A case of congenital hemifacial hypertrophy is described. This rare condition is more prevalent in males, and it is characterized by facial asymmetry. Sometimes, Hemifacial hypertrophy can lead to obstruction of the respiratory airway which may prove lethal. Here we made an attempt to present a complicated female case of true congenital hemifacial hypertrophy with its clinical, radiological presentation and surgical treatment. No single theory for hemifacial hypertrophy explains the etiology adequately. A 19-month-old female child was referred to our hospital with difficulty in breathing. She had Hemifacial hypertrophy presents with neck swelling, enlarged ear pinna with hyperpigmentation, and hypertrichosis. Radiological imaging was done, and it was diagnosed as congenital hemifacial hypertrophy. A mass obstructing the oropharynx with tonsillar enlargement was noted. Transoral endoscopic coablator-assisted excision of the oropharyngeal mass with tonsillar excision was done and the airway was secured. The neck fatty mass was excised externally. Follow-up was done for two years. Congenital Hemifacial hypertrophy is a rare congenital condition and has a good prognosis. Generally, Hemifacial hypertrophy presents with neck swelling, enlarged ear pinna with hyperpigmentation, and hypertrichosis. sometimes when presented with respiratory obstruction it can prove fatal which can be managed by securing the airway immediately. Here this case was managed with endoscopic surgical excision of obstruction and no further complications were noted.
UNASSIGNED: The online version contains supplementary material available at 10.1007/s12070-024-04525-x.

Condylar hyperplasia is known to result in facial asymmetries and constitutes a well-recognized group of unilateral mandibular enlargements. Condylar hyperplasia has been sub-classified into hemimandibular hyperplasia and hemimandibular elongation. A much rarer disorder, hemifacial hyperplasia (or hemifacial hypertrophy) is a congenital malformation characterized by prominent unilateral overdevelopment of the hard and soft tissues of the face. The affected side grows at a faster rate than the non-affected side, creating a marked asymmetry that potentially involves the skeleton and teeth, as well as all components of the associated soft tissues. Hemifacial hyperplasia is usually identified at birth and progresses towards puberty, but is not thought to alter throughout the lifetime of affected individuals. A case series of five patients clinically diagnosed with hemifacial hyperplasia is presented, with the aim of reviewing the clinical features, discussing their individual surgical management, and summarizing the more recent identification of possible genetic mutations that may be responsible for hemifacial hyperplasia and related overgrowth disorders. It is speculated that depending on the genetic factors, the disorder may be progressive in specific cases.