case_images: PMC8191566_01
case_images: Three-dimensional computed tomography showing ossifying mass abutting anterior border of the mandible
case_images: NJMS-12-120-g001.jpg
case_images: PMC8191566_01_NJMS-12-120-g001.jpg
case_images: F1
case_images: Computed tomography scan showed a radiodense mass extending in front of the anterior border of the ramus of the mandible, suggestive of ossified masseter muscle [Figure 1].
case_images: Magnetic resonance imaging showing mild edema surrounding left masseter and heterotopic bone formation
case_images: NJMS-12-120-g002.jpg
case_images: PMC8191566_01_NJMS-12-120-g002.jpg
case_images: F2
case_images: T1-T2 intermediate signal intensity lesion with mild surrounding edema in the substance of left masseter muscle, abutting the ramus of left mandible likely to represent heterotopic bone formation (at the expected location of previous surgery for thorn extraction) [Figure 2]. This finding along with a history of trauma led us to the diagnosis of MOT.
case_images: PMC8191566_02
case_images: (a-c) Femur radiograph taken at interval dated June 17, 2016; July 21, 2016; and August 11, 2016 showing progress of ossification
case_images: NJMS-12-120-g003.jpg
case_images: PMC8191566_02_NJMS-12-120-g003.jpg
case_images: F3
case_images: Subsequent three X-rays of the leg were taken at an interval of 1 month which showed progressive increase in ossification [Figure 3a-c].
case_images: Postoperative lower extremities X-ray showing heterotopic bone with branching tree pattern
case_images: NJMS-12-120-g004.jpg
case_images: PMC8191566_02_NJMS-12-120-g004.jpg
case_images: F4
case_images: Postoperative radiograph of the leg showed cord-like ossification of the muscles and soft tissue of the left leg giving pattern of branching tree [Figure 4].
case_images: Trismus and nil mouth opening
case_images: NJMS-12-120-g005.jpg
case_images: PMC8191566_02_NJMS-12-120-g005.jpg
case_images: F5
case_images: Local examination of the face showed that the mouth opening was reduced to nil [Figure 5].
case_images: Scar mark of previous surgery and nonbending of leg also bony exostosis seen near ankle
case_images: NJMS-12-120-g006.jpg
case_images: PMC8191566_02_NJMS-12-120-g006.jpg
case_images: F6
case_images: A full-body examination revealed ossifications and a scar mark of previously operated site in the left leg regions [Figure 6].
case_images: Microdactyly of the great toe on both the feet
case_images: NJMS-12-120-g007.jpg
case_images: PMC8191566_02_NJMS-12-120-g007.jpg
case_images: F7
case_images: In addition, microdactyly of the great toe on both the feet was seen [Figure 7].