Diagnostic and clinical challenges of primary pulmonary solid adenocarcinoma with signet-ring cell features: a case report with unusual presentation and literature review

Conflict of interest

The authors declare no conflicts of interest, with no financial or personal relationships that could influence the research findings or conclusions.

Informed consent

Informed consent was obtained. To preserve anonymity, all identifying details were excluded, aligning with ethical standards for rare case reporting.

Human rights statement

This case report was conducted with respect for the patient's human rights, including dignity, confidentiality, and privacy, in accordance with international ethical standards, such as the Declaration of Helsinki. No identifiable information has been included, and all efforts were made to ensure patient anonymity. All case details have been presented with sensitivity to ethical considerations, focusing solely on clinical insights relevant to advancing medical knowledge in rare cases of signet-ring cell lung adenocarcinoma. This approach aligns with the ethical obligation to contribute to scientific research while maintaining the utmost respect for patient rights.

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