Tatton-Brown-Rahman syndrome

An overgrowth syndrome characterized by a distinctive facial appearance, tall stature and intellectual disability. Facial gestalt is characterized by a round face, heavy horizontal eyebrows and narrow palpebral fissures. Less common features include atrial septal defects, seizures, umbilical hernia, and scoliosis.

Pheochromocytoma/paraganglioma syndrome 4

A form of pheochromocytoma/paraganglioma syndrome, a tumor predisposition syndrome characterized by the development of neuroendocrine tumors, usually in adulthood. Pheochromocytomas are catecholamine-producing tumors that arise from chromaffin cells in the adrenal medulla. Paragangliomas develop from sympathetic paraganglia in the thorax, abdomen, and pelvis, as well as from parasympathetic paraganglia in the head and neck. PPGL4 inheritance is autosomal dominant.

Hirschsprung disease 1

A disorder of neural crest development characterized by absence of enteric ganglia along a variable length of the intestine. It is the most common cause of congenital intestinal obstruction. Early symptoms range from complete acute neonatal obstruction, characterized by vomiting, abdominal distention and failure to pass stool, to chronic constipation in the older child.

Erythrocytosis, familial, 4

An autosomal dominant disorder characterized by elevated serum hemoglobin and hematocrit, and normal platelet and leukocyte counts.

Pheochromocytoma/paraganglioma syndrome 1

A form of pheochromocytoma/paraganglioma syndrome, a tumor predisposition syndrome characterized by the development of neuroendocrine tumors, usually in adulthood. Pheochromocytomas are catecholamine-producing tumors that arise from chromaffin cells in the adrenal medulla. Paragangliomas develop from sympathetic paraganglia in the thorax, abdomen, and pelvis, as well as from parasympathetic paraganglia in the head and neck. PPGL1 inheritance is autosomal dominant.

Pheochromocytoma

A catecholamine-producing tumor of chromaffin tissue of the adrenal medulla or sympathetic paraganglia. The cardinal symptom, reflecting the increased secretion of epinephrine and norepinephrine, is hypertension, which may be persistent or intermittent.