Paeds 5 - Allergy, Infection, GU Flashcards
From what do the testis form?
Urogenital ridge
What type of inguinal hernias occur in children and what is the cause?
Direct
Patent processus vaginalis
What are the symptoms of direct inguinal hernias?
Intermittent swelling in groin/scrotum, firm and tender lump
May become more obvious with increased intra-abdominal pressure
What is a hydrocele?
A transilluminating scrotal swelling
Accumulation of fluid secreted by the tunica vaginalis
What is a varicocele?
Varicosities of the testicular veins, usually left sided.
What is an undescended testis?
Cryptorchidism
A testis that has been arrested along its normal pathway of descent
What are the risk factors for undescended testis?
Pre term (descent through inguinal canal occurs in 3rd trimester)
What are the three types of undescended testis?
Retractile (pulled up by overactive cremasteric muscle)
Palpable
Impalpable
How is undescended testis investigated?
Ultrasound
Laparoscopy if bilateral
Orchidopexy
What are the symptoms of testicular torsion?
Severe testicular pain referred to groin or lower abdomen
Nausea and vomiting
Erythema and oedema, tenderness
Pain worsened by lifting up the testicle
Absence of cremasteric reflex on affected side
What are the medical indications of circumcision?
Phimosis/paraphimosis
Recurrent balanoposthitis
Recurrent UTIs
Define allergy
A hypersensitivity reaction initiated by specific immunological mechanisms
Define atopy
A personal or family tendency to produce IgE antibodies in response to ordinary exposures to potential allergens
What are the symptoms of food allergy?
Urticaria, angioedema, anaphylaxis
What are the symptoms of food intolerance?
Diarrhoea, vomiting, abdominal pain, failure to thrive, eczema
How is IgE food allergy diagnosed?
Skin prick tests and RAST test (measures specific IgE in blood)
How is lactose intolerance diagnosed?
Stool chromatography
Lactose hydrogen breath test
What are the forms of allergic rhinoconjunctivitis?
Seasonal and perennial
How is allergic rhinoconjunctivitis treated?
2nd generation anti-histamines Topical corticosteroids Cromoglycate eye drops Montelukast Nasal decongestants
What is the treatment of anaphylaxis?
IM adrenaline
What is impetigo?
Bacterial infection of the skin
How does the treatment of uncomplicated impetigo and bullous impetigo differ?
Uncomplicated - fusidic acid
Bullous - PO flucloxacillin or clarithromycin
What is the main risk of melanocytic naevi?
Malignant transformation to melanoma
What causes albinism?
Defect in biosynthesis and distribution of melanin