OBJECTIVE We previously reported that near-infrared irradiation simulating solar near-infrared with pre- and parallel-irradiational cooling can penetrate the skin and non-thermally affects dermis, superficial muscles, and so forth. To clarify the possible effect of NIR irradiation on other subcutaneous tissues, we evaluated how near-infrared non-thermally affects subcutaneous adipocytes and bon...

Verrucous hemangiomas (VH) are uncommon, congenital vascular malformations of the cutaneous and subcutaneous tissues that spare the deeper subfacial structures. VH usually presents at birth and slowly grows with age. It usually presents as hyperkeratotic, scattered, bluish-red plaques or nodules of various sizes. Although the lesions mostly have a linear pattern, serpiginous and reticulat...

The deposition of a subcutaneous cement tract is a potential complication of percutaneous vertebroplasty. These tracts can be a source of pain and tenderness for the patient. We describe a case of symptomatic cement deposition within a needle tract in the subcutaneous tissues that required surgical removal, and we describe a technique to prevent this complication in a second patient, by using n...

Lupus erythematosus profundus, a form of chronic cutaneous lupus erythematosus, is a rare inflammatory disease involving in the lower dermis and subcutaneous tissues. It primarily affects the head, proximal upper arms, trunk, thighs, and presents as firm nodules, 1 to 3 cm in diameter. The overlying skin often becomes attached to the subcutaneous nodules and is drawn inward to produce deep, sau...

Lipoma is the most common benign neoplasm in the human body which develops from the adipose tissue. The tumors arise in subcutaneous tissues rather than deeper tissues where rare may cause compressive if some vein. The Authors report the case of femoral venous obstrucrion syndrome due to a giant femoral lipoma.

Pneumomediastinum, the presence of free air within the mediastinal cavity, is sometimes accompanied by subcutaneous emphysema and pneumorrhachis (air within the spinal canal). We report the case of a 28-year-old man with previously undiagnosed HIV who was diagnosed with extensive pneumomediastinum, pneumorrhachis, and subcutaneous emphysema secondary to Pneumocystis jiroveci pneumonia after pre...

Subcutaneous dirofilariasis is a helminthic zoonosis that is nowadays reported with relative frequency in dogs in several parts of the world [2, 16, 19]. Its most important agent has clearly been identified in Dirofilaria (Nochtiella) repens, but other species (Dirofilaria immitis, Dipetalonema reconditum) can also be found in the subcutaneous tissues of dogs, according to the different geograp...

Neuroendocrine carcinomas have become increasingly recognized as more reports are emerging to describe these rare tumors. Primary sites include the lung, liver, throat, and other organs. Laryngeal neuroendocrine carcinomas are relatively rare, and the subtypes as well as the prognoses are quite different in most cases. Metastases to the liver, lungs and other parts are common. However, metastas...

Cytology of cutaneous and subcutaneous masses represents an opportunity to screen potential surgical cases and determine an etiologic agent or rule out potential neoplasia. This session will focus on common non-neoplastic and neoplastic tumors that present to practitioners. Helpful hints are given how to best diagnose the conditions. Cytodiagnostic groups for cutaneous and subcutaneous tissues ...