/200) was found. The rest of the analysis clearly showed thrombocytopenia and C4 consumption. The interesting aspect of this case rests in the coexistence of clinical and analytical findings of each of these of autoimmune diseases.