Explore 15,964+ rare diseases with trusted, clear information
Medical professionals review and validate information.
Expert Stewards stand behind their work.
Patients and families contribute real-world insights.
Showing 121-140 of 15,964 diseases
MONDO:0016854
49, XXXYY syndrome is a rare chromosomal condition that occurs when a male inherits two extra copies of the X chromosome and one extra copy of the Y c...
MONDO:0020470
49,XYYYY syndrome is a rare genetic condition caused by an abnormal count of Y chromosomes. People with this syndrome usually experience moderate to s...
MONDO:0019873
4p16.3 microduplication syndrome is a rare genetic condition caused by a partial duplication of the short arm of chromosome 4. People with this condit...
MONDO:0044717
4q25 proximal deletion syndrome is a rare condition where a part of chromosome 4, specifically in the q25 region, is missing. Because the deletion is...
MONDO:0016312
5-fluorouracil poisoning is a rare condition that occurs due to the prolonged, low-dose use of 5-fluorouracil, a drug commonly used in chemotherapy fo...
MONDO:0022333
5-nucleotidase syndrome is a rare disease. Detailed information about this condition is currently limited in medical literature.
MONDO:0009825
5-oxoprolinase deficiency is a rare condition that affects the body’s ability to process a chemical called 5-oxoproline. This condition is described a...
MONDO:0016456
5q14.3 microdeletion syndrome is a rare condition that results from a small deletion in the 5q14.3 region of one chromosome. It has been described in...
MONDO:0016461
5q35 microduplication syndrome is a newly described rare genetic condition. It is characterized by features such as microcephaly (a smaller than usual...
MONDO:0020457
Information about the overall condition is currently limited for this condition. Further detailed descriptions are not available at this time.
MONDO:0016655
6p22 microdeletion syndrome is a recently identified condition. It is associated with a variable clinical phenotype that may include developmental del...
MONDO:0019164
6q terminal deletion syndrome is a rare condition characterized by a distinct facial appearance, including specific facial dysmorphism, as well as a s...
MONDO:0015749
6q16 deletion syndrome, also known as Del(6)(q16), Prader-Willi-like syndrome due to deletion 6q16, or monosomy 6q16, is a condition where a small par...
MONDO:0971095
Information about overview is currently limited for this condition. There is not enough detailed public information about the characteristics or defin...
MONDO:0017792
7p22.1 microduplication syndrome is a rare condition that happens because of a small extra copy of part of the short arm of chromosome 7. This extra g...
MONDO:0012342
7q11.23 microduplication syndrome is a chromosomal copy-number condition caused by an extra segment on the long arm of chromosome 7. The duplication a...
MONDO:0016656
Information about the overview is currently limited for this condition.
MONDO:0019876
8p inverted duplication/deletion syndrome is a rare chromosomal anomaly. It is characterized by a combination of mild to severe intellectual deficits...
MONDO:0016657
8p11.2 deletion syndrome is a condition caused by missing pieces of genetic material from a small part of chromosome 8. This syndrome is known as a co...
MONDO:0016659
8p23.1 duplication syndrome is a rare chromosomal condition caused by a partial duplication of the short arm of chromosome 8. People with this conditi...