the nodular thyroid diseas is one of the most common disturbances o the thyroid gland wheras malignant tumors are among the most unusual entities of it. not only differentiation of these two spectra but also the problems to achieve early diagnosis and treatment, have been a matter of concern, research, and controversy. two hundred patients were assessed at the cancer institute of imam khomeini ...

Schwannomas are uncommonly recognized in horses. This study describes cutaneous schwannomas in 22 horses aged 8 to 25 years: 12 male, 7 female, and 3 of unknown sex. The horses had solitary cutaneous masses: 9 on the head, 3 on the neck, and the others on the shoulder, hip, thorax, abdomen, rump, extremities, or tail. The location of 1 tumor was unknown. The dermal tumors were well demarcated a...

Cutaneous metastases from hepatocellular carcinoma are very uncommon, and, according to one series, account for just 0.8% of all cutaneous metastases. Iatrogenic factors appear to be the most common cause and include needle tract seeding during percutaneous interventional procedures and surface seeding of tumor cells during surgery. We present the case of a 35-year-old man with a history of chr...

Sporotrichosis is a chronic granulomatous mycotic infection caused by Sporothrix schenckii, a common saprophyte of soil, decaying wood, hay, and sphagnum moss, that is endemic in tropical/subtropical areas. The recent phylogenetic studies have delineated the geographic distribution of multiple distinct Sporothrix species causing sporotrichosis. It characteristically involves the skin and subcut...

introduction cutaneous metaplastic synovial cyst (cmsc) is a rare cutaneous lesion characterized by a tender subcutaneous nodule, which usually occurs at the site of previous surgical or local trauma. histologically, the lesion includes a cystic structure with villous-like projections and a lining mimicking hyperplastic synovium. case presentation we reported the first case of cmsc which develo...

BACKGROUND Cutaneous dermatoses and malignancies have occurred at the sites of vaccines. PURPOSE To describe a man who developed a lichenoid dermatitis at the pneumococcal vaccine injection site and to review cutaneous dermatoses and malignancies occurring at vaccination sites. METHODS PubMed was used to search the following terms, separately and in combination: adverse, condition, cutaneou...

Cutaneous metastasis of underlying primary malignancies can present to dermatologist with chief complaints of cutaneous lesions. The underlying malignancy is generally diagnosed much later after a complete assessment of the concerned case. Medullary carcinoma thyroid (MCT) is a relatively uncommon primary neoplasia of the thyroid. Very few cases presenting as cutaneous metastases of MCT have be...

BACKGROUND Calcifying epithelioma of Malherbe, or Pilomatricoma, is considered an uncommon cutaneous neoplasia, normally occurring in children as a solitary, firm, asymptomatic, hard, subcutaneous, slowly growing nodule on the face, neck, or proximal upper extremity. In literature, two Pilomatricoma ultrasound patterns are described: the totally calcified nodule and the hypoechoic nodule with i...