To the Editor: Hyaline fibromatosis syndrome (HFS) is a rare autosomal recessive syndrome characterized by deposition of amorphous hyaline material in skin, subcutaneous tissue, and various other organs of the body resulting in papules and nodules over skin, joint contractures, gingival hypertrophy, osteopenia, and protein losing enteropathy [1, 2].

A 1-y-3-mo-old girl child was brought to genetic clinic in view of joint contractures. She is the first child of a third-degree consanguineous marriage. At 1 mo, mother noticed irritability while handling the child. By 3 mo of age, the child had difficulty in moving limbs due to development of contractures in wrist, ankle, knees, and shoulder joints. At 13 mo of age, the mother noticed reddish verrucous nodules over the nape of the neck which progressed to face and posterior aspect of trunk.

Physical examination showed patchy alopecia of scalp and verrucous, pink papulonodular lesions over face, neck, and trunk. Other manifestations included coarse facies with gum hypertrophy. A firm soft-tissue swelling was present at the mandibular region, near the midline. Flexion deformities were present at bilateral elbows, shoulders, and knees. Anthropometry showed weight between 3rd and 15th percentile, height between 50th and 85th percentile, weight for height < 3rd centile, and head circumference was normal. There was delay in gross motor and fine motor and normal social and language mile stones. All other systems and investigations were normal.

In view of peculiar phenotype, genetic study was done and it showed a pathogenic homozygous variant (c.1074delT; p.Ala359HisfsTer50) in exon 13 of the ANTXR2 gene (chromosome 4) which was previously been reported in patients affected with HFS from Brazil [3]. The index case had all these clinical features suggestive of HFS (Grade 2) [3, 4]. The couple should be offered genetic counseling and option of prenatal diagnosis in future pregnancy.