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BMC Cardiovasc Disord. 2018 Jul 9;18(1):142. doi: 10.1186/s12872-018-0876-3.

Complete atrioventricular block as an initial manifestation of recurred oral cavity cancer: a case report.

Author information

1
Department of Cardiovascular Medicine, Chonnam National University Hospital, 42 Jebong-ro, Dong-gu, Gwangju, 61469, South Korea.
2
Department of Cardiovascular Medicine, Chonnam National University Hospital, 42 Jebong-ro, Dong-gu, Gwangju, 61469, South Korea. cvkimkh@gmail.com.

Abstract

BACKGROUND:

Intracardiac invasion of head and neck cancer is extremely rare. Here, we report a case of recurred oral cavity cancer presenting with complete atrioventricular (AV) block caused by cardiac metastasis.

CASE PRESENTATION:

A 70-year-old male presented with dizziness for 2 days. He had a history of oral cavity cancer a year ago, and the tumor was treated by surgical excision after induction chemotherapy and concurrent chemoradiation therapy. Electrocardiography showed complete AV block with ventricular escape rate of 43 beats per minute. Cardiac imaging revealed about 4.0 × 2.0 cm-sized mass invading interventricular septum and AV nodes and protruding into the right ventricle. Magenetic resonance imaging of head and neck demonstrated recurred mass in oral cavity and maxillary sinus. Fluorodeoxyglucose-positron emission tomography showed hypermetabolic lesion in both oral cavity and the heart around interventricular septum and atrioventricular node indicating recurred oral cavity cancer with cardiac metastasis. Permament pacemaker of DDD type was implanted for the symptomatic complete AV block, and palliative chemotherapy was initiated.

CONCLUSION:

The present case demonstrated that oral cavity cancer can metastasize to the heart, and complete AV block may be an initial manifestation of the recurrence of extracardiac cancer with intracardiac invasion.

KEYWORDS:

Atrioventricular block; Metastasis; Oral cancer; Recurrence

PMID:
29986652
PMCID:
PMC6038339
DOI:
10.1186/s12872-018-0876-3
[Indexed for MEDLINE]
Free PMC Article

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