Clear Cell Carcinoma of the Thymus: An Improbable Enemy
  • Fábio Rêgo Salgueiro
    Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal https://orcid.org/0000-0002-8243-6750
  • Paulo Cunha
    Internal Medicine Department, Coimbra University Hospital Centre, Coimbra, Portugal
  • Diana Miranda
    Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
  • Tatiana Pereira
    Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
  • Filipa Pontes
    Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
  • Ana Caetano
    Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
  • Joana Monteiro
    Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal

Keywords

Thymic carcinoma, mediastinal tumour

Abstract

Introduction: Thymic clear cell carcinoma is the most uncommon subtype of thymic carcinoma, with 20 cases reported worldwide.
Case Description: We present the case of a 61-year-old female with dyspnoea and chest pain for 2 days. Computed tomography (CT) angiography showed pulmonary thromboembolism and the existence of mediastinal and bilateral hilar lymphadenopathy, the largest infracarinal with an inferior axis of 25 mm, and also, micronodules on the left pulmonary parenchyma. The patient was admitted for aetiological assessment and underwent anticoagulant therapy. After a month, she had an ischaemic stroke, the sequelae of which proved to be fatal. The autopsy showed a mass in the superior-anterior mediastinum, with dimensions of 11×8×6 cm, corresponding to a thymus signet ring cell primary carcinoma. The immunohistochemistry study revealed that this mass was positive for AE1/AE3, CK5/6 and CK7.
Conclusion: The clinical, morphological and immunophenotypic diversity of this tumour makes its diagnosis a difficult multidisciplinary challenge, which requires a high level of clinical knowledge and accurate imaging and histological investigation.

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    Published: 2021-02-26
    Issue: 2021: Vol 8 No 2 (view)

    How to cite:
    1.
    Rêgo Salgueiro F, Cunha P, Miranda D, Pereira T, Pontes F, Caetano A, Monteiro J. Clear Cell Carcinoma of the Thymus: An Improbable Enemy . EJCRIM 2021;8 doi:10.12890/2021_002224.

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