Asploro Journal of Biomedical and Clinical Case Reports

Asploro Journal of Biomedical and Clinical Case Reports

Lillian Jundi¹, Abha Sathe¹, Neuzil Lai², Forshing Lui^1*
1California Northstate University, College of Medicine, Elk Grove, California, USA
²Kaiser Permanente Medical Center, South Sacramento, Sacramento, California, USA

Corresponding Author: Forshing Lui MD ^{ORCID iD}
Address: California Northstate University, College of Medicine, 9700 West Taron Drive, Elk Grove, CA 95757, USA.
Received date: 15 July 2022; Accepted date: 27 July 2022; Published date: 03 August 2022

Citation: Jundi L, Sathe A, Lai N, Lui F. My Head is Getting Bigger: Macrocephaly with Cause Shown on CT Head – Clinical Image. Asp Biomed Clin Case Rep. 2022 Aug 03;5(2):89-90.

Copyright © 2022 Jundi L, Sathe A, Lai N, Lui F. This is an open-access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.

Keywords: Macrocephaly, Big Head, Bruxism, Clinical Image

A 19-year-old man with a BMI of 23.8 kg/m² (5 ft 7 in; 152 lbs) presented with the concern of 3 years of progressively enlarging head leading to an increase in hat size. The patient fulfilled the criteria for macrocephaly as his head circumference was 62 cm, which was above the 97^th percentile for his age. CT head revealed homogeneous bilateral hypertrophy of the temporalis, masseter, and medial pterygoid muscles with no evidence of a neoplastic process. While genetic syndromes can be a cause of out-of-range head circumference, familial and environmental factors can contribute to variations. In this case, the patient’s history revealed a history of bruxism since adolescence, however, no other physical or developmental abnormalities were noted. As a result, our case demonstrates bruxism and subsequent masticatory muscle hypertrophy as another possible cause of macrocephaly.