Hepatic breast cancer dissemination after an iatrogenic hepatic laceration during talc pleurodesis: a case report
© Bosch-Barrera and Espinós. 2010
Received: 2 February 2010
Accepted: 6 May 2010
Published: 6 May 2010
Talc pleurodesis is an effective treatment for malignant pleural effusion. We present a case of an asymptomatic hepatic laceration that occurred during pleurodesis in a breast cancer patient and led to hepatic tumor dissemination.
Pleurodesis is a relatively safe procedure, although previous studies have described malignant invasion of scar tissue.
To our knowledge, this is the first case report of tumor spread due to a liver puncture during talc pleurodesis in a breast cancer patient.
Malignant pleural effusion (MPE) is common in patients with advanced cancer . The primary neoplasms that most frequently cause MPE are lung cancer in men and breast cancer in women. Talc pleurodesis is a widely used technique for the treatment of MPE . We present a case report of an asymptomatic complication during talc pleurodesis that caused a hepatic dissemination of a breast tumor that was eventually fatal.
A 59-year-old woman was admitted to her reference hospital for dyspnea. Chest radiography showed a severe right pleural effusion. Her medical history included breast cancer (pT2pN1M0) diagnosed when she was 52, which was treated with surgery, adjuvant chemotherapy, adjuvant radiotherapy and hormonotherapy (3 years of tamoxifen and 2 years of letrozole). The patient did not have other diseases or congenital malformations and had not required previous abdominal or thoracic surgeries. The last normal follow-up was 2 months prior to her admission for the dyspnea. A thoracic tube was inserted, and 1,000 cc of pleural fluid was drained. After cytology revealed the presence of malignant breast cells, right-sided talc pleurodesis was performed. The patient had a good postoperative evolution, without fever or pain, and was discharged four days after the talc pleurodesis.
Talc pleurodesis is recognized as the procedure of choice for the treatment of MPE , and a meta-analysis has confirmed the superiority of talc as a sclerosing agent . However, some studies have generated concerns about the safety of the procedure [4–6]. The adverse effects reported include mild fever, chest pain and, more rarely, acute respiratory distress syndrome (ARDS), empyema, wound infection and malignant invasion of scar tissue [7, 8]. To our knowledge, this is the first case reporting a hepatic laceration due to talc pleurodesis followed by hepatic tumor spread.
A CT scan performed before of the pleurodesis did not show any hepatic lesion and liver tests were normal in that moment. In this patient, the initial diagnostic suspicion of a hepatic abscess was supported by the CT image, but normal blood tests and the absence of clinical symptoms ruled it out after 24 hours of observation. Consequently hormonal treatment was preferred over chemotherapy to avoid immunosuppression, which could have complicated the treatment of a hepatic infection.
We presumed that the advanced malignant hepatic progression was secondary to breast tumor cell dissemination due to the introduction of malignant pleural effusate into the liver. This condition could also have been the result of systemic dissemination, but no other locations exhibited disease progression and the hepatic dissemination was surprisingly rapid. Moreover, malignant invasion of scar tissue after talc pleurodesis has been described previously . Another possible explanation for the presence of tumor cells in the abdomen could be a direct communication between the abdominal cavity and thorax due to a diaphragmatic defect, but our patient did not have previous diaphragmatic defects. In 1998, Kirschner described the porous diaphragm syndrome (PDS) . The PDS is connected to the pass from the peritoneal cavity to the pleural space. We consider that the absence of ascites during the course of the disease and the presence of intrahepatic metastases without implants in the liver capsule excludes this possibility in our case.
To our knowledge, this is the first case report of tumor spread due to a liver puncture during talc pleurodesis in a breast cancer patient. This complication must be taken into account when pleurodesis is performed.
Written informed consent was obtained from the patient's relatives for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
malignant pleural effusion
Gamma glutamyl transpeptidase
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