What causes lion face?
Leontiasis ossea is also known as ‘Lion face syndrome’ due to affected patient’s face resembling that of a lion, and it can be caused by Paget’s disease, fibrous dysplasia, gigantism, tumors of paranasal sinuses, syphilitic osteoperiostitis, and uremia with hyperparathyroidism.
What causes leonine facies in leprosy?
Patients often develop leonine facies because of diffuse involvement of the facial skin (Fig. 12.7). Borderline types of leprosy have clinical features between these extremes of immunologic reaction to the causative agent.
What are leonine facies?
Leonine facies is a face that resembles that of a lion. It is a rare clinical presentation and corresponds to the morphologic manifestation of diffuse dermal infiltration of the face. It has been classically described for lepromatous leprosy.
In which subtype of leprosy does a cutaneous manifestation known as leonine facies can be seen?
Leonine facies is rare and corresponds to the morphologic manifestation of diffuse dermal infiltration of the face. Papules fusing together into plaques resulting in grooves and fissures on the face create this appearance. It has been classically described for lepromatous leprosy.
What is a lion nose?
Noses. When a lion is born, it has a pink nose. As it ages, small, black spots appear. These grow in size and number until the nose is completely black, usually after 8 years.
What is botulism in Lions?
Naturally occurring botulism is a rare neurological disease in felids. Five circus lions (Panthera leo) were previously reported to suffer from clinical botulism (2). The lions presented with ataxia and weakness of the hind limbs and inability to swallow.
What are leonine features?
Leonine facies (LF) is defined as displaying facial features similar to that of a lion with prominent convexities and furrowed creases. LF develops in a very small population of patients with cutaneous T-cell lymphoma.
What is Histoid leprosy?
Histoid leprosy is rare type of lepromatous leprosy characterized by unique clinical, histopathological, and microbiological features. It is characterized by cutaneous and subcutaneous nodules. Histoid leprosy cases represent probable resistant bacilli and a highly active lepromatous process.
What is borderline leprosy?
Borderline leprosy is a cutaneous skin condition with numerous skin lesions that are red irregularly shaped plaques.
What is Paucibacillary?
Paucibacillary patients are those who are skin smear negative and show no evidence of more advanced disease on biopsy. Multibacillary patients are those who are skin smear positive and/or have a biopsy indicating more advanced disease.
What are people who have leprosy called?
Some consider the word leper offensive, preferring the phrase person affected with leprosy. Leprosy is classified as a neglected tropical disease.
What does facies mean in English?
1 : general appearance a plant species with a particularly distinct facies. 2 : an appearance and expression of the face characteristic of a particular condition especially when abnormal adenoid facies.
What are the cardinal signs of leprosy?
The cardinal signs of leprosy include hypoesthesia, skin lesions, and peripheral neuropathy. The first physical signs of leprosy are usually cutaneous. The subtype of leprosy often determines the degree of skin involvement.
Which stain is useful in leprosy?
Fite acid-fast stain for leprosy: Demonstrates the acid-fast organism Mycobacterium leprae by staining the cell walls a bright red. Gram stain/Brown and Brenn stain: Stains both cocci and bacilli and differentiates between gram-positive bacteria (purple) and gram-negative bacteria (reddish-pink).
What is the difference between tuberculoid and lepromatous leprosy?
Leprosy has traditionally been classified into two major types, tuberculoid and lepromatous. Patients with tuberculoid leprosy have limited disease and relatively few bacteria in the skin and nerves, while lepromatous patients have widespread disease and large numbers of bacteria.
Do any lions have spots?
Young lions have rosettes and spots on their sandy coats, but these generally disappear as they mature.
What are lions eyes?
Lion’s eyes are quite large with round pupils that are three times as big as a human’s. … At night, a reflective coating on the back of the eye helps to reflect the moonlight. This makes a lion’s eyesight eight times better than that of a human.
What color is a male lion?
Lion News. Lions have strong, compact bodies and powerful forelegs, teeth and jaws for pulling down and killing prey. Their coats are yellow-gold, and adult males have shaggy manes that range in color from blond to reddish-brown to black.
Can botulism occur in animals?
Many species of mammals and birds, as well as some fish, can be affected by botulism. Clinical disease is seen most often in wildfowl, poultry, mink, cattle, sheep, horses and some species of fish. Dogs, cats and pigs are resistant; botulism is seen occasionally in dogs and pigs but has not been reported from cats.
Where does leprosy exist?
Today, about 208,000 people worldwide are infected with leprosy, according to the World Health Organization, most of them in Africa and Asia. About 100 people are diagnosed with leprosy in the U.S. every year, mostly in the South, California, Hawaii, and some U.S. territories.
What is the word leonine mean?
: of, relating to, suggestive of, or resembling a lion.
Where is leprosy most commonly found in the world?
Where is leprosy found in the world today? The countries with the highest number of new leprosy diagnoses every year are India, Brazil, and Indonesia. More than half of all new cases of leprosy are diagnosed in India. In 2018 120,334 – or 57 per cent – of new cases of leprosy were found there.
What shape is Mycobacterium leprae?
Infectious Agent Leprosy is cause by infection with an intercellular pathogen known as Mycobacterium leprae. M. leprae is a strongly acid-fast, rod-shaped bacterium. It has parallel sides and rounded ends, measuring 1-8 microns in length and 0.2-0.5 micron in diameter, and closely resembles the tubercle bacillus.
What are Lepra reactions?
Lepra reactions are inflammatory reactions occurring in leprosy, due to circulating immune complexes, vasculitis, or T-cell reaction which may be induced by treatment.
Why is Grenz zone in leprosy?
The grenz zone is a narrow area of the papillary dermis uninvolved by underlying pathology. Historically believed to be a feature unique to granuloma faciale, this feature has also been observed in other cutaneous inflammatory conditions, infectious entities, and neoplastic benign and malignant tumors.
Is leprosy still around?
Leprosy is no longer something to fear. Today, the disease is rare. It’s also treatable. Most people lead a normal life during and after treatment.
What is dry leprosy?
Dry leprosy > anaesthetic leprosy. a form of leprosy chiefly affecting the nerves, marked by hyperesthesia succeeded by anaesthesia, and by paralysis, ulceration, and various trophic disturbances, terminating in gangrene and mutilation.
What is Multibacillary leprosy?
Multibacillary (MB), or lepromatous, Hansen’s disease is characterized by generalized or diffuse involvement of the skin, a thickening of the peripheral nerves under microscopic examination, and has the potential to involve other organs, the eyes, nose, testes, and bone.
Graduated from ENSAT (national agronomic school of Toulouse) in plant sciences in 2018, I pursued a CIFRE doctorate under contract with Sun’Agri and INRAE in Avignon between 2019 and 2022. My thesis aimed to study dynamic agrivoltaic systems, in my case in arboriculture. I love to write and share science related Stuff Here on my Website. I am currently continuing at Sun’Agri as an R&D engineer.