Minor Lesions Flashcards
What are the causitive organisms of paronychia?
Staph
Strep pyogenes
What is the most frequent organism in chronic paronychia?
Candida
What is essential for the treatment of onychia? (Abcess under nail bed)
Removal of proximal portion of nail over abcess
When is systemic antibiotic treatment indicated for paronychia?
If there is associated lymphangitis
In what age is herpetic whitlow most common?
< 2 years
When should parenteral acyclovir be considered for herpetic whitlow?
Immunocompromised patient
What is a felon?
deep infection of the distal pulp space of the fingertip
What are the potential complications of a felon?
osteomyelitis, flexor tenosynovitis, and septic arthritis of the distal interphalangeal (DIP) joint.
How is a felon treated?
Incision & drainage + oral abx
Must extend excision beyond DIP to prevent contracture
How should you treat the finger/nail after subungual foreign body removal?
soaked in warm, soapy water, and an antibiotic ointment and protective dressing applied. The finger should be soaked three times a day for 3 to 5 days.
Where should the incision be made to cut a hair tourniquet off a penis?
3 or 9 o’clock or at 4 or 8 o’clock along the penile shaft
What is a ganglion?
cystic outgrowth of the synovial lining of a tendon sheath or joint capsule
Where are ganglions commonly found?
dorsal or volar surface of the wrist (usually on the radial side), the dorsum of the foot, and near the malleolus of an ankle
What is the recurrence rate of ganglions after excision?
20%
What does an epidermal inclusion cyst look like?
firm, slow-growing round nodules that can range in size from a few millimeters to centimeters
Where are epidermal inclusion cysts found?
solitary lesions found about the scalp and face, although they also may be located on the trunk, neck, and scrotum
What is Gardner syndrome?
autosomal dominant disorder characterized by multiple EICs, intestinal polyposis, desmoid tumors, and osseous lesions
High risk of intestinal malignancy
How can dermoid cysts be distinguished from EICs?
younger age distribution and histologically by the possible presence of hair, glands, teeth, bone, and neural tissue, as well as keratin.
sites include the nasal bridge, midline neck, or scalp; the lateral brow (Fig. 120.5); anterior margin of the sternocleidomastoid; and midline scrotum or sacrum
Why should midline dermoid cysts have imaging?
may have sinus tracts with deeper attachments extending intracranially or intraspinally
What is a glioma?
benign growths composed of ectopic neural tissue derived from embryonic glial tissue
What do gliomas look like clinically?
firm, gray, or red-gray nodule, ranging in size from 1 to 5 cm and can be mistaken for a hemangioma. Most are extranasal (60%), occurring on the bridge of the nose. The remainders are either solely intranasal masses (30%) or have both intranasal and extranasal elements (10%)
What is an encephalocoele?
neural tissue that has herniated through a congenital defect in the midline of the calvarium