pathognomonic


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pathognomonic

[¦path·əg·nō′män·ik]
(medicine)
Characteristic of a given disease, enabling it to be distinguished from other diseases.
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Although there are some things that are more pathognomonic for PRP, like the Achilles tendon involvement and the keratoderma, for psoriasis we have nail pitting, which we don't usually see in PRP," Dr.
Ocular cystinosis is diagnosed when the pathognomonic refractive cystine crystal accumulations are observed throughout the conjunctiva and entire cornea (central and peripheral) on anterior segment examination.
The presence of hooklets on a necrotic and degenerated background was considered as pathognomonic for diagnosis of HD (Figure 1).
Immunocytochemistry shows foamy histiocytes with positive stain for CD68, which is pathognomonic for non-Langerhans cell histiocytes.
Radiological findings of bilateral adrenal enlargement and cortical calcifications with maintenance of the adreniform shape are pathognomonic.
The most pathognomonic feature of this entity is the perinuclear inclusion bodies, which usually are small, round, pale pink bodies on hematoxylin-eosin-stained slides that can indent the nucleus and appear similar to red blood cells (Figure 4).
Biett's collarette is a pathognomonic sign for secondary syphilis.
Characteristic intracytoplasmic oval shape Negri bodies with granular appearance are pathognomonic lesions that are more commonly observed in rabid brains, skin and salivary glands (Jamadagni et al.
2) The most common manifestations of NF1 in the skin is characterized by abnormal pigmentation and numerous cutaneous or subcutaneous neurofibromas, which are pathognomonic of NF1.
In this case, signs pathognomonic for leprosy included the hypopigmented, anaesthetic lesions; slowly erosive ulcers and distal loss of digits; thickened peripheral nerves with corresponding neuropathy and a cataract.
MRI demonstrated moderate knee osteoarthritis, a region of chondropathy in the medial tibial cartilage, and marked effusion with multiple fatty synovial proliferations, which is pathognomonic of lipoma arborescens (Figures 2 and 3).
As of date, a comprehensive review of the radiologic manifestation of ECD with pathognomonic features such as "hairy kidney" and "coated aorta" especially when it occurs in the same individual has rarely been reported.