Dermatology

04 Oct 2022 10:27

@U_World

Dermatology

02 Oct 2022 12:30

81) A 19-year-old man develops new lesions at the sites of skin trauma. The lesions appear as
sharply marginated erythematous papules
with silvery-white scales

Dermatology

28 Sep 2022 12:30

80) A 32-year-old man with human immunodeficiency virus (HIV) infection develops skin tumors and patches on the legs with some on the face. They are palpable, firm, and appear
violaceous with some nodules appearing
purple brownish.

Dermatology

24 Sep 2022 16:46

79) A 19-year-old woman with asthma has a chronic rash with distribution on her hands, neck, and elbow creases. It is very itchy, and the skin appears thickened with increased skin markings. There are some areas of fissures in the skin at the elbow creases and hands. Which of the following is the most appropriate advice? (See Fig. )

Dermatology

18 Sep 2022 14:54

78) A 74-year-old man develops a new single 1.5 cm lesion on his face. It is firm and nodular with a dome shape and central keratotic plug. Excisional biopsy confirms keratoacanthoma. Which of the following best characterizes this lesion?

Dermatology

14 Sep 2022 15:00

77) A 25-year-old female presents with history of fever and oral ulcers and has developed erythematous lesions on her face. Comment on the diagnosis.

Dermatology

31 Aug 2022 13:44

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?

Dermatology

16 Aug 2022 17:01

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.

Dermatology

10 Aug 2022 14:55

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

Dermatology

28 Jul 2022 11:11

The Characteristic Features of Lichen Planus are: • Hyperkeratosis with absence of parakeratosis(which is a mode of keratinization characterized by the retention of nuclei in the stratum corneum) • Hypergranulosis (which is thickening of the granular layer) with Basal cell degeneration • Presence of irregular acanthosis with saw-tooth appearance of the rete-ridges. • Presence of upper dermal band-like lympho-histiocytic infiltrate that impinges on the epidermis, leading to obliteration of the dermo-epidermal interface • Presence of Civatte bodies (also known as colloid bodies and hyaline bodies), representing degenerated, apoptotic keratinocytes.

Dermatology

14 Jul 2022 10:51

Types of Sweating •Gustatory sweating: Sweating on scalp, forehead and nose in response to hot and spicy meals. •Mental sweating: Occurs in response to emotional stimuli like. For example, mental stress, emotional stress. Sweating usually noticed on palms, soles and axilla. •Thermogenic sweating: Sweating in response to preoptic stimulation of hypothalamus in order to maintain the body temperature.

Dermatology

06 Jul 2022 07:23

63) A young girl having low intelligence presented as shown below. There is history of epilepsy. Diagnosis:

Dermatology

01 Jul 2022 07:50

62) A 20-year-old man with history of melena and abdominal pain has pigmentation of lips. Probable diagnosis is?

Dermatology

24 Jun 2022 10:40

61) A 13-year-old boy presents with patchy depigmented skin on the right flank and upper thigh in segmental distribution. The depigmentation started 1 year back but has been static for last 4 months. Mother reports use of topical steroids which was ineffective. Diagnosis is?

Dermatology

16 Jun 2022 10:35

60) 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?
@dermatology_vid

Dermatology

03 Oct 2022 12:30

81) Explanation



Koebner phenomenon is typically seen in
psoriasis. The kind of injury eliciting the phe nomenon is usually mechanical, but ultraviolet light or allergic damage to the skin may be provocative. Koebner phenomenon can also occur in lichen planus, lichen nitidus, keratosis follicularis, and pemphigoid. The Koebner phenomenon has been used to study early skin changes in these diseases.

Dermatology

29 Sep 2022 12:30

80) Explanation



Kaposi sarcoma often manifests as multiple
blue dermal plaques. Lesions have two prominent features: accumulation of spindle cells and presence of vascular elements. Classical Kaposi sarcoma is an indolent disease of later life and is much more common in men than women.
Kaposi sarcoma in association with HIV infection is a much more aggressive disorder. In all types of Kaposi the deoxyribonucleic acid (DNA) of human herpes virus 8 has been identified

Dermatology

25 Sep 2022 16:29

79) Explanation

A change of environment is among the best treatments for atopic dermatitis. The patient should be kept in as dust-free an environment as possible and should not wear rough garments. Maintenance of adequate humidity is also important.

Dermatology

19 Sep 2022 14:29

78) Explanation


This tumor as a rule occurs on exposed, hairy skin. It grows rapidly but involutes slowly, occasionally up to 1 year. It is more common in white-skinned males. The lesion starts as a small, rounded, flesh-colored or red dish papule. It grows rapidly and may reach 10–20 mm in a few weeks. There are telangiectasias just below the surface and the center contains a horny plug or is covered by a crust concealing a keratin-filled crater. Histology can be difficult to differentiate from squamous cell cancer.

Dermatology

15 Sep 2022 14:30

77) Explanation
• The image shows an erythematous rash sparing the nasolabial folds which coupled with clinical history points to diagnosis of SLE.
• Choice B leads to heliotrope rash involving the upper eye lid and proximal muscle weakness.
• Choice C presents as grey-brown patches, usually on the face on the cheeks, bridge of the nose, forehead, chin, and above the upper lip. It can also appear on sunexposed parts of body, such as the forearms and neck.
• Choice D presents as redness, and can slowly spread beyond the nose and cheeks to the forehead and chin. There will be flushing, visible blood vessels and acne like breakouts

Dermatology

01 Sep 2022 13:50

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.

Dermatology

26 Aug 2022 12:25

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.

Dermatology

15 Aug 2022 16:59

73) A middle age patient presented to you with the shown type of baldness. Diagnosis:

Dermatology

31 Jul 2022 12:43

Lupus Vulgaris: Can be endogenous & exogenous. Presents with non itchy annular plaque or long standing duration with atrophy. Apple jelly nodules are present in 10% of cases Scrofuloderma: Contagious spread of TB may be from underlying lymphnodes, fascia or bone. Most common site is cervical lymph nodes. Ulcer with bluish edges with undermined edges. After healing puckered scarring marks will develop. Lichen Scrufulosorum: Seen in children. Multiple grouped white papules all over the body, most commonly trunk. It is a source of TB lymphadenitis. Erythema nodosum: It is a panniculitis that presents as a painful red nodule on lower limbs. It is due to C1 deposition in vessels of subcutis. Causes: Idiopathic, Bacterial, fungal , viral infection, drugs (sulphonamides, contraceptives), IBD, Sarcoidosis, Behcet’s disease.

Dermatology

21 Jul 2022 09:01

• Apthous ulcers are also called as canker sores/apthous stomatitis and present as round ulcer with yellowish base and surrounded by a red halo. The usual sites are oral mucosa on the insides of lips , cheeks or below the tongue. Most of apthous ulcers are <5mm in size and heal within 1-2 weeks. Painless recurrent apthous ulcers are seen in SLE Painful recurrent apthous ulcers in oral cavity and genitilia is seen are in Behcet disease

Dermatology

07 Jul 2022 07:26

• Triad of tuberous sclerosis is remembered with simple mnemonic EpiLoA: Epilepsy, Low IQ, and adenoma sebaceum. • The patient in image presented with adenoma sebaceum and other triad of tuberous sclerosis. • The earliest cutaneous sign tuberous sclerosis, is macular hypomelanosis, referred to as an ash leaf spot.• Examination of the patient for additional cutaneous signs such as multiple angiofibromas of the face (adenoma sebaceum), ungual and gingival fibromas, fibrous plaques of the forehead, and connective tissue nevi (shagreen patches) is recommended. • Internal manifestations include seizures, mental retardation, central nervous system (CNS) and retinal hamartomas, pulmonary lymphangioleiomyomatosis (women), renal angiomyolipomas, and cardiac rhabdomyomas.

Dermatology

02 Jul 2022 07:52

The image shows presence of lentiginosis around lips and fingers. The history of melena points to concomitant GIT lesion. This is seen in Peutz Jehgers syndrome characterized by hamartomatous polyps mostly located in jejunum.

Dermatology

25 Jun 2022 10:42

• Vitiligo is an acquired autoimmune condition targeting melanocytes and presents with localized or widespread white depigmented patches. Thyroid dysfunction is the most common association. • Piebaldism is an autosomal dominant condition characterized by white forelock and circumscribed depigmented patches affecting the body. It is caused by a defect in proliferation and migration of melanocytes during embryogenesis. Unlike vitiligo, it is congenital and nonprogressive. In the question the depigmentation started at age the of 12 years and the patient presented at 13 years.
• Nevoid hypomelanosis is characterized by hypopigmented patches or streaks which follow the lines of Blaschko. They are present at birth and may develop in the first 2 years of life.

Dermatology

17 Jun 2022 10:38

• 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.

Dermatology

11 Jun 2022 06:54

•The image shows presence of erythematous brown macule on left supraorbital margin. Since CXR is normal, sarcoidosis is less likely. •Diascopy should nail the diagnosis in favour of lupus vulgaris with apple jelly appearance. •Lupus vulgaris is seen in patients with good immunity.