Directory
Osteomesopyknosis
Osteomesopyknosis is a rare disorder characterized by abnormal bone growth, which disrupts the normal ...
Osteomyelitis
Osteomyelitis is an infectious and inflammatory disease of bone tissue that can affect both compact and spongy bone...
Osteomyelitis in children
Osteomyelitis in children is an acute or chronic inflammation of the bone marrow, bone tissue and periosteum caused by an infectious process...
Osteonecrosis
Osteonecrosis is a pathological condition characterized by necrosis of bone tissue, which occurs as a result of insufficient blood supply to the...
Osteopathy Striata Cranial Sclerosis
Striatal Osteopathy Cranial sclerosis, also known as osteogenesis imperfecta, is a rare genetic disorder that causes...
Osteopenia
Osteopenia is a condition characterized by decreased bone mass and deterioration of bone microstructure, which increases the risk of fractures...
Osteopetrosis
Osteopetrosis is a rare inherited disorder characterized by abnormal thickening and increased density of bone tissue in the re...
Osteopetrosis autosomal recessive type 3
Osteopetrosis type 3 with autosomal recessive inheritance is a rare genetic disorder characterized by abnormal...
Osteopoikilosis
Osteopoikilosis is a rare genetic disorder characterized by abnormal bone formation, resulting in excessive bone formation...
Osteoporosis
Osteoporosis is a systemic disease characterized by decreased bone mineral density and impaired...
Osteosarcoma
Osteosarcoma is a malignant tumor that primarily develops in bone tissue. Most often, it occurs in the metaphyses of the...
Osteosclerosis Autosomal dominant
Osteosclerosis, autosomal dominant, is a hereditary disease characterized by an abnormal increase in bone density...
Osteochondroma
Osteochondroma is a large benign bone tumor that arises from cartilage and is often located on the surface of ...
Otitis
Otitis is an inflammatory disease of the ear that can affect various parts of the ear, including the outer, middle and inner ear. ...
Otosclerosis
Otosclerosis is a pathological change characterized by abnormal growth of bone tissue in the middle ear, which leads to...
Otospondylomegaepiphyseal dysplasia
Otospondylomegaepiphyseal dysplasia (OMIM 186850) is a rare genetic disorder that belongs to a group of disproportionate forms of...
Ophthalmoacromelic syndrome
Ophthalmoacromelic syndrome (OAS) is a rare genetic disorder characterized by multiple abnormalities in the development of the ocular...
Ochronosis
Ochronosis is a rare genetic disorder caused by a defect in tyrosine metabolism, resulting in the accumulation of intermediate tyrosine...
Squamous cell carcinoma of the oral cavity
Oral squamous cell carcinoma (SCC) is a malignant tumor that develops from the squamous epithelial cells lining the oral cavity.
Occupational asthma
Occupational asthma is a chronic inflammatory disease of the airways that occurs as a result of exposure to airborne...
Occupational hearing loss
Occupational hearing loss (OHL) is a permanent impairment of hearing function that develops as a result of exposure to noise...
Pseudotumor of the orbit
Orbital pseudotumor is a rare disorder characterized by the formation of masses in the orbital region that are clinically ...
Oral cancer
Oral cancer is a malignant neoplasm that develops from the tissues of the oral cavity, including the lips, tongue, ...
Ovarian cancer
Ovarian cancer is a malignant neoplasm originating from ovarian cells. This disease is characterized by neoplas...
Opioid use disorder
Opioid use disorder is a serious condition associated with excessive and uncontrolled use of opioids.
Ogilvie's syndrome
Ogilvie's syndrome, also known as "acute pseudo-colonic disorder" or "toxic dilated colon syndrome," is a...
Olmstead syndrome
Olmsted syndrome is a rare genetic disorder characterized by multiple abnormalities of the skin, fibro...
Omenn syndrome
Omenn syndrome is a rare but serious genetic disorder characterized by immune system disorders and dermatological...
Opitz syndrome G. BBB
Opitz G/BBB syndrome is a rare genetic disorder characterized by multiple abnormalities in the...
Ohdo syndrome, Say-Barber-Biesecker-Young-Simpson variant
Ohdo syndrome, a variant of Say-Barber-Biesecker-Young-Simpson, is a rare genetic disorder characterized by a variety of cl...
