Search Results for: cysts

Metastatic papillary thyroid carcinoma to the nose mimicking basal cell carcinoma: report and review of cutaneous metastases of papillary thyroid cancer

Metastatic papillary thyroid carcinoma to the nose mimicking basal cell carcinoma: report and review of cutaneous metastases of papillary thyroid cancer

…laques, papules or nodules. They can mimic other conditions such as alopecia, infections (erysipelas and paronychia), benign cysts (epidermoid or pilar), pyogenic granuloma and cutaneous malignant neoplasms (basal cell carcinoma and keratoacanthoma)…

Differential Diagnosis in Dermatopathology

"Pseudolymphoma," B-cell type vs. Malignant lymphoma, B-cell type

…aceous units, especially infundibula, that may manifest itself solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve without residua or with…

Segmental neurofibromatosis presenting with congenital excessive skin folds

Segmental neurofibromatosis presenting with congenital excessive skin folds

…irth, according to the patient’s parents) was also palpated. Ultrasonographic examination of the lower back was negative for cysts, bony involvement, or muscular abnormalities. Ultrasound of the skull confirmed the presence of a benign bony…

Differential Diagnosis in Dermatopathology

Discussions

…mors that have no distinguishing features. Not uncommonly, clinicians misinterpret both apocrine and eccrine mixed tumors as cysts and incise the lesions rather than attempt to excise them, a maneuver that often results in an artifactual cleft being…

Differential Diagnosis in Dermatopathology

Sebaceous hyperplasia vs. Nevus sebaceus of Jadassohn

…aceous units, especially infundibula, that may manifest itself solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve without residua or with…

An atypical pigmented lesion

An atypical pigmented lesion

…th dermal dislocation, composed of a well-defined nodule in the middle surrounded by small nests in which multiple keratinic cysts can be identified (red arrows). Some of them are locus of dystrophic calcification (green arrows). The neoplasia is…

Differential Diagnosis in Dermatopathology

Epidermolytic hyperkeratosis vs. Plane wart

…aceous units, especially infundibula, that may manifest itself solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve without residua or with…

Dermoscopic appearance of an amelanotic mucosal melanoma

Dermoscopic appearance of an amelanotic mucosal melanoma

…ble differential diagnoses of our case include herpes infection, condylomata acuminata, condyloma lata of syphilis, inflamed cysts or glands, and squamous cell carcinoma. This observation encourages the use of the dermoscope at the mucosa even in…

Non-choroidal yellow melanoma showing positive staining with Sudan Black consistent with the presence of lipofuscin: a case report

Non-choroidal yellow melanoma showing positive staining with Sudan Black consistent with the presence of lipofuscin: a case report

…ital type nevus [10]. In a study of 400 BCCs Bellucci et al. found that 10% displayed yellow structures either as milia-like cysts (7.75%) or lobular structures (4.2%) [11], also presumably due to keratin. There was no accumulation of keratin to…