Metastases of the skin from visceral carcinoma are uncommon. The frequency varies from 0.7% to 9.0%.1 Such wide variation may represent in part the diligence with which cutaneous metastases are sought. In skin metastases, the most frequent primary tumors in men are carcinoma of the lung, carcinoma of the large intestine, melanoma, and squamous cell carcinoma of the oral cavity.2,3 In women, they are carcinoma of the breast, carcinoma of the large intestine, melanoma, and carcinoma of the ovary.2,3 Metastatic carcinoma of the pancreas involving the skin is rare. Brownstein and Helwig 2 recorded 15 cases in 724 patients with metastatic tumors. In studying 50 patients with cutaneous metastases, Tharakaram 4 could not record any case of pancreatic origin. Furthermore, skin metastases as the presenting sign of a pancreatic carcinoma are even more uncommon. Miyahara et al. 5 reviewed the literature and found only 20 cases in which the cutaneous metastases were present prior to the diagnosis of pancreatic carcinoma.Solid organ transplantation with immunosuppression is associated with an increased incidence of tumors occurring in the recipient. However, pancreatic carcinoma has a very low incidence in transplanted patients. 6 We report a transplanted patient who presented with multiple metastatic lesions in the skin, developing quickly, as the first sign of pancreatic carcinoma. As far as we know, this event has not been reported in a transplant recipient.
Case ReportA 51-year-old extremely obese woman presented in September 1995 with a three-month history of multiple nodules in the skin of the neck, thorax, abdomen and both legs. The nodules appeared 15 days after an episode of acute laryngitis and had gradually enlarged. One nodule located in the left popliteal region made it difficult for the patient to stand up. Her past medical history revealed a renal transplantation for end-stage kidney disease in September 1992. Post-transplant treatment included cyclosporin A, prednisolone, and azathioprine. The patient had no rejection episodes in the interval.Physical examination disclosed multiple nodules on the neck, thorax, abdomen, back and both legs. These nodules were bluish, 1-4 cm in diameter, firm in consistency, and tender to palpation. A punch biopsy was performed on an abdominal nodule. Pathological examination showed anaplastic carcinoma, with abundant clear cells, dermo-hypodermal in location. The source of the tumor was not conclusive. Routine blood tests revealed normochromic anemia, with a hemoglobin of 9.8 g/dL and hematocrit of 29.6%. Serum hCG and AFP levels were normal. Serum LDH and uric acid were 721 U/L and 8.9 mg/dL, respectively. X-ray and CT scan of the chest showed a 3-cm round mass in the left lung close to the hilum, consistent with pulmonary metastasis. Abdominopelvic CT scan showed no abnormalities. A gammagraphic study revealed pathologic uptake in both left femoral condyles. Immunosuppression regime was continued. Several days later, the patient developed diplopia, right exophthalmos, and con...