The detail information of Histiocytosis
Basic Information

Disease Description: Histiocytic syndromes are a complex group of disorders which overlap.

Inherit Mode: The disorder has a polygenic mode of inheritance in the Bernese mountain dog. The disorder is also more common in the other breeds listed below.

Disease Symptom: In both systemic and malignant histiocytosis, signs of illness include loss of appetite, weight loss, and lethargy. In systemic histiocytosis, there are skin lesions (crusting, firm nodules, ulcers) but these are uncommon in malignant histiocytosis. Both affect middle-aged to older dogs, while cutaneous histiocytosis occurs in younger dogs.There may be periods of remission with systemic histiocytosis, but ultimately the histiocytes infiltrate other organ systems especially the lungs, liver, spleen, bone marrow, and lymph nodes. Malignant histiocytosis is a rapidly progressive and invasive disorder, which commonly metastasizes to the lungs.

Disease Cause: -

Disease Diagnose: The clinical signs of this disorder vary depending on where metastasis of abnormal cells occurs. Tumours in the lungs are common, causing respiratory signs such as coughing and shortness of breath. Your veterinarian will likely suspect a tumour based on clinical signs, radiology, and blood tests; he or she will submit tissue samples to a pathologist for histopathologic examination to determine the type of tumour.

Treat Method: Malignant histiocytosis spreads rapidly and metastasis is generally present at the time of diagnosis, so that surgical treatment is ineffective. Dogs with systemic histiocytosis may experience periods of remission, or the disease may progress rapidly. Various types of chemotherapy have been tried for both types of histiocytosis, but with little success.Your veterinarian will work with you to keep your dog as comfortable as possible, until the quality of life deteriorates to the point where euthanasia is the best treatment option.

Breeder Advice: Because this invariably fatal disorder generally does not develop until the dog is middle-aged or older, it can be hard to identify parents that carry the trait. It is very important that the veterinarian and/or owner inform the breeder when this disorder has been diagnosed, so that he or she can modify the breeding programme accordingly, to limit the spread of the harmful gene(s) in the Bernese mountain dog population.

Disease Description Source: Link

Associated Diseases
Disease Name Other Name Mode of inheritance Link ID Possible OMIM ID Gene
Histiocytosis, malignant - Multifactorial - TP53
Associated Breeds
iDog Breed Number Breed Name Personality Height Weight Breed Source
CB34 Bernese Mountain Dog Good-natured and calm. 63.5-71.1 cm (male), 58.4-66 cm (female) 39-49.9 kg (male), 35.8-49.9 kg (female) Switzerland
CB105 Flat-Coated Retriever Happy, confident, intelligent, and forever young 58.4-62.2 cm (male), 55.9-59.7 cm (female) 27.2-31.8 kg United Kingdom
CB116 Golden Retriever Intelligent, friendly, and devoted. 58.4-61 cm (male), 54.6-57.2 cm (female) 29.5-34 kg (male), 24.9-29.5 kg (female) United Kingdom (Scotland)
CB205 Rottweiler Reserved with strangers and affectionate and loyal with his family. 61-68.6 cm (male), 55.9-63.5 cm (female) 49.9-59 kg (male), 34.9-49.9 kg (female) Germany
References
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