A diagnostic challenge: inflamed and pigmented seborrheic keratosis. Clinical, dermoscopic, and histopathological correlation.

Pigmented and irritated types of seborrheic keratosis (SK) can be confused with melanoma, basal cell carcinoma, or pigmented actinic keratosis. Dermoscopic examination may give many clues for the diagnosis of SK, but in equivocal cases the accurate diagnosis can only be made by microscopic features. Herein, we report a striking, isolated pigmented and inflamed SK, located on the waist in an elderly man.

An unusual lesion on the nose: microvenular hemangioma.

Microvenular hemangioma (MVH) is an acquired, benign type of hemangioma that usually manifests itself as a solitary, slowly growing, red to violaceous, asymptomatic papule, plaque or nodule. It is typically located on the trunk or extremities of young adults. It can be difficult to differentiate MVH from other types of hemangioma and Kaposi sarcoma.

Simultaneous Immunoglobulin G4-associated Autoimmune Hepatitis and Autoimmune Pancreatitis.

Yilmaz B, Kiziltas S, Yildiz S, Gümüs B, Çevik H. Simultaneous Immunoglobulin G4-associated Autoimmune Hepatitis and Autoimmune Pancreatitis. Euroasian J Hepato-Gastroenterol 2017;7(1):95-96.

A rare complication of follicular hair unit extraction: Kaposi's varicelliform eruption.

Follicular hair unit extraction (FUE) is becoming a popular type of hair transplantation recently. Kaposi's varicelliform eruption (KVE) is an uncommon skin emergency due to cutaneous dissemination of several types of viruses, most notably herpes virus, over the lesions of preexisting skin disorders. A 34-year-old man visited our dermatology outpatient clinic with a blistering, itchy and tender eruption on his head and body.

Acral melanoma with satellitosis, disguised as a longstanding diabetic ulcer: a great mimicry.

Acral lentiginous melanoma affects the palms, soles, and nail apparatus. Around 3-15% of all cutaneous melanomas are located on the foot and have a poorer prognosis than melanoma elsewhere. Possible reasons for this prognostic difference may be omitting this area during routine skin check by both the patient and the physicians, in addition to misdiagnosis of melanoma as other benign skin lesions.

Is it a sarcoidal foreign-body granuloma or a cutaneous sarcoidosis on a permanent eyebrow make-up?

Permanent make-up is a kind of cosmetic tattoo in which the colorants (pigments) are deposited in dermis after piercing the skin by tiny solid needles. It may cause some adverse effects such as local inflammation, infection, and allergic reactions on the skin and even systemic adverse effects such as sarcoidal reactions. Here the case of a 34-year-old woman who has some yellowish hard shiny papules on her eyebrows after having a permanent make-up is described.

Blastic plasmacytoid dendritic cell neoplasm: skin and bone marrow infiltration of three cases and the review of the literature.

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a distinct and rare neoplastic entity and was classified as a subgroup of acute myeloblastic leukemia by the WHO in 2008. The median survival of patients was 15.2 months in a large case series.

Relationship of P-selectin glycoprotein ligand-1 to prognosis in patients with multiple myeloma.

Background: Changes occur in adhesion molecules in the disease course of multiple myeloma. P-selectin glycoprotein ligand-1 (PSGL-1, CD162) works as the ligand of selectin-neutrophil adhesion molecules. The aim of the present study was to investigate the relationship between PSGL-1 expression in the bone marrow and the known prognostic factors for multiple myeloma disease, disease stage, and survival.

A rare presentation of langerhans cell histiocytosis tonsil infiltration: review of the literature: atypical presentation of langerhans cell histiocytosis.

Langerhans cell histiocytosis (LCH) is a rare disease that can infiltrate various organs. LCH presents with solitary organ involvement or as a multi-system disease. We present a patient who has tonsillary infiltration with LCH.