Synchronous multiple carcinoma with small intestine and pulmonary neuroendocrine involvement: A case report

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Abstract

Rationale:

In clinical work, neuroendocrine synchronous multiplicity carcinoma was relatively rare. Most were confirmed by the pathological diagnosis of a certain part of the body combined with the imaging of the whole body, while cases that had both pathological and immunohistochemistry diagnosis were few.

Patient concerns:

A patient who presented with abdominal pain visited our hospital, and was diagnosed with lesions in both the small intestine and lung.

Diagnoses:

Both were considered primary tumors by imaging, and diagnosed as neuroendocrine carcinomas by pathology.

Interventions:

The intestinal lesion was surgically resected, and the lung tumor treated by chemoradiotherapy.

Outcomes:

The survival time of this patient exceeded 24 months.

Lessons:

The diagnosis relied on clinical, imaging, pathological, and immunohistochemical features, which confirmed a synchronous multiple carcinoma. Treatment was based on the pathological types. Through this case report, the clinical and pathological data of neuroendocrine synchronous multiplicity carcinoma could be enriched.

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