An infiltrative angioarchitectural variant of arteriovenous malformation of temporalis

Vascular anomalies of the head and neck region pose a certain diagnostic and therapeutic paradox. Management of arteriovenous malformations (AVM) is a challenge owing to the presence of abnormal vascular communications and high recurrence. We report a case of a 19-year-old male patient, who presente...

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Bibliographic Details
Published in:Journal of clinical and diagnostic research 2014-09, Vol.8 (9), p.ZD04-ZD06
Main Authors: Byatnal, Aditi Amit, Rakheja, Mahima, Byatnal, Amit Raghavendra, Narayanaswamy, Venkadasalapathy, Radhakrishnan, Raghu
Format: Article
Language:English
Subjects:
arteriovenous malformations
Dentistry
elastic stains
magnetic resonance angiography
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Summary:Vascular anomalies of the head and neck region pose a certain diagnostic and therapeutic paradox. Management of arteriovenous malformations (AVM) is a challenge owing to the presence of abnormal vascular communications and high recurrence. We report a case of a 19-year-old male patient, who presented with diffuse swelling in the right temporal region. Magnetic Resonance Angiography (MRA) suggested it to be an AVM in the temporalis muscle, having afferents in the ascending pharyngeal artery, with cavernous angioma. Surgical excision of the lesion was carried out under carotid control. Histopathology of the excised specimen utilizing special stains confirmed the presence of AVM. An absence of distinct nidus concomitant along with the exuberant proliferation of capillaries between the muscle fibres suggested it be an infiltrative angioarchitectural variant. The present case highlights significance of diagnosing AVM in temporalis muscle which is a rare occurrence in head and neck region. Also, the importance of ruling out other closely resembling vascular diathesis, both non neoplastic and malignant is discussed.
ISSN:2249-782X
0973-709X
DOI:10.7860/JCDR/2014/8109.4779