Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0018099 (gout)
 5,192 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Verrucous carcinoma is a rare variant of well-differentiated squamous cell carcinoma. It usually occurs in the oral cavity, genital area, and sole. Verrucous carcinoma of the sole, also called epithelioma cuniculatum, often presents a diagnostic challenge both clinically and histopathologically. The authors report such a case that mimics infected epidermal cyst and gout clinically.
 ...
PMID:A case of verrucous carcinoma (epithelioma cuniculatum) of the heel mimicking infected epidermal cyst and gout. 1982 31

Although the classic location of gouty tophi is the great toe (podagra), gouty tophi of the ear also is common and is worth including in the differential diagnosis in patients presenting with ear lesions. Other entities presenting as papules or nodules on the ear include chondrodermatitis nodularis helicis (CNH), actinic keratosis, basal cell carcinoma, squamous cell carcinoma, verruca vulgaris, amyloids, rheumatoid nodules, and elastotic nodules. If tophaceous gout is suspected, alcohol fixation of the biopsy specimen is preferable, as it enables visualization of characteristic needle-shaped urate crystals.
...
PMID:Gouty tophi on the ear: a review. 2419 91

The ear is a characteristic location for deposition of uric acid in patients with gout. Pseudocarcinomatous hyperplasia has not been described in this location. We report three patients with tophaceous gout on the ear whose biopsies exhibited epidermal hyperplasia mimicking squamous cell carcinoma, in order to call attention to this potential diagnostic pitfall.
...
PMID:Pseudocarcinomatous hyperplasia involving the ear from gout: a diagnostic pitfall. 2420 1

Gout is the most common cause of inflammatory arthritis in men over 40 [1]. The prevalence of gout in the US is approximately 3.9%. Tophus is a characteristic sign of gout and results when monosodium urate deposits at the joint, skin, or cartilage. Tophi develop in 12-35% of patients who are diagnosed with gout [2]. We report a case of a 70-year-old man who was diagnosed with squamous cell carcinoma of the helix via shave biopsy. During Mohs micrographic surgery, a vigorous foreign-body reaction was noted. Review of the initial biopsy slides identified crystals with pseudoepitheliomatous hyperplasia (PEH) rendering a diagnosis of gout. This case emphasizes the importance of recognizing causes of PEH and the predilection for tophi to form on the ear.
 ...
PMID:Perforating gout of the ear. 2832 94