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Ulnar-Sided Digital Nerve Tumor of the Thumb in the Professional Baseball Player Who Uses Grip-Adjusting Batting Equipment: A Report of 2 Cases
Neuropathy of the ulnar digital nerve of the thumb is a relatively rare clinical entity. We report 2 cases of ulnar-sided digital nerve tumors of the thumb in 2 professional baseball players who routinely used grip-adjusting batting equipment. Symptomatic relief was achieved with nonsurgical treatment that allowed both players to continue playing during critical times during their season. We postulate that there may be an association with the grip-adjusting batting equipment and the development of digital neuropathy.Extensive Tumoral Calcinosis of the Hand
Tumoral calcinosis is a rare and benign subtype of calcinosis cutis, a group of disorders involving soft tissue calcium deposition. Only 250 cases have been described since 1898; hand involvement is exceedingly rare. We report a case of extensive calcinosis within the flexor sheath of the little finger. Presentation included a painful mass over the volar aspect of the little finger, restricted digit motion, and skin compromise at the site of the mass. Surgical debulking was performed resulting in restoration of finger function.Parosteal Lipoma of the Proximal Phalanx of Hand
Parosteal lipomas are rare benign tumors accounting for less than 0.1% of all primary bone tumors. Only 3 cases of parosteal lipoma have been previously described affecting the distal and middle phalanges. We describe a case of parosteal lipoma in a 45-year-old man involving the proximal phalanx of the right middle finger. The tumor was marginally excised with the osseous attachment. There was no clinical or radiological recurrence at a follow-up of 2 years, with full range of movement at the proximal interphalangeal joint.Spontaneous Bone Regeneration of Distal Half Ulnar Segment After Open Fracture of Forearm in a Pediatric Case
Loss of the radius with open fractures of the forearm is rarely reported in pediatric cases and to the authors’ knowledge, cases of segmental loss of the distal half of the ulna have not been previously reported. A 6-year-old girl was admitted with a Gustilo-Anderson type IIIB open forearm fracture and loss of the distal half of the ulna after a motor vehicle accident. Serial debridement was performed and a Kirschner wire was inserted into the distal half of the ulna. Unexpectedly, the ulna regenerated and the defect healed 4 weeks later.Locally Advanced Pleomorphic Dermal Sarcoma of the Forearm
Pleomorphic dermal sarcoma (PDS) is a rare mesenchymal tissue tumor that shares pathological features with atypical fibroxanthoma, but also exhibits tumor necrosis, invasion beyond the superficial subcutis, and vascular or perineural infiltration. In addition, PDS also has relatively high rates of local recurrence and metastasis and is usually encountered in elderly men, especially in the head and neck area. In this article, we report a rare case of PDS that infiltrated the fascial tissues in the forearm of a female patient.Persistent Trigger Finger Due to Tendon Subluxation
We report the case of an adult patient with persistence of triggering after A1 pulley division in the ring finger, which was caused by flexor digitorum superficialis tendon subluxation. This resolved after longitudinal flexor digitorum superficialis tendon separation.Revascularization of a Circumferential Hand and Forearm Degloving Injury Using an Arteriovenous Shunt
Major upper-extremity degloving injuries with distal dysvascularity are rare and challenging surgical problems. When these degloving injuries occur over nonexpendable regions, such as the glabrous skin of the palm and digits, revascularization or replantation may be the treatment of choice. Because the degloved skin flap is often separated in the suprafascial plane, direct arterial repair may be impossible. We present a rare case of circumferential degloving of the hand and forearm with distal dysvascularity, treated successfully with revascularization with arterial anastomosis, venous anastomosis, and arteriovenous shunt creation.Volar Tilt of the Lunate After Open Reduction Internal Fixation of a Distal Radius Fracture
The pathophysiology of carpal adaptations after fracture of the distal radius is incompletely understood. We report 5 patients who had normal carpal alignment on injury radiographs that developed marked volar angulation of the lunate during recovery from volar plate fixation of a fracture of the distal radius. There were no signs of alteration of the carpal ligaments. Two patients had similar volar tilt on the contralateral side. The cause and optimal treatment of carpal malalignment after restoration distal radial alignment are unclear.Hedgehog-Transmitted Trichophyton erinaceid Causing Painful Bullous Tinea Manuum
Trichophyton is a species of fungus that commonly infects hedgehogs. As the popularity of keeping hedgehogs as pets increases, there have been reports of Trichophyton species infection in humans. Diagnosis and appropriate treatment of Trichophyton infection can be delayed owing to physicians’ low index of suspicion and unfamiliarity with the physical manifestations. We describe a case of a 27-year-old healthy man who developed tinea manuum after handling a pet hedgehog. Presenting symptoms included a worsening bullous eruption and severe pain.A Variant of Madelung Deformity: Management of the Distal Ulna Within the Carpal Canal
Madelung deformity is a rare disease that affects the normal growth of the distal radius and occurs in 1.7% of all pediatric congenital hand deformities. It is characterized by progressive deformity and shortening of the radius at the distal radial physis owing to anomalous tethering of the ulnar-volar growth plate. The distal ulna overgrows the radius and usually displaces dorsally. As growth continues, the carpals assume a wedge shape. Deformity, pain, and functional limitations are the usual presenting problems.Ultrasound-Guided Percutaneous Peripheral Nerve Stimulation for the Treatment of Chronic Intractable Pain Originating From a Lipofibromatous Hamartoma of the Median Nerve
This case report presents an application of peripheral nerve stimulation to the median nerve to treat a patient with intractable pain due to a lipofibromatous hamartoma of the left upper extremity. Ultra high-frequency ultrasound was used to determine the boundaries of the hamartoma. The patient then underwent an ultrasound-guided implantation of 2 stimulator electrodes distal to the elbow along the median nerve with stimulation coverage achieved at 1.2 and 1.4 mA, respectively. After an uneventful procedure, the pain score immediately decreased from 9 out of 10 to less than 6 on a numeric rating scale.Giant Cell Tumor of the Ring Finger Distal Phalanx
Giant cell tumor (GCT) is a benign but locally aggressive neoplasm generally located in the epiphysis and metaphysis of the long bones. Its occurrence in the bones of the hand is rare. Giant cell tumors occurring in the hand account for only 2% of all the GCTs reported. The epimetaphyseal region of short long bones is a common site of GCTs in the hand; however, a phalangeal GCT originating in the distal phalanx is extremely rare. We present the clinical, radiological and histopathological findings of a case of GCT of the distal phalanx of the left ring finger presenting with a fungating mass and treated with en bloc resection by disarticulation of the distal interphalangeal joint.Gorham Disease Limited to the Left Upper Extremity Without Hand Involvement
In this case report, we present a young female patient with a history of Gorham disease, who sustained pathologic fractures of the left radius and ulna after a low-impact fall. Massive osteolysis of the left forearm and wrist was noted on plain radiographs. The patient had had 8 previous left upper-extremity fractures without evidence of disease in any other area of the body.Pediatric Olecranon Osteochondral Flap Fractures With Subtle Radiographic Abnormality
Pediatric olecranon osteochondral flap fractures are shear injuries of the humeroulnar joint with elevation of an articular cartilaginous flap from the subchondral bone of the olecranon articular surface. All previously reported cases included an osteochondral flap containing the coronoid, with varying imaging and fixation methods used. We treated 2 pediatric patients with this injury. One of our patients had a large, displaced osteochondral fracture of the medial semilunar notch including the coronoid, in addition to avulsions of the medial flexor mass and distal ulnar collateral ligament.Unusual Manifestation of Chronic Lymphocytic Leukemia in the Hand
Chronic lymphocytic leukemia (CLL) involving the hand, especially with bone involvement, is extremely rare. We report a case of a 62-year-old man, with a 4-year history of a subclinical CLL, presenting with chronic swelling and pain over the dorsal surface of the right hand, mimicking an infectious process. There was no clinical response to broad-spectrum antibiotics and topical corticosteroid therapy. Imaging was inconclusive. A tissue biopsy revealed a manifestation of the underlying leukemia.Hand Deformities in Hajdu-Cheney Syndrome: A Case Series of 3 Patients Across 3 Consecutive Generations
Hajdu-Cheney syndrome is a rare condition characterized by acro-osteolysis, osteoporosis, and multiple craniofacial anomalies. The goal of treatment is to reduce the associated symptoms and to prevent osteoporotic fractures. This is a report of 3 patients across consecutive generations demonstrating variable phenotypic severity. The hand surgeon was the first medical care provider visited by the patients because of the shortening of the fingers.Mycobacterium bolletii Osteomyelitis of the Metaphyseal Distal Radius Treated With Amikacin Antibiotic Beads
Mycobacterium bollettii, a subset of the group M. abscessus, is a slow-growing, nontuberculous mycobacterium that was first characterized in the early 2000s. We report a case of M. bollettii infection in an otherwise healthy 49-year-old man who sustained an open fracture of the right distal radius. After his initial surgery, the patient presented 1 month later with wound drainage requiring hardware removal and was treated with intravenous antibiotics. However, there was a persistent infection. We treated his osteomyelitis with debridement and placement of amikacin antibiotic beads.Rapidly Progressive Soft Tissue Infection of the Upper Extremity With Aeromonas veronii Biovar sobria
Aeromonas veronii, a bacterium found in freshwater, is an unusual pathogen in healthy patients. We present a case report of a rare, aggressive subtype in a young, immunocompetent individual. History of injury in an aquatic environment and culture data are key for identification of the causal agent and should dictate acute clinical management and antibiotic therapy. Coverage should include cephalosporins, quinolones, or sulfas if Aeromonas is suspected, and adjusted depending on culture and sensitivity.Topical Treatment for Cutaneous Mucormycosis of the Upper Extremity
Mucormycosis is a relatively rare but extremely aggressive fungal infection that commonly affects patients who are compromised hosts. These infections typically come in various patterns: pulmonary, sinus, rhinocerebral, cerebral, cutaneous, or disseminated forms. Treatment usually consists of a combination of antifungal agents and surgical debridement, although morbidity and mortality are high. In this case report, we describe the course of a patient with a disseminated Mucor infection, primarily involving the upper extremities, who was successfully treated with topical and systemic antifungal agents without the need for surgical intervention.Ulnar Artery Aneurysm as a Late Sequela of Marfan Syndrome
Marfan syndrome (MFS) is a connective tissue disorder caused by mutations of the FBN1 gene encoding fibrillin-1, which leads to overexpression of transforming growth factor-β, increased hyaluronan deposition, and matrix metalloproteinase activity in the media of the aorta and other muscular arteries. Marfan syndrome patients present with connective tissue laxity and aneurysmal changes to muscular arteries. Successful medical and surgical intervention has prolonged the life expectancy of MFS patients, which can allow atypical presentations of the syndrome to manifest.Pathological Findings of Hourglass-Like Constriction in Spontaneous Posterior Interosseous Nerve Palsy
We report the pathological findings of hourglass-like fascicular constriction (HLFC) under optical and electron microscopy. A 24-year-old man with spontaneous posterior interosseous nerve palsy was treated by interfascicular neurolysis at 29 weeks after onset. One fascicle in the radial nerve presented severe HLFC with torsion at 5 cm proximal to the elbow. Functional recovery was achieved by resection of the enlarged fascicle including HLFC and sural nerve grafting. Proximal to the HLFC, the endoneurium was filled with clusters of regenerating nerve fibers.Iatrogenic Femur Fracture Following Medial Femoral Condyle Flap Harvest
A case of iatrogenic femoral fracture after harvest of a medial femoral condyle flap is presented. The procedure was performed for a recalcitrant nonunion of the clavicle that required a flap of 6 × 1 × 1 cm. The patient suffered a supracondylar fracture at the proximal extent of the flap harvest site 3 weeks after surgery, requiring surgical fixation of the femur.Targeted Muscle Reinnervation in the Hand: Treatment and Prevention of Pain After Ray Amputation
Targeted muscle reinnervation (TMR), originally developed as an experimental technique for prosthetic control, has been shown to be safe and effective for the treatment and prevention of postamputation pain. Targeted muscle reinnervation involves coaptation of residual nerve ends to nearby motor nerve branches of healthy but expendable muscles proximal to an amputation. It has been shown to prevent and reduce residual limb pain and phantom limb pain after major upper and lower extremity amputation.Bilateral Plexiform Neurofibromas of the Posterior Interosseous Nerve Mimicking Dorsal Wrist Ganglions
A 33-year-old woman presented with bilateral dorsal wrist masses associated with pain and limited range of motion. On initial presentation, the masses were believed to be ganglion cysts and the patient opted for observation. Three years later, she was found to have a chest wall mass diagnosed by biopsy to be a neurofibroma. When she later returned to seek treatment for her wrist masses, magnetic resonance imaging demonstrated posterior interosseous nerve (PIN) neurofibromas. Dorsal wrist masses situated over the scapholunate interval are commonly attributed to ganglion cysts.Linear Morphea With Inflammatory Myositis
Morphea is an autoimmune disorder characterized by sclerosis and inflammation of the skin and soft tissues. Early diagnosis and treatment are essential to minimize morbidity such as joint contracture. In this report, we present the case of a 19-year-old man with linear morphea with inflammatory myositis who presented to our clinic 1 year after symptom onset with severe elbow flexion contracture. Through reviewing this rare disorder, it is hoped that early diagnosis will lead to better outcomes in the future.
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