The Role of DAMPS in Burns and Hemorrhagic Shock Immune Response: Pathophysiology and Clinical Issues. Review.

Severe or major burns induce a pathophysiological, immune, and inflammatory response that can persist for a long time and affect morbidity and mortality. Severe burns are followed by a "hypermetabolic response", an inflammatory process that can be extensive and become uncontrolled, leading to a generalized catabolic state and delayed healing. Catabolism causes the upregulation of inflammatory cells and innate immune markers in various organs, which may lead to multiorgan failure and death. Burns activate immune cells and cytokine production regulated by damage-associated molecular patterns (DAMPs). Trauma has similar injury-related immune responses, whereby DAMPs are massively released in musculoskeletal injuries and elicit widespread systemic inflammation. Hemorrhagic shock is the main cause of death in trauma. It is hypovolemic, and the consequence of volume loss and the speed of blood loss manifest immediately after injury. In burns, the shock becomes evident within the first 24 h and is hypovolemic-distributive due to the severely compromised regulation of tissue perfusion and oxygen delivery caused by capillary leakage, whereby fluids shift from the intravascular to the interstitial space. In this review, we compare the pathophysiological responses to burns and trauma including their associated clinical patterns.

Dermatobia hominis: Small Migrants Hidden in Your Skin.

Myiasis is a parasitic infestation of vertebrate animal tissues due to maggots of two-winged flies (Diptera) that feed on living or necrotic tissue. Dermatobia hominis occurs widely in tropical parts of Latin America; it is the most common cause of furuncular myiasis in this region. The continuous increase in international travel has increased the possibility of observing this pathology outside endemic countries, especially in travelers returning from the tropics. If clinicians are aware of the possibility of the disease and its treatment options, this dermatosis can be easily managed. However, diagnostic delay is very common because the disease is often misdiagnosed as a bacterial skin infection. Here, we report 2 cases of furuncular myiasis caused by D. hominis in travelers returning to Italy from Latin America. Surgical and noninvasive treatment approaches are also described.

A case of persistent hiccup after laparoscopic cholecystectomy.

A 79-year-old man, with history of recent laparoscopic cholecystectomy, came to our attention for persistent hiccup, dysphonia, and dysphagia. Noninvasive imaging studies showed a nodular lesion in the right hepatic lobe with transdiaphragmatic infiltration and increased tracer uptake on positron emission tomography. Suspecting a malignant lesion and given the difficulty of performing a percutaneous transthoracic biopsy, the patient underwent surgery. Histological analysis of surgical specimen showed biliary gallstones surrounded by exudative inflammation, resulting from gallbladder rupture and gallstones spillage as a complication of the previous surgical intervention. This case highlights the importance of considering such rare complication after laparoscopic cholecystectomy.

Ovarian cancer initially presenting as intramammary metastases and mimicking a primary breast carcinoma: a case report and literature review.

BACKGROUND: Ovarian cancer usually spreads intra-abdominally. Supradiaphragmatic metastases are rare, and axillary lymph node metastases are exceptional. Here, we present the first case of ovarian carcinoma detected at screening mammogram as intramammary lymph node metastases. CASE REPORT: A 44-year-old obese woman underwent core biopsy of a suspicious mammographic finding histologically consistent with lymph node metastases from breast cancer. Serum tumor markers, including CA 125, were normal, and clinical staging was negative. The patient underwent quadrantectomy and axillary dissection that revealed four involved lymph nodes but no primary breast carcinoma. Accurate re-evaluation of the histological specimens suggested the possible ovarian origin of the tumor. An [(18)F]-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography revealed a 33-mm solid mass with intense metabolic FDG uptake in the right groin and a small simple ovarian cyst with normal FDG uptake. The ovarian cyst was removed laparotomically and was malignant on frozen section. Surgical staging revealed a well-differentiated serous ovarian carcinoma microscopically involving the omentum and massively infiltrating the groin node. After chemotherapy, the patient developed metastases in the contralateral axilla that was removed surgically. The patient is alive with no evidence of disease 20 months after surgical removal of the primary tumor. CONCLUSIONS: Surgeons should be aware that ovarian cancer may rarely metastasize to intramammary and axillary nodes, mimicking a primary breast carcinoma.