Anaplastic large-cell lymphoma (ALCL) is a CD30-positive T-cell/null-cell lymphoma that is clinically classified into either primary cutaneous ALCL or systemic ALCL (S-ALCL) sub-types. Because 90% of childhood S-ALCL cases are anaplastic lymphoma kinase (ALK)-positive, there is a lack of data on ALK-negative S-ALCL cases among pediatric patients. Herein, we report a rare case of ALK-negative S-...

Human dirofilariasis is a zoonotic infectious disease caused by the filarial nematodes of dogs Dirofilaria repens and Dirofilaria immitis. Depending on the species involved, human infections usually manifest as one cutaneous or visceral larva migrans that forms a painless nodule in the later course of disease. Dirofilariae are endemic in the Mediterranean, particularly in Italy. They are consid...

A 72-year-old male patient with a history of cutaneous mycosis fungoides, in clinical remission after treatment, underwent fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) for restaging due to the recent appearance of lung nodules on CT. PET/CT images showed multiple areas of increased radiopharmaceutical uptake corresponding to several bilateral ...

Scrofuloderma is a common type of cutaneous tuberculosis characterized by a bluish-red nodule overlying an infected lymph gland, bone or joint that breaks down to form an undermined ulcer with a granulating tissue at the base. Progression of the disease leads to irregular adherent masses, densely fibrous at some places while fluctuant and discharging at others. It heals with a characteristic pu...

Tufted angioma is a rare vascular tumor whose name derives from its histopathological appearance, characterized by tufts of capillaries within the dermis. Its etiology and pathogenesis are uncertain. Tufted angioma typically occurs during infancy or early childhood and displays various clinical patterns. It may present as a subtle stain-like area that later thickens as a large plaque, infiltrat...

Marjolin's ulcer is an aggressive cutaneous malignancy common in previously traumatized or chronically inflamed skin. It has high regional metastasis and fatality rates. Our patient presented with subcutaneous nodules and ulcerations on the right limb. He had a history of osteomyelitis of the fifth toe. Histopathological examination of the nodule and ulceration demonstrated squamous cell carcin...

BACKGROUND The penis is an unusual site of presentation for Kaposi sarcoma, especially in immunocompetent patients. CASE PRESENTATION A 52-year-old human immunodeficiency virus (HIV)-seronegative man presented with a reddish, 8 mm in diameter nodule on the glans penis near the coronal sulcus. Histopathology after excision of the lesion was consistent with Kaposi sarcoma. No other cutaneous or...

Background and aim: Adult T cell leukemia/lymphoma (ATLL) is an aggresive malignancy which may occur in human T lymphotropic virus1(HTLV1) infected persons. HTLV1 is endemic in Khorasan with prevalence of 2.3% in general population. Since specific cutaneous manifestations of lymphoma may occur in a significant number of patients, we studied ATLL patients in Mashhad.Mate...

Eccrine syringofibroadenoma (ESFA) is a rare tumor originated from eccrine ductal portion [1,2]. Clinically, ESFA presents a solitary papule, nodule or plaque to multiple lesions. Cases with multiple papular or macular lesions have been often associated with hereditary ectodermal dysplasia [3]. Recent findings have classified ESFA into several groups including, solitary ESFA, multiple ESFA with...

Cutaneous apocrine gland carcinoma, a subtype of sweat gland carcinoma, is a very rare malignancy, and only few cases have been reported in the literature. Many of these carcinomas are indolent and slowly developing, but some are rapidly progressive. The treatment of choice is wide local excision with clear margins, with or without lymph node dissection. We report a case of a 67-year-old man wh...