Search Results for: neoplasms

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Differential Diagnosis in Dermatopathology

Discussions

In general, neoplasms metastatic to the skin present little difficulty in differential diagnosis from neoplasms primary in the skin. Carcinoma of the breast is an exception. If there are but a few neoplastic cells and numerous inflammatory cells…

Regressing basal-cell carcinioma masquerading as benign lichenoid keratosis

Regressing basal-cell carcinioma masquerading as benign lichenoid keratosis

…ing, it should be reserved to those lesions. If used in broader, non-specific fashion, i.e., for various types of regressing neoplasms affected by a lichenoid tissue reaction, it necessarily includes not only viral warts but also some solar…

Differential Diagnosis in Dermatopathology

Discussions

…sm. Although the finding of protrusion of cytoplasm into nuclei is not specific, it is seen mostly in melanocytic and neural neoplasms. The concept of neural crest derivation of granular-cell tumor is supported further by studies utilizing…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…lla present often 11. No hamartomas or neoplasms with adnexal differentiation concurrent in the section of tissue 11. Benign neoplasms with adnexal differentiation (e.g., trichoblastoma) and much less commonly malignant neoplasms (e.g., sebaceous…

Confusion—specimen mix-up in dermatopathology and measures to prevent and detect it

Confusion—specimen mix-up in dermatopathology and measures to prevent and detect it

…rgent diagnoses on the same neoplasm in an incisional biopsy and the subsequent re-excision specimen. However, two different neoplasms in the immediate vicinity of one another are not rare, especially in skin damaged severely by sunlight. Moreover,…

Isolated pink papule on the chest

Isolated pink papule on the chest

…ine poroma. References 1. Ito K, Ansai SI, Fukumoto T, Anan T, Kimura T. Clinicopathological analysis of 384 cases of poroid neoplasms including 98 cases of apocrine type cases. J Dermatol. May 14 2016. [Epub ahead of print] PubMed CrossRef 2….

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

…hat since “…the natural history of thyroid cancer is one of slow progression skin metastases may be confused with other skin neoplasms such as basal cell carcinoma…” [5] Indeed, their patient—a 70-year-old man—presented with a enlarged thyroid gland…

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