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A young adult male presents with unilateral, itchy, erythematous and scaly lesions arranged in a distinctive linear and ...
09/05/2026

A young adult male presents with unilateral, itchy, erythematous and scaly lesions arranged in a distinctive linear and whorled pattern over the trunk.

The lesions appear to follow a specific developmental pattern of the skin rather than a typical dermatome.

🔍 What is your diagnosis?

Drop your answer below 👇
A, B, C, or D?

Don’t Google it—trust your clinical eye! 🩺

🔍 A 62-year-old man presents with a small, painful nodule on the upper helix of his ear that has been present for severa...
09/04/2026

🔍 A 62-year-old man presents with a small, painful nodule on the upper helix of his ear that has been present for several weeks. He reports that the lesion becomes particularly painful when sleeping on that side.

On examination, there is a solitary, firm, erythematous nodule with a small central crust.

What is the most likely diagnosis?

A. Basal Cell Carcinoma
B. Chondrodermatitis Nodularis Helicis
C. Squamous Cell Carcinoma
D. Sebaceous Cyst

💬 Comment your answer before checking the comments!

🩺 MedExplain — Learn. Diagnose. Remember.

🔍 Can you diagnose this skin lesion?A young adult presents with multiple tiny, firm, pearly-white bumps on the face.They...
09/04/2026

🔍 Can you diagnose this skin lesion?

A young adult presents with multiple tiny, firm, pearly-white bumps on the face.
They are small, smooth, non-inflammatory, and usually asymptomatic.

But here’s the catch 👀
Several common facial conditions can look surprisingly similar.

What’s your diagnosis?
👇 Drop A, B, C, or D in the comments.

⏳ Correct answer will be revealed later.

MedExplain | Learn • Diagnose • Explain

A young adult presents with multiple rough, dry, follicular papules over the extensor surface of the upper arms. The les...
09/03/2026

A young adult presents with multiple rough, dry, follicular papules over the extensor surface of the upper arms. The lesions are small, keratotic and non-inflammatory, giving the skin a characteristic rough texture. There is no significant pain or itching.

The patient also reports a poorly balanced diet with low intake of fruits and vegetables.

🔎 What is the most likely diagnosis?

A. Keratosis Pilaris
B. Phrynoderma
C. Folliculitis
D. Ichthyosis

💬 Comment your answer: A, B, C, or D!
👀 Think beyond the common diagnosis.

MedExplain

🦷 A simple dental finding can reveal the culprit drug…A patient develops yellow–brown discoloration of the teeth, especi...
09/03/2026

🦷 A simple dental finding can reveal the culprit drug…

A patient develops yellow–brown discoloration of the teeth, especially after exposure during tooth development.

💊 Which drug is responsible for this classic adverse effect?

A. Amoxicillin
B. Azithromycin
C. Tetracycline
D. Ceftriaxone

👇 Drop your answer in the comments — don’t Google it!
Let’s see who can identify the drug from the clinical clue. 🧠

MedExplain | Medical Knowledge Challenge

🩺 A 42-year-old man presents with several painless, slowly enlarging reddish-purple spots and plaques over both lower li...
09/03/2026

🩺 A 42-year-old man presents with several painless, slowly enlarging reddish-purple spots and plaques over both lower limbs for the past 6 months.

The lesions gradually increased in number and size. He reports no significant pain or itching. On examination, multiple violaceous macules, plaques, and nodules are noted over the lower legs.

🔍 What is the MOST likely diagnosis?

A. Bacillary angiomatosis
B. Kaposi sarcoma
C. Pyogenic granuloma
D. Angiosarcoma

💬 Drop your answer in the comments — no Googling!
⏳ Correct diagnosis will be revealed later.

MedExplain 🧠

Comment your answer below! 👇
09/03/2026

Comment your answer below! 👇

A 68-year-old man presents with several slowly growing, brown, raised lesions on his trunk and back.He says they have be...
09/02/2026

A 68-year-old man presents with several slowly growing, brown, raised lesions on his trunk and back.

He says they have been present for several years and are mostly asymptomatic. On examination, the lesions are well-defined, waxy, and appear as if they are “stuck onto” the skin.

No bleeding or ulceration is noted.

🔍 What is the most likely diagnosis?

A. Melanoma
B. Actinic Keratosis
C. Seborrheic Keratosis
D. Verruca Vulgaris

👇 Drop your answer in the comments!
Don’t Google it 😏

🧠 A 12-year-old boy was brought with a rapidly enlarging swelling of the jaw and upper neck for the past 3 weeks.The swe...
09/02/2026

🧠 A 12-year-old boy was brought with a rapidly enlarging swelling of the jaw and upper neck for the past 3 weeks.

The swelling was painless, but progressively increased in size. His family also noticed facial asymmetry and difficulty chewing.

On examination, there was a large, firm facial and cervical mass with significant jaw involvement.

Laboratory evaluation showed elevated LDH, and imaging revealed an aggressive mass involving the jaw.

🔬 A biopsy was performed, showing a highly aggressive B-cell malignancy with a characteristic “starry-sky” appearance.

What is the most likely diagnosis?

A. Hodgkin Lymphoma
B. Burkitt Lymphoma
C. Diffuse Large B-Cell Lymphoma
D. Nasopharyngeal Carcinoma

👇 Your diagnosis? Comment your answer below.

— MedExplain

A 72-year-old man presents with a rapidly enlarging, painless, firm reddish-purple nodule on his forearm.He first notice...
09/02/2026

A 72-year-old man presents with a rapidly enlarging, painless, firm reddish-purple nodule on his forearm.

He first noticed a tiny bump about 6 weeks ago, but it has increased significantly in size during this short period. The lesion is smooth, shiny, and located on chronically sun-exposed skin.

He has no fever or systemic symptoms.

🔍 What is the MOST likely diagnosis?

A. Basal Cell Carcinoma
B. Dermatofibrosarcoma Protuberans
C. Merkel Cell Carcinoma
D. Squamous Cell Carcinoma

💬 Drop your answer in the comments — no Googling!

📌 Think fast-growing + red/violaceous + elderly + sun-exposed skin.

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