Dermatology

2022-09-01 14:50:01 76) Explanation

• The image shows multiple, rounded, dome-shaped, pink, waxy papules that are umbilicated and contain a caseous plug. The diagnosis is Molluscum contagiosum and is caused by pox virus. • Molluscum contagiosum is most common in children who become infected through direct skin-to-skin contact or indirect skin contact with fomites. Open / Comment

2022-08-31 14:49:04 Open / Comment

2022-08-31 14:44:31 76) A 28-year-old lady has asymptomatic dome shaped small lesions on a forehead for last 2 months. She has a 2-year-old daughter with similar lesions. What is the causative agent? Open / Comment

2022-08-26 13:25:02 75) Explanation

Chancroid is a bacterial sexually transmitted disease (STD) caused by infection with Haemophilus ducreyi. It is characterized by painful necrotizing genital ulcers that may be accompanied by inguinal lymphadenopathy. It is a highly contagious but curable disease. Hducreyi, a small, gram-negative, facultative anaerobic bacillus that is highly infective. It is pathogenic only in humans, with no intermediary environmental or animal host. Hducreyi enters the skin through disrupted mucosa and causes a local inflammatory reaction Hducreyi is transmitted sexually by direct contact with purulent lesions and by autoinoculation to nonsexual sites, such as the eye and skin. The organism has an incubation period of 1 day to 2 weeks, with a median time of 5-7 days. Open / Comment

2022-08-25 13:23:42 Open / Comment

2022-08-16 18:01:01 73) Explanation

• The shown image is a case of male pattern baldness. • Male pattern hair loss is an androgen dependent process. • In majority of cases, this balding is patterned. The two major components being frontotemporal recession and loss of hair over the vertex. Open / Comment

2022-08-15 18:00:41 Open / Comment

2022-08-15 17:59:17 73) A middle age patient presented to you with the shown type of baldness. Diagnosis: Open / Comment

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2022-08-10 15:55:07 71) Explanation

• Tinea capitis is most commonly caused by Microsporum canis. • Second MCC of tenia capitis is trichophyton tonsurans. • It is never caused by epidermophyton as it does not involve hair. • It presents with localized non-cicatricial alopecia, itching, scaling with or without boggy swelling of scalp & easily pluckable hair. • Tenia capitis is diagnosed by potassium hydroxide (KOH) wet mounts of hair & scale. • Treatment: Griseofulvin is DOC Open / Comment