Cases reported "Nut Hypersensitivity"

Filter by keywords:



Filtering documents. Please wait...

1/3. food allergy masquerading as foreign body obstruction.

    BACKGROUND: Allergic reactions to peanut and tree nuts can present as upper airway obstruction. OBJECTIVE: To increase awareness that food allergy should be considered in the differential diagnosis of upper airway obstruction in children. methods: We report an allergic reaction to cashew that was initially misdiagnosed as foreign body aspiration. RESULTS: When the presenting signs and symptoms of food allergy are limited to upper airway obstruction, they can be confused with foreign body aspiration. CONCLUSIONS: As peanuts and tree nuts are common causes of both food allergy and foreign body aspiration in children, both of these diagnoses should be considered in the differential diagnosis of airway obstruction.
- - - - - - - - - -
ranking = 1
keywords = tree
(Clic here for more details about this article)

2/3. anaphylaxis due to brazil nut skin testing in a walnut-allergic subject.

    The diagnosis and management of nut allergy can be difficult because of the possible severity of the clinical manifestations and the cross reactivity between different species. We report a case of anaphylaxis due to skin testing in a young adult with clinically ascertained walnut allergy. After an episode of anaphylaxis due to walnut ingestion, a routine diagnostic workup was carried out, involving skin prick test with commercial extracts, prick by prick with fresh food and CAP-RAST assay for different nuts. Immediately after pricking with fresh brazil nut, a severe episode of anaphylaxis occurred, that required epinephrine and intravenous steroids. The subject had never eaten brazil nut before. Therefore we hypothesize a cross reactivity effect, since this phenomenon is well known for tree nuts. Our case suggests that in vivo diagnosis, especially if fresh nuts are used, should be performed only if adequate equipment to treat anaphylaxis is available.
- - - - - - - - - -
ranking = 0.5
keywords = tree
(Clic here for more details about this article)

3/3. Late diagnosis of tree nut and sesame allergy in patients previously sensitized but tolerant to peanut.

    BACKGROUND: Recent studies have indicated that tolerance to peanut can occur in patients with a history of peanut allergy. Tree nut and sesame allergies have been reported to occur at increased incidence in patients with peanut allergy. Although the coexistence may be simply due to a predisposition to food allergy in these individuals, cross-reactivity has been demonstrated between peanut and tree nuts and between peanut and sesame seed. OBJECTIVE: To describe 3 patients previously sensitized but tolerant to peanut who were subsequently diagnosed as having either tree nut or sesame allergy. methods: All the patients had a clinical history of peanut sensitivity and underwent follow-up peanut skin testing to commercial extracts using a bifurcated needle followed by a graded peanut challenge. One patient had a previous positive radioallergosorbent test reaction to sesame and underwent a graded sesame challenge. RESULTS: All the patients had negative peanut challenge results. Two patients subsequently had exposure to tree nuts at home and had systemic reactions and positive skin test reactions to the incriminated tree nut. One patient had a positive challenge reaction to sesame. CONCLUSION: Demonstration of tolerance to peanut may falsely reassure patients and physicians that patients no longer need to avoid tree nuts or sesame. Tree nut and sesame allergies can exist or develop in patients despite the development of tolerance to peanut.
- - - - - - - - - -
ranking = 4.5
keywords = tree
(Clic here for more details about this article)


Leave a message about 'Nut Hypersensitivity'


We do not evaluate or guarantee the accuracy of any content in this site. Click here for the full disclaimer.