Diagnosis: Corn (clavus, hard)
A 25-year-old female dancer presents with a painful hyperkeratotic lesion on the lateral aspect of her fourth toe, persisting for three months. The lesion has progressively worsened, causing significant discomfort during dance rehearsals and daily activities.
A 25-year-old female dancer reports a painful hyperkeratotic lesion on the lateral aspect of her fourth toe that has been present for three months. The patient describes the lesion as increasingly painful, particularly during dance rehearsals, where she experiences discomfort with each step. On examination, the lesion appears well-circumscribed, with a thickened, yellowish, and hardened surface.Location: Lateral aspect of the fourth toe.Appearance: Well-circumscribed, thickened, and hyperkeratotic.Size: Approximately 1 cm in diameter.Symptoms: Pain on palpation and during weight-bearing activities.Surrounding skin: Intact without signs of inflammation or infection.
The lesion began approximately three months ago, coinciding with the start of her dance training for an upcoming performance. The patient reports that the lesion has progressively increased in size and pain, particularly with prolonged standing and dancing. She has attempted over-the-counter corn pads and topical salicylic acid, but these treatments have provided minimal relief. The patient has no significant past medical history and denies any family history of similar lesions. She is otherwise healthy and engages in regular physical activity.Onset: Began three months ago with increased dancing activity.Triggers: Prolonged standing and dancing.Prior treatments: Over-the-counter corn pads and topical salicylic acid.Past medical history: No significant medical history.Family history: No family history of similar conditions.Social history: Active dancer, no tobacco or alcohol use.
Acute / First-Line ManagementDebridement of the hyperkeratotic lesion to reduce pressure and pain.Topical salicylic acid (apply 40% solution once daily, occluded with a dressing) to facilitate keratolysis.Padding or orthotic devices to redistribute pressure away from the lesion.Workup and Diagnostic ConfirmationClinical diagnosis based on characteristic appearance and history.Consider biopsy if atypical features arise or if the lesion does not respond to conservative treatment.Long-Term ManagementRegular follow-up to monitor for recurrence and assess the need for further intervention.Education on proper footwear to minimize pressure on affected areas.Consider referral to a podiatrist for custom orthotics if recurrent lesions develop.
Callus: Generally presents as a thickened area of skin due to friction; typically less localized than a corn.Plantar wart: Caused by HPV, typically presents with pinpoint bleeding on compression; may have a rough surface.Skin tag: A soft, benign outgrowth that is usually pedunculated and not painful.Actinic keratosis: A precancerous lesion that appears scaly and rough, typically on sun-exposed areas; not usually localized to a pressure point.Neoplasm (e.g., squamous cell carcinoma): May present as a non-healing ulcer or thickened area; would require biopsy for confirmation.Fungal infection: May present similarly but often with additional symptoms like itching or erythema.Psoriasis: Typically presents as well-defined, erythematous plaques with silvery scales; not confined to pressure points.Dermatofibroma: A firm, raised lesion that may resemble a corn but is usually asymptomatic and has a characteristic dimple sign.
High-Yield PearlsDiagnosis: A thorough clinical history and examination are crucial for diagnosing hyperkeratotic lesions.Management: First-line treatment includes debridement and topical keratolytics like salicylic acid.Prevention: Proper footwear and pressure redistribution are key in preventing recurrence.Referral: Consider referral to a podiatrist for recurrent lesions or if conservative measures fail.Education: Educate patients about the importance of foot care, especially for those engaged in high-impact activities.Recognizing the characteristics of hyperkeratotic lesions is essential for effective management and patient comfort.
Tags: corn, clavus